Notes 5 Chapter 4 : Newton’s Law of Inertia Notes 5 Chapter 4 : Newton’s Law of Inertia

Notes 5Notes 5Chapter 4 : Newton’s Law of Inertia Chapter 4 : Newton’s Law of Inertia

Class work : What changes Class work : What changes motion ? motion ?

Materials : Truck, wood Materials : Truck, wood pennies,and bookspennies,and books

1.1. Predict what will happen Predict what will happen to the pennies and the car to the pennies and the car if you roll the car into the if you roll the car into the book.book.

2.2. Test your prediction :Test your prediction :

Write your observationWrite your observation

1.1. My prediction is My prediction is _______________._______________.

2.2. ________________________________

3. What might be the 3. What might be the reason for the reason for the difference between the difference between the motion of the car and motion of the car and the pennies after the the pennies after the impact ?impact ?

3. _______________.3. _______________.

4. What is Inertia ?4. What is Inertia ?

5. What is Newton’s 1st 5. What is Newton’s 1st law of motion? p46law of motion? p46

Newton’s 1Newton’s 1stst Law of Motion Law of Motion 6. If the car is traveling at a 6. If the car is traveling at a

speed of 65mi/h on Freeway speed of 65mi/h on Freeway 5 , what is the passenger’s 5 , what is the passenger’s speed ?speed ?

7. What happens to the car 7. What happens to the car when the driver suddenly when the driver suddenly stepped on the brake ?stepped on the brake ?

8. What happens to the 8. What happens to the passenger without seatbelt passenger without seatbelt in this situation?in this situation?

9. What is the purpose of 9. What is the purpose of wearing a seatbelt ?wearing a seatbelt ?

Class work: Newton’s 1Class work: Newton’s 1stst LawLaw

1.1. If the car is moving at 70 If the car is moving at 70 mi/h, what is the mi/h, what is the passenger’s speed passenger’s speed inside this moving car?inside this moving car?

2.2. A. What happens to the A. What happens to the car if the driver suddenly car if the driver suddenly stepped on the brake? stepped on the brake? b. How about it’s b. How about it’s passenger without a passenger without a seatbelt?seatbelt?

3.3. What is the purpose of What is the purpose of the seatbelt in a moving the seatbelt in a moving vehicle? vehicle?

Notes 5Notes 5Chapter 5 : Newton’s Law of Inertia Chapter 5 : Newton’s Law of Inertia

Classwork: Tug of Classwork: Tug of WarWar

Write your observations Write your observations and explain why .and explain why .

1. Stand Off1. Stand Off

Observation :Observation :

Explanation :Explanation :

2. Who won? Why? 2. Who won? Why?

Observation :Observation :

Explanation :Explanation :

Section 2 What Is a Force?Chapter 12Combined Effect of Combined Effect of ForcesForces The The net forcenet force is the combination of all the is the combination of all the

forces acting on an object.forces acting on an object. When forces act in the same direction, you When forces act in the same direction, you

add the forces to determine the net force.add the forces to determine the net force. When two forces act in opposite directions, When two forces act in opposite directions,

you subtract the smaller force from the you subtract the smaller force from the larger force to determine the net force.larger force to determine the net force.

Notes 5 :Chapter 4 and Notes 5 :Chapter 4 and Chapter 5Chapter 5

1.1. Describe force?Describe force?

2.2. What is the unit of force?What is the unit of force?

3.3. What is the letter representation of What is the letter representation of force? force?

4.4. What is a net force? What is a net force?

5. Describe a positive force .5. Describe a positive force .

6. Describe a negative force .6. Describe a negative force .

Instructions :Instructions :

What is the net force if What is the net force if these forces act upon these forces act upon an object ?an object ?

What will happen to the What will happen to the object ?object ?

1.1. F1 = 5 N to the rightF1 = 5 N to the right

F2 = 10 N to the left F2 = 10 N to the left

Net Force = F netNet Force = F net

2. F1 = 10 N to the right 2. F1 = 10 N to the right

F2 = 10 N to the left F2 = 10 N to the left

3. F1 = 20 N to the right 3. F1 = 20 N to the right

F2 = 10 N to the leftF2 = 10 N to the left


4. F1 = 20 N to the right4. F1 = 20 N to the right


5. F1 = 20 N upwards 5. F1 = 20 N upwards

F2 = 20 N F2 = 20 N downwards downwards

6. F1 = 30 N up and 6. F1 = 30 N up and Weight = 20 N Weight = 20 N

F2 =5N up F2 =5N up

Differentiate a balanced force Differentiate a balanced force and an unbalanced force and an unbalanced force

Which causes change in Which causes change in motion : balanced or motion : balanced or unbalanced force unbalanced force

What is Equilibrium ? Read p 51 Alternate Reading

Released Test QuestionsReleased Test Questions

#11#11 Hw Assignment # Hw Assignment # 14,15,1614,15,16

Review Questions p 56Review Questions p 56

#6, 7#6, 7

Review Questions p57Review Questions p57

#15, 16#15, 16

Trucks and Small Cars Trucks and Small Cars

Newton’s Second Law of Newton’s Second Law of MotionMotion

What is Newton’s 2What is Newton’s 2ndnd Law of Law of Motion? p60Motion? p60

Express this law in an Express this law in an equation. P61equation. P61

What is the unit of Force ?What is the unit of Force ?

What is the equivalent of What is the equivalent of Newton ? Newton ?

Formula and Units Formula and Units F = ma F = ma

FF is Force in newtons (N) is Force in newtons (N)

mm is mass in kilograms (kg) is mass in kilograms (kg)

aa is acceleration in m/s is acceleration in m/s22

FormulaFormula Force = m aForce = m a

Units Units Newtons = kg m /s Newtons = kg m /s22

ForceForce

Newton (N)Newton (N)

MassMass

KgKg

AccelerationAcceleration

m/s/s= m/sm/s/s= m/s22

F= ? F= ?

F= m X a F= m X a

F= 10kg X 5m/sF= 10kg X 5m/s22

F= 50 NF= 50 N

m = 10 kgm = 10 kg a = 5 m/sa = 5 m/s22

F= 50 NF= 50 N m= 20kg m= 20kg

If the mass If the mass increases, the increases, the acceleration acceleration decreases.decreases.

a= F/m a= F/m

a= 50N/20kga= 50N/20kg

a= 2.5 m/sa= 2.5 m/s22

Manipulation of Force Manipulation of Force Formula Formula

F = m X aF = m X a a = a =

m =m =

W = m X g g = W = m X g g =

m =m =

Classwork 10pts: Changes in mass, Classwork 10pts: Changes in mass, net force and acceleration- Notes net force and acceleration- Notes Fill in the table with data and compare each rowFill in the table with data and compare each row . .

F in NF in N m in kgm in kg a in m/sa in m/s22

1._________1._________ 1010 1010

2._________2._________ 2020 1010

3._________3._________ 1010 1010

5050 1010 4._________4._________

2525 1010 5._________5._________

12.512.5 6._________6._________ 2.52.5

Questions and Answer about F=ma

1. How is acceleration affected by an increase in force ?1. How is acceleration affected by an increase in force ?

2. What happens if the force applied decreases ?2. What happens if the force applied decreases ?

3. What happens to the acceleration if the mass of the 3. What happens to the acceleration if the mass of the object is increased ?object is increased ?

4. If the mass of the object is decreased , what happens 4. If the mass of the object is decreased , what happens to its acceleration ?to its acceleration ?

Weight is a Force Weight is a Force

1.1. What is Mass? P 49What is Mass? P 49

2.2. What is Weight ?p 49What is Weight ?p 49

3.3. What is the unit of What is the unit of weight?weight?

4.4. What is the formula What is the formula or equation of or equation of weight? weight?

Mass and WeightMass and WeightMass in kg Mass in kg

1.1. 16 g16 g

2.2. 303 g303 g

3.3. 40 kg40 kg

4.4. 500 g500 g

5.5. 10 g10 g

Weight in Newtons = mass Weight in Newtons = mass (m) X acceleration due (m) X acceleration due to gravity (g=10m/sto gravity (g=10m/s22))

W= mgW= mg

1.1. 16 g16 g kg = .016kg kg = .016kg

Weight = .016 kg X 10 Weight = .016 kg X 10 m/sm/s22 = .16Newtons or = .16Newtons or

W= 0.16 NW= 0.16 N

Review Questions p 56Review Questions p 56

Discuss #9,10,Discuss #9,10,

HW 13,21, 22,23, HW 13,21, 22,23, 24,25 ,38,3924,25 ,38,39


#12#12

CW: Problem Solving CW: Problem Solving using F=mausing F=ma

1.1. A 52 kg water skier is A 52 kg water skier is being pulled by the being pulled by the speedboat. The speedboat. The unbalanced force unbalanced force causes her to causes her to accelerate by 5 m/s/s. accelerate by 5 m/s/s.

a. Calculate the net force a. Calculate the net force exerted by the exerted by the speedboat neglecting speedboat neglecting friction, that causes this friction, that causes this acceleration .acceleration .

b. If the water b. If the water provides a friction provides a friction force of 50 N, will the force of 50 N, will the acceleration of the acceleration of the boat change ? boat change ? Calculate the real Calculate the real acceleration if water acceleration if water friction is present.friction is present.

10 pts each F= ma 10 pts each F= ma

– – Notes 5Notes 5

What is the net force on What is the net force on a 1,000 kg elevator a 1,000 kg elevator accelerating at 2m/saccelerating at 2m/s22??

What is the mass of What is the mass of the cart moving at the cart moving at an acceleration of an acceleration of 15 m/s15 m/s22 , if a pulling , if a pulling force 400 N is force 400 N is applied horizontally applied horizontally and a friction force and a friction force of 100 N is present of 100 N is present between the object between the object and the surface.and the surface.

Questions : #1 / p63Questions : #1 / p63Review Questions #7 Review Questions #7 /p71/p71

#19,20 21,35,36,37 #19,20 21,35,36,37


# 13,14,15# 13,14,15

Read Chapter 5 Summary Read Chapter 5 Summary p 71 p 71

Read alternate Read alternate

ExplainExplain

Read 5.4 / p 63 Read 5.4 / p 63

Write 5 information Write 5 information about friction.about friction.

Draw Figure 5.6 Draw Figure 5.6

Testing Amount of Friction –opposes motionTesting Amount of Friction –opposes motion

Slides smoothlySlides smoothly Slides roughlySlides roughly

1. Wood on Wood1. Wood on Wood X moves easilyX moves easily

less friction less friction X less motion X less motion more frictionmore friction

2. Wood on Ceramics 2. Wood on Ceramics

3. Rubber on Dry 3. Rubber on Dry CeramicsCeramics

4. Steel on Ceramic4. Steel on Ceramic

5. Steel Pin on Stone5. Steel Pin on Stone

6. Rubber on Wet 6. Rubber on Wet

CeramicsCeramics

7. Rubber on carpet 7. Rubber on carpet

Friction ForceFriction ForceFriction is a force opposing motion.Friction is a force opposing motion.Unit of Friction force is Newton (N).Unit of Friction force is Newton (N).Factors affecting friction are the following :Factors affecting friction are the following : a. weight of the object a. weight of the object b. type of surfaceb. type of surfaceEquation of Friction Equation of Friction Friction force (f) = u FnFriction force (f) = u Fn f – friction force in newtons (N)f – friction force in newtons (N) u – coefficient of friction (type of u – coefficient of friction (type of

surface)surface) Fn – normal force (force perpendicular Fn – normal force (force perpendicular

to the surface)to the surface)

Matter in MotionChapter 12

Types of FrictionTypes of Friction1.1. Static frictionfriction present between Static frictionfriction present between

surfaces that opposes sliding surfaces that opposes sliding

2.2. Sliding (kinetic) friction –friction force Sliding (kinetic) friction –friction force when an object slides over a surface.when an object slides over a surface.

3.3. Rolling frictionfriction force when Rolling frictionfriction force when rollers and wheels roll over a surfacerollers and wheels roll over a surface

4.4. Air frictionfriction force present that Air frictionfriction force present that opposes the fall of an object due to the opposes the fall of an object due to the pull of gravity.pull of gravity.

Review Questions p 71 Review Questions p 71

#8 ,9#8 ,9

Problem Solving on Problem Solving on FrictionFriction

4. The force of sliding friction between the 4. The force of sliding friction between the 50 kg crate and the floor is 75 N, so an 50 kg crate and the floor is 75 N, so an applied force of 75 N will keep it sliding. applied force of 75 N will keep it sliding. How fast will it slide?How fast will it slide?

5. What will be the acceleration of the 5. What will be the acceleration of the sliding crate if we apply a force of sliding crate if we apply a force of 100N? How fast will it slide ? 100N? How fast will it slide ?

Gravity Gravity - pull to the center of the earth - pull to the center of the earthGravitational acceleration(gGravitational acceleration(g) = 9.8m /sec) = 9.8m /sec22 or or 10 m/ sec10 m/ sec22 =32 ft/ sec =32 ft/ sec 22

Free FallFree Fall – motion going down due to gravity – motion going down due to gravityWeightWeight –downward force due to gravity, Newtons –downward force due to gravity, Newtons weight weight = = mass,kg X gravitational acceleration(gmass,kg X gravitational acceleration(g))Air FrictionAir Friction , Newton– force that opposes the free fall , Newton– force that opposes the free fall

and slows down any falling object ; Parachute and slows down any falling object ; Parachute provides air friction. The larger the area of the provides air friction. The larger the area of the parachute, the greater the air friction that slows down parachute, the greater the air friction that slows down the free fall.the free fall.

Terminal Velocity – constant velocity when the Terminal Velocity – constant velocity when the

weight of the object equals the air friction. weight of the object equals the air friction.

Force of GravityForce of Gravity

Shapes our solar system and universeShapes our solar system and universe

Law of Universal Law of Universal GravitationGravitation

Every point mass attracts every single other point Every point mass attracts every single other point mass by a force pointing along the line intersecting mass by a force pointing along the line intersecting both points. The force is proportional to the product both points. The force is proportional to the product of the two masses and inversely proportional to the of the two masses and inversely proportional to the square of the distance between them:[3]square of the distance between them:[3]

F = G m1m2 / dF = G m1m2 / d22

where:where:F- force between massesF- force between massesG= Gravitational Constant G= Gravitational Constant 6.67 X 106.67 X 10-11 -11 NmNm22/kg/kg22

m1 and m2 – masses of the objectsm1 and m2 – masses of the objects d= distance between 2 massesd= distance between 2 masses

Assuming SI units, Assuming SI units, FF is measured in newtons is measured in newtons (N), (N), mm1 and 1 and mm2 in kilograms (kg), 2 in kilograms (kg), rr in meters in meters (m), and the constant (m), and the constant GG is approximately equal is approximately equal to 6.674×10−11to 6.674×10−11 N m2 kg−2.[4] The value of the constant N m2 kg−2.[4] The value of the constant GG was was first accurately determined from the results of first accurately determined from the results of the Cavendish experiment conducted by the the Cavendish experiment conducted by the British scientist Henry Cavendish in 1798, British scientist Henry Cavendish in 1798, although Cavendish did not himself calculate a although Cavendish did not himself calculate a numerical value for numerical value for GG[5]. This experiment was [5]. This experiment was also the first test of Newton's theory of also the first test of Newton's theory of gravitation between masses in the laboratory. It gravitation between masses in the laboratory. It took place 111 years after the publication of took place 111 years after the publication of Newton's Newton's PrincipiaPrincipia and 71 years after Newton's and 71 years after Newton's death, so none of Newton's calculations could death, so none of Newton's calculations could use the value of use the value of GG; instead he could only ; instead he could only calculate a force relative to another force.calculate a force relative to another force.

Problem :Problem :

Compute the Force of Gravity between Compute the Force of Gravity between 0.3 kg masses whose centers are 1.5 m 0.3 kg masses whose centers are 1.5 m apart.apart.

#19/p181 Baby on Earth and Planet Mars

Released Test Questions Released Test Questions

# 17# 17

Newton’s 3Newton’s 3rdrd Law of Motion: Law of Motion: Law of Action and ReactionLaw of Action and Reaction

I. What are the 2 things reacting I. What are the 2 things reacting in the balloon race? 5ptsin the balloon race? 5pts

2. What force caused the balloon 2. What force caused the balloon to move forward ?5ptsto move forward ?5pts

3. Draw the diagram with the 3. Draw the diagram with the balloon moving forward and balloon moving forward and the direction of air exit .5ptsthe direction of air exit .5pts

44

1. What is Newton’s 31. What is Newton’s 3rdrd Law Law of Motion? P 389of Motion? P 389

2. What are the 2 things 2. What are the 2 things

reacting in the movement reacting in the movement of the swimmer in Fig 6 of the swimmer in Fig 6

p 389? 5ptsp 389? 5pts

3. Draw and explain the 3. Draw and explain the movement of the rocket on movement of the rocket on Fig 7. P 390Fig 7. P 390

5pts5pts

” ”

Experiment Experiment Mass and WeightMass and Weight

I. Purpose : To differentiate Mass and WeightI. Purpose : To differentiate Mass and Weight10pts10pts

II. Materials : 10ptsII. Materials : 10pts2 blocks of wood2 blocks of woodSpring scaleSpring scale

III. Hypothesis: How does the mass of an object III. Hypothesis: How does the mass of an object affect the weight? 20ptsaffect the weight? 20pts

Use If and then . ( One sentence only)Use If and then . ( One sentence only)

IV. Data Table IV. Data Table

BlocksBlocks Mass, Mass, gg

Mass, Mass, kgkg

CalculatedCalculated

Weight,Weight,

NewtonNewton

MeasuredMeasured

Weight, Weight,

NewtonNewton

HeavyHeavy

LightLight

Analysis and ConclusionAnalysis and Conclusion

1.1. What is the purpose of this experiment?What is the purpose of this experiment?2.2. What was your hypothesis?What was your hypothesis?3.3. Was your hypothesis correct ? Why?Was your hypothesis correct ? Why?4.4. When the mass of the object is greater , When the mass of the object is greater ,

what happens to the weight of the what happens to the weight of the object?object?

5.5. What is the acceleration due to gravity? What is the acceleration due to gravity? Explain its effect on free falling object.Explain its effect on free falling object.

Momentum Momentum 1.1. What comes into your mind when you What comes into your mind when you

hear the word “MOMENTUM hear the word “MOMENTUM

2.2. Define momentumDefine momentum p 86p 863. Formula of momentum p863. Formula of momentum p864. Unit of momentum p864. Unit of momentum p865. What is impulse ? P 875. What is impulse ? P 876. Relate Impulse and momentum p 876. Relate Impulse and momentum p 87

Problem SolvingProblem Solving

1.Which have greater momentum : 3 kg 1.Which have greater momentum : 3 kg sledge hammer swung at 1.5m/s or a 4kg sledge hammer swung at 1.5m/s or a 4kg sledgehammer swung at 0.9m/s?sledgehammer swung at 0.9m/s?

2. A golf ball travels at 16 m/s, while a 2. A golf ball travels at 16 m/s, while a baseball moves at 7 m/s. The mass of baseball moves at 7 m/s. The mass of the golf ball is 0.045 kg and the mass of the golf ball is 0.045 kg and the mass of the baseball is 0.14 kg. Which has the baseball is 0.14 kg. Which has greater momentum? 20 ptsgreater momentum? 20 pts

3.3. What is the momentum of a bird with a What is the momentum of a bird with a mass of 0.018 kg flying at 15 m/s? 10 ptsmass of 0.018 kg flying at 15 m/s? 10 pts

Impulse Problems

What impulse occurs when an average force of 20 N is exerted on a vehicle for 5 sec?

What change in momentum does the car undergo ?

CW : Calculate the impulse of a 5N force creates to

a box for 2 sec? What is the change in momentum?

Law of Conservation Law of Conservation of Momentum of Momentum

1. State the Law of 1. State the Law of Conservation of Conservation of Momentum p 92-Momentum p 92-9393

2. Equation of the Law 2. Equation of the Law of Conservation of of Conservation of Momentum Momentum

Differentiate Elastic and Inelastic Collision p94-95

Elastic Collision

Inelastic Collision

Law of Conservation of Law of Conservation of Momentum Problem Solving Momentum Problem Solving

a. What happens when two trains of the same mass of a. What happens when two trains of the same mass of 30,000 kg collide? Train X is traveling at 10 m/s. Train X 30,000 kg collide? Train X is traveling at 10 m/s. Train X catches up train Y which is traveling at 5m/s and bump catches up train Y which is traveling at 5m/s and bump into it. What will be the speed of train X if train Y moves at into it. What will be the speed of train X if train Y moves at a speed of 10m/s after the collision?a speed of 10m/s after the collision?

b. Suppose that the train X moves down the track at 10 m/s b. Suppose that the train X moves down the track at 10 m/s and hits train Y,which is not moving. What happens to and hits train Y,which is not moving. What happens to train Y when train X stopped after the collision.train Y when train X stopped after the collision.

c. Suppose after the collision in problem b, instead of c. Suppose after the collision in problem b, instead of bouncing off each other , the two train cars couple bouncing off each other , the two train cars couple together when they hit. What will be their velocity after together when they hit. What will be their velocity after collision?collision?

Released Test Questions

# 31, 32,33 Hint p 93 Text ,34,35, 36

Directly Proportional Directly Proportional

- Is when x increases - Is when x increases the y increases as the y increases as well or when x well or when x decreases the y decreases the y decreases .decreases .

Inversely Inversely proportional – is proportional – is when x increases , y when x increases , y decreases or when x decreases or when x decreases the y decreases the y increasesincreases

Forces Ca StandardForces Ca Standard 8.2. a-c 8.2. a-c

Objectives : I will be able to define a force and Objectives : I will be able to define a force and determine if the force is positive or negative based on determine if the force is positive or negative based on its direction.its direction.

I will be able to plot forces based on its direction using I will be able to plot forces based on its direction using a protractora protractor

I will be able to explain the 1I will be able to explain the 1stst law of Newton law of Newton I will be able to calculate force using 2I will be able to calculate force using 2ndnd law of Newton law of Newton

F= ma and calculate weight using W=mg g = 9.8 m/sF= ma and calculate weight using W=mg g = 9.8 m/s22

I will define gravity, projectile, inertia, mass, force ,air I will define gravity, projectile, inertia, mass, force ,air resistance, projectile motion and trajectoryresistance, projectile motion and trajectory

Materials:Materials:

Physical Science Physical Science TextbookTextbook

RopeRopeHandkerchiefHandkerchiefToy carsToy carsIncline planeIncline planeBlocksBlocksForce measurerForce measurerstopwatchstopwatch

ProtractorProtractorRulersRulers

Objectives:Objectives:

To verify what are the effects of increasing and To verify what are the effects of increasing and decreasing the amount of force on the object’s decreasing the amount of force on the object’s acceleration.acceleration.

To verify the effect of gravity and air resistance To verify the effect of gravity and air resistance on the object’s motion.on the object’s motion.

To understand the word momentum through To understand the word momentum through demonstration and calculation. demonstration and calculation.

Experiment : Forced to Experiment : Forced to Accelerate -100 ptsAccelerate -100 pts

I.I. Purpose: To determine the relationship of Purpose: To determine the relationship of force and acceleration 10 ptsforce and acceleration 10 pts

II.II. Materials : 10 ptsMaterials : 10 pts

spring scalespring scale

string stopwatchstring stopwatch

wood blockswood blocks

meter stickmeter stick

masking tapemasking tape

III. Procedures:III. Procedures:

1.1. Attach a loop of string to a block.Attach a loop of string to a block.

2.2. Attach a spring scale to the loop of string.Attach a spring scale to the loop of string.

3.3. Pull the spring scale straight to apply the Pull the spring scale straight to apply the lowest amount of force just to move the lowest amount of force just to move the block. block.

4.4. Record this smallest force on the first line.Record this smallest force on the first line.

5.5. Add 1N to the smallest force on step 5 and Add 1N to the smallest force on step 5 and record this on the second line.record this on the second line.

7 . Pull the spring scale with the force on the 7 . Pull the spring scale with the force on the second line and measure the time it takes for second line and measure the time it takes for the object to move from start to finish. Record the object to move from start to finish. Record as t1 as t1

8.8. Repeat step 7 twice . Record as t2 and t3.Repeat step 7 twice . Record as t2 and t3.

9.9. Calculate average time using Calculate average time using

t = t1 + t2 + t3 / 3t = t1 + t2 + t3 / 3

10. Calculate speed by dividing distance by 10. Calculate speed by dividing distance by average time .Use 1m as distance. Record.average time .Use 1m as distance. Record.

11.11. Calculate average acceleration by Calculate average acceleration by

a=Vf - 0 / ave timea=Vf - 0 / ave time

IV. Data TableIV. Data Table ForceForce, N, N

t1t1 t2t2 t3t3 AveAve

timetime

Ave Ave

SpeedSpeed= Vf= Vf

a = Vf-a = Vf-0 / t0 / t

2N2N

3N3N

4N4N

5N5N

V. Graph Force vs. AccelerationV. Graph Force vs. Acceleration

VI. Analysis and ConclusionVI. Analysis and Conclusion1.1. What happened to the acceleration when the force What happened to the acceleration when the force

increases by 1N ? 2N ? 3N?increases by 1N ? 2N ? 3N?2.2. What generalization can we derive from this What generalization can we derive from this

experiment?experiment?


Objectives : I will be able to define a force and Objectives : I will be able to define a force and determine if the force is positive or negative based on determine if the force is positive or negative based on its direction.its direction.





Parachute Design ( 100 pts) Parachute Design ( 100 pts) Single space Font 12Single space Font 12

Due Date : March 26, 2007Due Date : March 26, 2007Display Board or Technical PaperDisplay Board or Technical Paper

I.I. Problem :5 pts. To construct a Problem :5 pts. To construct a parachute that will drop from 2m parachute that will drop from 2m height in 5- 5.5 sec without height in 5- 5.5 sec without breaking the eggbreaking the egg

II Introductory Information 10 pts : II Introductory Information 10 pts : Purpose, Parcahute,Purpose, Parcahute,

Newton’s Laws of Motion, air friction, Newton’s Laws of Motion, air friction, weight, mass, acceleration due to weight, mass, acceleration due to gravity, gravity, parachute design, gravity, gravity, parachute design, free fall, terminal velocity free fall, terminal velocity Introductory Information 10 pts : Introductory Information 10 pts : Purpose, Parcahute,Purpose, Parcahute,

Newton’s Laws of Motion, air friction, Newton’s Laws of Motion, air friction, weight, mass, acceleration due to weight, mass, acceleration due to gravity, gravity, parachute design, gravity, gravity, parachute design, free fall, terminal velocity – at least free fall, terminal velocity – at least 3 resources 2 pages 3 resources 2 pages

III. List of Materials 5 ptsIII. List of Materials 5 ptsIV. Detailed Drawing with IV. Detailed Drawing with

measurements 5 ptsmeasurements 5 pts for each design ( at least 5 designs )for each design ( at least 5 designs )V. Computations : 5 ptsV. Computations : 5 pts Surface Area of each Parachute Surface Area of each Parachute

DesignDesignVI. Procedures 5 ptsVI. Procedures 5 ptsVII. Data Table 10 ptsVII. Data Table 10 ptsVIII. Graph 5 pts ( Area vs VIII. Graph 5 pts ( Area vs

Speed)Speed)IX. Analysis and Conclusion 10 ptsIX. Analysis and Conclusion 10 pts

Parachute Design ( 300 pts)Parachute Design ( 300 pts)

I.I. Cover Page 10ptsCover Page 10pts

II.II. Purpose :To construct a parachute Purpose :To construct a parachute that will drop from 2m height in 3- 3.5 that will drop from 2m height in 3- 3.5 sec without breaking the egg. sec without breaking the egg.

To document the project To document the project using a display board and 10-15 pages using a display board and 10-15 pages technical paper.technical paper.

III. Introductory Information 10 pts : III. Introductory Information 10 pts : Purpose, Parachute,Purpose, Parachute,

Newton’s Laws of Motion, air friction, Newton’s Laws of Motion, air friction, weight, mass, acceleration due to gravity, weight, mass, acceleration due to gravity, gravity, parachute design, free fall, gravity, parachute design, free fall, terminal velocity, motion, speed, distance terminal velocity, motion, speed, distance , velocity, velocity

IV. Hypothesis: If … then….IV. Hypothesis: If … then….

V. Experimental:V. Experimental:

a. Materialsa. Materials

b. Proceduresb. Procedures

c. Variables c. Variables

VI. Detailed Drawing with measurements VI. Detailed Drawing with measurements

5 pts for each design ( at least 5 designs )5 pts for each design ( at least 5 designs )

VII. Computations : 5 ptsVII. Computations : 5 pts

Surface Area of each Parachute DesignSurface Area of each Parachute Design

VIII. Data Table 10 ptsVIII. Data Table 10 pts

IX. Graph 5 pts ( Area vs Speed)IX. Graph 5 pts ( Area vs Speed)

X. Analysis and Conclusion 10 ptsX. Analysis and Conclusion 10 pts

XI. BibliographyXI. Bibliography

XII. AcknowledgementsXII. Acknowledgements

XIII. Daily Log XIII. Daily Log

HypothesisHypothesis

If the area of the parachute is bigger than If the area of the parachute is bigger than 588 cm588 cm22, with ________ shape using , with ________ shape using ___________ materials , then the egg ___________ materials , then the egg will land safely in 3-3.5 sec.will land safely in 3-3.5 sec.


I will be able to define a force and determine if the I will be able to define a force and determine if the force is positive or negative based on its direction.force is positive or negative based on its direction.






To test the roller coaster and parachute designs.To test the roller coaster and parachute designs.To take pictures while testing and constructing. To take pictures while testing and constructing. To measure time and speed using V=d/tTo measure time and speed using V=d/tTo re-adjust all designs to conform to desired To re-adjust all designs to conform to desired

specifications.specifications.To fill in all data tables.( Data Table 1-3)To fill in all data tables.( Data Table 1-3)To graph the data using excel. To graph the data using excel. To analyze results by answering all guide questions. To analyze results by answering all guide questions. To finish the documentation (technical paper and display )To finish the documentation (technical paper and display )

ExperimentalExperimental


BooksBooks

ComputerComputer

Log bookLog book

Display boardDisplay board

PrinterPrinter

SuppliesSupplies

PaperPaper

PlasticPlastic

StringString

Raw EggRaw Egg

TimerTimer

Meter stickMeter stick

Experimental ProceduresExperimental Procedures

1.1. Gather all materials.Gather all materials.

2.2. Draw at least 5 designs with measurements Draw at least 5 designs with measurements in each dimension with area = 588 cmin each dimension with area = 588 cm22..

3.3. Construct the 5 parachutes and test.Construct the 5 parachutes and test.

4.4. Test the 5 parachutes whether the egg will Test the 5 parachutes whether the egg will land safely. Record it in Data Table 1.land safely. Record it in Data Table 1.

5.5. Measure the drop time of each parachute Measure the drop time of each parachute for three times. Record it in Data Table 2.for three times. Record it in Data Table 2.

6.6. Calculate the average drop time for each Calculate the average drop time for each parachute. parachute.

7.7. Calculate the speed of each parachute Calculate the speed of each parachute using V= d / t.using V= d / t.

8.8. Record the average speed in Data Table3.Record the average speed in Data Table3.

Data Table 1Data Table 1

Parachute Parachute Design Design Area,cmArea,cm22

SafelySafely

1 A=____1 A=____

2 A=_____2 A=_____

3 A=_____3 A=_____

Data Table 2Data Table 2ParachuteParachute Trial 1Trial 1

DropTimeDropTime,sec,sec

Trial 2 Trial 2 DropTime,DropTime,secsec

Trial 3 Trial 3 DropTime,DropTime,secsec

Ave Ave Drop Drop Time,Time,

secsec

ParachuteParachute

11

ParachuteParachute

22

ParachuteParachute

33

Data Table 3Data Table 3Parachute DesignParachute Design Speed, m/sSpeed, m/s

Parachute 1Parachute 1




GraphGraph

Graph 1 : Area VS. Ave TimeGraph 1 : Area VS. Ave Time

Graph 2: Area VS. Ave Speed Graph 2: Area VS. Ave Speed

Analysis and Conclusion Analysis and Conclusion

1.1. What are the science principles of this What are the science principles of this project? Discussproject? Discuss

2.2. How does gravity affect a free falling object How does gravity affect a free falling object like a parachute?like a parachute?

3.3. How does the air friction affect the motion of How does the air friction affect the motion of the parachute? Does air friction provide an the parachute? Does air friction provide an unbalanced force? Explainunbalanced force? Explain

4.4. What did you do to make sure the raw egg What did you do to make sure the raw egg lands safely?lands safely?

5 . How does the area affects air friction?5 . How does the area affects air friction?

6. What did you do to make the drop time 6. What did you do to make the drop time between 3-3.5 sec?between 3-3.5 sec?

7. How does the area affects the drop 7. How does the area affects the drop

time ?time ?

8. How does the area affects the speed?8. How does the area affects the speed?

Bibliography:Bibliography:

You should have at least 3 sources:You should have at least 3 sources:Books:Books: Title, Authors, Edition, Publishing Company, Title, Authors, Edition, Publishing Company,

Date of Publication, pagesDate of Publication, pages Web:Web: Sponsor of the Web site, Web Address, Sponsor of the Web site, Web Address,

Author, title of the page, Date of Information, Author, title of the page, Date of Information, Date when the information was taken.Date when the information was taken.

Parachute: Web Parachute: Web

www.basd.net/technology/STEEP/Technolgy/www.basd.net/technology/STEEP/Technolgy/3.6/Para%20 Design%20 ppdb.htm3.6/Para%20 Design%20 ppdb.htm

Roller Coaster: Roller Coaster:

Roller Coaster Physics. Discovery Channel Roller Coaster Physics. Discovery Channel education.Discovery Channel education.Discovery Channel Communications Inc.Bethesda MDCommunications Inc.Bethesda MD

20814—357920814—3579

www.discoveryschool.com www.discoveryschool.com

Acknowledgement Acknowledgement

Write a paragraph about people you want Write a paragraph about people you want to thank and their contributions to your to thank and their contributions to your project.project.

CA StandardsCA Standards

Copy Standards 1, 2, 9Copy Standards 1, 2, 9

Type only the standards related to your Type only the standards related to your project. project.

Pictures( Constructing Pictures( Constructing and Testing)and Testing)

Glossary( Alphabetical) Glossary( Alphabetical) ForceForceNewton Newton Net forceNet forceUnbalanced force Unbalanced force Balance forceBalance forceAccelerationAccelerationFriction Friction Air resistanceAir resistanceWeightWeightGravityGravityMotion Motion Reference pointReference pointVectorVectorDisplacementDisplacementSlopeSlopeAverage speedAverage speedInstantaneous speedInstantaneous speedWorkWorkEnergyEnergy

MassMassFree fallFree fallProjectileProjectileAreaAreaVelocityVelocitySpeedSpeedDistanceDistanceTimeTimeKinetic energyKinetic energyAcceleration due to gravityAcceleration due to gravityPotential energy Potential energy Law of Conservation of energy Law of Conservation of energy Gravitational potential energyGravitational potential energyMechanical energyMechanical energyElastic Potential Energy Elastic Potential Energy

AbstractAbstract

11stst Paragraph – Purpose and some vital Paragraph – Purpose and some vital introductory informationintroductory information

22ndnd Paragraph- Hypothesis ,Materials and Paragraph- Hypothesis ,Materials and Experimental ProceduresExperimental Procedures

33rdrd Paragraph- Variables, Explanation of Paragraph- Variables, Explanation of how data is measured, Explain the data how data is measured, Explain the data tabletable

44thth Paragraph- Analysis and Conclusion Paragraph- Analysis and Conclusion

Table of Contents Table of Contents

I.I. AbstractAbstractII.II. PurposePurposeIII.III. HypothesisHypothesisIV.IV. ExperimentalExperimental Materials Materials ProceduresProceduresV.V. VariablesVariablesVI.VI. Data TablesData Tables

VII. GraphsVII. GraphsVIII. PicturesVIII. PicturesIX. FormulaIX. FormulaX. ComputationX. ComputationXI. Analysis and XI. Analysis and

ConclusionConclusionXII. AcknowledgementXII. AcknowledgementXIII. GlossaryXIII. GlossaryXIV. BibliographyXIV. BibliographyXV. CA StandardsXV. CA Standards

Roller Coaster Design Roller Coaster Design

I.I. Cover Page – 5ptsCover Page – 5pts

II.II. Purpose : To construct a 3-5 loops roller Purpose : To construct a 3-5 loops roller coaster that will allow 3 different coaster that will allow 3 different marbles of different mass to roll down marbles of different mass to roll down and complete the loops from start to and complete the loops from start to finish at a speed of 5m/sec.finish at a speed of 5m/sec.

III. Introductory Information (10 paragraphs)III. Introductory Information (10 paragraphs) Purpose, roller coaster designPurpose, roller coaster design Motion, speed, velocity, acceleration Motion, speed, velocity, acceleration Kinetic EnergyKinetic Energy Potential energy , Law of Conservation of Potential energy , Law of Conservation of

Energy Energy Gravity Gravity Weight Weight MassMass Free fallFree fallNewton’s Laws of Motion, Acceleration due to Newton’s Laws of Motion, Acceleration due to

gravitygravity Work Work

IV. Hypothesis: If … then….IV. Hypothesis: If … then….

V. Experimental:V. Experimental:

a. Materialsa. Materials

b. Proceduresb. Procedures

c. Variables c. Variables

VI. Detailed Drawing with measurements VI. Detailed Drawing with measurements

VII. Computations : 5 ptsVII. Computations : 5 pts

VIII. Data Table 10 ptsVIII. Data Table 10 pts

IX. Graph 5 pts ( Mass vs Speed)IX. Graph 5 pts ( Mass vs Speed)

X. Analysis and Conclusion 10 ptsX. Analysis and Conclusion 10 pts

XI. BibliographyXI. Bibliography

XII. AcknowledgementsXII. Acknowledgements

XIII. Daily Log XIII. Daily Log

Abstract Abstract

The project is about designing a a 3-5 The project is about designing a a 3-5 loops roller coaster that will allow a 5g loops roller coaster that will allow a 5g marble to roll down at a speed of at least marble to roll down at a speed of at least 5 m/s. This study will also compare the 5 m/s. This study will also compare the effect of marbles with different masses effect of marbles with different masses on the marbles’ individual speed. on the marbles’ individual speed.

My hypothesis is that speed of the My hypothesis is that speed of the marble is affected by the beginning marble is affected by the beginning height of the roller coaster. height of the roller coaster.

The first step is to draw the architecture of the roller The first step is to draw the architecture of the roller coaster. The beginning height should be higher than the coaster. The beginning height should be higher than the first loop. I did a research about kinetic energy , potential first loop. I did a research about kinetic energy , potential energy , gravity , free fall and weight .The next step is to energy , gravity , free fall and weight .The next step is to prepare a list of all materials which includes pipe prepare a list of all materials which includes pipe insulation, glue and wood to support the roller coaster. insulation, glue and wood to support the roller coaster. After I bought all the materials, I tried my initial design , if After I bought all the materials, I tried my initial design , if the marble rolls completely from start to finish. When the the marble rolls completely from start to finish. When the marbles did not roll completely the whole track, marbles did not roll completely the whole track, adjustments were made on the height and the diameter adjustments were made on the height and the diameter of the loops. Then I worked on and made sure that the of the loops. Then I worked on and made sure that the support are rigid and strong enough to hold up the roller support are rigid and strong enough to hold up the roller coaster. I made necessary calculations for the speed of coaster. I made necessary calculations for the speed of the marble using the kinetic energy , potential energy and the marble using the kinetic energy , potential energy and the law of conservation of energy formulas. the law of conservation of energy formulas.

I therefore conclude that , height of the starting point I therefore conclude that , height of the starting point and the loops affect the speed of the marble. and the loops affect the speed of the marble.

HypothesisHypothesis

If the succeeding loops are lower than If the succeeding loops are lower than the starting point and previous loops then the starting point and previous loops then the marble will complete the tract from the marble will complete the tract from start to finish.start to finish.

If the starting point of the roller coaster is If the starting point of the roller coaster is _______m high then the marble will roll _______m high then the marble will roll at a speed of 5 m/sec. at a speed of 5 m/sec.

ExperimentalExperimental


BooksBooks

ComputerComputer

Log bookLog book

Display boardDisplay board

PrinterPrinter

SuppliesSupplies

WoodWood

Popsicle sticksPopsicle sticks

Triple beam balanceTriple beam balance

MarblesMarbles

Pipe insulationPipe insulation

GlueGlue

ToolsTools

Catch boxCatch box

ToysToys

Meter stickMeter stick

timertimer

Procedures:Procedures:1.1. Gather all materials.Gather all materials.2.2. Draw your 2 roller coaster designs.Draw your 2 roller coaster designs.3.3. Measure the mass of the marbles in grams.Measure the mass of the marbles in grams.4.4. Convert/ Change the grams unit to kilograms.Convert/ Change the grams unit to kilograms.5.5. Calculate the height requirement of the roller coaster Calculate the height requirement of the roller coaster

using Energy formulas.using Energy formulas.6.6. Prepare the base board.Prepare the base board.7.7. Cut the pipe insulation into half making an open track. Cut the pipe insulation into half making an open track. 8.8. Build the roller coaster using the calculated height. Use Build the roller coaster using the calculated height. Use

_________ to support the track._________ to support the track.9.9. Loops should be smaller than the previous loops .Loops should be smaller than the previous loops .10.10. Test if the marbles complete the track. If the marble just Test if the marbles complete the track. If the marble just

stall, re-adjust the roller coaster track.stall, re-adjust the roller coaster track.

11. Test the ordinary marble and measure the time 11. Test the ordinary marble and measure the time from start to finish in seconds.from start to finish in seconds.

Record it in Data Table 1. Record it in Data Table 1.

12. Repeat step 11 three times and calculate 12. Repeat step 11 three times and calculate average time for the marble. Record in Data average time for the marble. Record in Data Table1Table1

13. Repeat procedures 11-12 for steel marble and 13. Repeat procedures 11-12 for steel marble and cork marble.cork marble.

14. Calculate the speed of the three marbles using 14. Calculate the speed of the three marbles using V= d / t and record in Data Table 2. V= d / t and record in Data Table 2.

DATA TABLE 1 - MassDATA TABLE 1 - Mass

MarblesMarbles Mass in gMass in g Mass in kgMass in kg

OrdinaryOrdinary

SteelSteel

DATA TABLE 2DATA TABLE 2MarblesMarbles TimeTime

Trial1Trial1

TimeTime

Trial2Trial2

TimeTime

Trial3Trial3

AverageAverage

TimeTime

OrdinaryOrdinary

SteelSteel

DATA TABLE 3- SpeedDATA TABLE 3- Speed

MarblesMarbles Speed, V= d / tSpeed, V= d / t

OrdinaryOrdinary

SteelSteel

CorkCork

GraphGraph

Graph 1 : Mass VS. Ave TimeGraph 1 : Mass VS. Ave Time

Graph 2: Mass VS. Ave Speed Graph 2: Mass VS. Ave Speed

Analysis and Conclusion Analysis and Conclusion Guide Questions:Guide Questions:1.1. What Law affects the roller coaster design?What Law affects the roller coaster design?2.2. What is the effect of the starting point or stop What is the effect of the starting point or stop

height with the speed of the marble?height with the speed of the marble?3.3. What happens to the PE and KE as the marble What happens to the PE and KE as the marble

goes down the track?goes down the track?4.4. What makes the roller coaster work?What makes the roller coaster work?5.5. Does the mass of the marble affect the elapsed Does the mass of the marble affect the elapsed

time of the marbles? Explaintime of the marbles? Explain6.6. Does the mass of the marble affect the speed of Does the mass of the marble affect the speed of

the marbles? Explainthe marbles? Explain

Bibliography:Bibliography:

You should have at least 3 sources:You should have at least 3 sources:Books:Books: Title, Authors, Edition, Publishing Company, Title, Authors, Edition, Publishing Company,

Date of Publication, pagesDate of Publication, pages Web:Web: Sponsor of the Web site, Web Address, Sponsor of the Web site, Web Address,

Author, title of the page, Date of Information, Author, title of the page, Date of Information, Date when the information was taken.Date when the information was taken.

Acknowledgement Acknowledgement

Write a paragraph about people you want Write a paragraph about people you want to thank and their contributions to your to thank and their contributions to your project.project.

CA StandardsCA Standards

Copy Standards 1, 2, 9Copy Standards 1, 2, 9

Type only the standards related to your Type only the standards related to your project. project.

Pictures( Constructing Pictures( Constructing and Testing)and Testing)

Glossary( Alphabetical) Glossary( Alphabetical) ForceForceNewton Newton Net forceNet forceUnbalanced force Unbalanced force Balance forceBalance forceAccelerationAccelerationFriction Friction Air resistanceAir resistanceWeightWeightGravityGravityMotion Motion Reference pointReference pointVectorVectorDisplacementDisplacementSlopeSlopeAverage speedAverage speedInstantaneous speedInstantaneous speedWorkWorkEnergyEnergy

MassMassFree fallFree fallProjectileProjectileAreaAreaVelocityVelocitySpeedSpeedDistanceDistanceTimeTimeKinetic energyKinetic energyAcceleration due to gravityAcceleration due to gravityPotential energy Potential energy Law of Conservation of energy Law of Conservation of energy Gravitational potential energyGravitational potential energyMechanical energyMechanical energyElastic Potential Energy Elastic Potential Energy InertiaInertiaMomentumMomentumLaw of Conservation of MomentumLaw of Conservation of Momentum

AbstractAbstract

11stst Paragraph – Purpose and some vital Paragraph – Purpose and some vital introductory informationintroductory information

22ndnd Paragraph- Hypothesis ,Materials and Paragraph- Hypothesis ,Materials and Experimental ProceduresExperimental Procedures

33rdrd Paragraph- Variables, Explanation of Paragraph- Variables, Explanation of how data is measured, Explain the data how data is measured, Explain the data tabletable

44thth Paragraph- Analysis and Conclusion Paragraph- Analysis and Conclusion

Quiz # 2Quiz # 2

1.1. What is a force?What is a force?2.2. What is the unit of force?What is the unit of force?3.3. What is Newton’s 1What is Newton’s 1stst law of law of

Motion?Motion?4.4. What is Newton’s 2What is Newton’s 2ndnd law of law of

Motion?Motion?5.5. What is the speed of the What is the speed of the

passenger inside the passenger inside the moving car?moving car?

6. What is the purpose of the 6. What is the purpose of the seatbelt to the passenger seatbelt to the passenger when the car suddenly when the car suddenly stops?stops?

7. What is the difference of 7. What is the difference of mass and weight?mass and weight?

8. What is the equation of 8. What is the equation of force according to the 2force according to the 2ndnd law of Newton?law of Newton?

9. What is the equation to 9. What is the equation to calculate weight?calculate weight?

10. What is the numerical 10. What is the numerical value of g or gravitational value of g or gravitational acceleration ?acceleration ?

Part 2:Part 2:

Calculate the total force Calculate the total force or Fnet.or Fnet.

F1=10N F2= 20N

F3 = 30 N

F1= 20 N

F2 = 10 N

Part 3: Problem SolvingPart 3: Problem Solving

1. What is the net force on a 500 kg 1. What is the net force on a 500 kg elevator car accelerating at 200 m/sec?elevator car accelerating at 200 m/sec?

2. What net force is needed to accelerate a 2. What net force is needed to accelerate a 55 kg cart at 15 m/s2?55 kg cart at 15 m/s2?

DefinitionsDefinitionsIdentify the wordsIdentify the words

1.1. Instrument used to measure anglesInstrument used to measure angles2.2. Two equal opposite forcesTwo equal opposite forces3.3. North, East , South , WestNorth, East , South , West4.4. Change of speed Change of speed 5.5. Change of directionChange of direction6.6. An object at rest will remain at rest and an object in An object at rest will remain at rest and an object in

motion will move in its constant motion unless acted motion will move in its constant motion unless acted upon by an unbalanced forceupon by an unbalanced force

7.7. Unit of forceUnit of force8.8. A push or a pullA push or a pull

9. Force directed to the left or right9. Force directed to the left or right10. Increase in speed10. Increase in speed11. Decrease in speed11. Decrease in speed12. 9.8 m/s12. 9.8 m/s22

13. Opposing force which depends on the weight and 13. Opposing force which depends on the weight and the type of surfacethe type of surface

14. Wind opposing fall14. Wind opposing fall15. Something thrown 15. Something thrown 16. Curved motion16. Curved motion17. Path of the projectile17. Path of the projectile18. Total amount of forces acting on an object18. Total amount of forces acting on an object19. Mass X acceleration19. Mass X acceleration20. Force that changes the object’s motion.20. Force that changes the object’s motion.


Describe the space ProgramDescribe the space Program

Differentiate the roles of space shuttle and space Differentiate the roles of space shuttle and space stations.stations.

Identify features of space probes.Identify features of space probes.

Describe the condition of space compared to Describe the condition of space compared to earthearth

Identify the benefits of the space programIdentify the benefits of the space program

Identify the uses of satellites orbiting the earthIdentify the uses of satellites orbiting the earth

June 9-13, 2008June 9-13, 2008Monday: Roller Coaster Projects:Monday: Roller Coaster Projects: ModelModel Technical paperTechnical paper DisplayDisplay Rocket Science p 507Rocket Science p 507Tuesday: Sec 2 Assessment p 514, p 519 Tuesday: Sec 2 Assessment p 514, p 519 Wednesday: Sec 2 Assessment p 524Wednesday: Sec 2 Assessment p 524 Notes Big Idea p 528Notes Big Idea p 528Thursday: Review and Assessment p 529Thursday: Review and Assessment p 529 Standards Practice p 531Standards Practice p 531Friday: Communication Satellites p 527Friday: Communication Satellites p 527

Documents

Notes 5 Chapter 4 : Newton’s Law of Inertia Notes 5 Chapter 4 : Newton’s Law of Inertia