EXP1- Measuring methods

Aim of the experiment

1- Exercise the students to use of some new and accurate instruments for doing accurate

measurements of lengths by means of a vernier.

2- Measuring the diameters of two wires and examining the accuracy of measurements.

3- Demonstrating the deformation of a wire occurring when the friction clutch is not used in

the measurements.

Devices and Instruments

Micrometer Screw

Caliper gauge (Piacolis)

EXP2- One – dimensional motion

Aim of the experiment

1- Investigate of the distance – time law.

2- Investigate of the velocity – time law.

3- Determine the relationship between mass, acceleration and force.

Devices and Instruments

Laws of experiment

𝑆 = 1

2 𝑎 𝑡2 + 𝑣0𝑡 + 𝑆0

𝐹 = 𝑚𝑎

Where:

S: Displacement. a: Acceleration. m: Mass F: Newton Force. t: Time. 𝑣0: Initial

velocity. 𝑆0: Initial position.

EXP3- Free Fall

Aim of the experiment

1- Determination of distance time law for the free fall.

2- Velocity – time law for the free fall.

3- Precise measurement of the acceleration due to gravity for the free fall.

Devices and Instruments

Timer / Counter

Laws of experiment

𝐻 = 1

2 𝑔 𝑡2

Where:

H: Height. g: Gravity Acceleration. t: Time.

EXP4- Conservation of momentum and energy

Aim of the experiment

In this lab, you will be observing the conservation of momentum under three different

conditions.

1- You will observe the elastic collision of two dynamics carts with magnet that repel one

another.

2- You will observe the perfectly inelastic collision of two dynamics carts with Velcro ends

that attach on contact.

3- You will place two carts together and observe conservation of momentum as a spring

propels the two in opposite directions from rest.

Laws of experiment

𝐸𝑘 = 1

2 𝑚 𝑣2

𝑃 = 𝑚 𝑣

Where:

𝐸𝑘: Kinetic energy. m: mass. 𝑣: velocity. P: Momentum.

Devices and Instruments

EXP5- Rotational Motion

Aim of the experiment

1- Confirming Newton’s equation of motion M = α J.

2- Compare the rotational energy with the work performed.

Where:

M: Torques. α: Angular acceleration. J: Moments of inertia.

Devices and Instruments

EXP6- Moments of inertia

Aim of the experiment

1- The moment of inertia of different bodies are determined by oscillation measurements.

Steiner’s theorem verified.

Devices and Instruments

Laws of experiment

𝐽 = 𝑇2 𝐷

4 𝜋2

Where:

𝐽: moments of inertia. T: Period. D: Angular directive force.

EXP7- Harmonic oscillations

Aim of the experiment

1- To measure the period of oscillation of the spring.

2- To compute the spring constant of the helical spring.

3- To verify Hook’s law and period law oscillation.

Devices and Instruments

Laws of experiment

𝑇 = 2 𝜋 √𝑚

𝑘

𝐹𝑥 = −𝑘 ∆𝑥

Where:

T: Period. k: Force constant. 𝐹𝑥: Restoring Force. ∆𝑥: Displacement.

EXP8- Simple pendulum

Aim of the experiment

1- To determine how mass, angle of release (the amplitude) and length affect the period of a

simple pendulum.

2- Determining the gravity acceleration g at the experiment place.

Devices and Instruments

Laws of experiment

𝑇 = 2 𝜋 √𝑙

𝑔

Where:

T: Period. g: Gravity Acceleration. 𝑙: pendulum Length.

EXP9- Laws of imaging

Aim of the experiment

1- Experimental verification of the lens equation.

2- Experimental verification of the imaging equation.

Devices and Instruments

Laws of experiment

1

𝑓 =

1

𝑆+

1

𝑆′

𝛽 =ℎ′

ℎ

𝑓 = 1

4 ( 𝑆∗ −

(𝑥1 − 𝑥2)2

𝑆∗)

Where:

f: Focal length. S: Distance between lens and object. 𝑆′: Distance between lens and image.

𝛽: Magnification of images. ℎ′: image size. ℎ: object size.

𝑆∗: Distance between screen and lamp. 𝑥1, 𝑥2: Lens position 1 and 2 for Larger and smaller

images.