Warm Up

• A motorcyclist is traveling at 10 m/s along a flat and straight road. How long will it take to reach 32 m/s if the motorcycle can constantly accelerate at 4 m/s2?

Test Material

• Vectors (pgs. 28-32), especially section 3.3, Chapter 3 review questions 6, 24-27 (for 27, just the first 2 questions)

• Linear motion (pgs. 10-16), Chapter 2 review questions 1-14, 26-30, 42-46

• Graphs of Motion (pgs. 21-24)

Distance vs Time Graphs

• Work in groups for 4

• Go to www.explorelearning.com

• Launch the “Distance-Time Graph” Gizmo

• Complete and hand in Exploration worksheet by the end of the period– 1 per group, make sure to put ALL of your

names

Warm Up

• Sit in your normal seats for attendance

• In the Gizmo, what was happening when the graph looked like:

• A B C

• Finish Gizmo

Warm Up

• Which section of the graph shows:

• No movement?

• Fastest movement?

Warm Up

• Calculate the instantaneous velocity for section A.

Frame of Reference

• “Frame of Reference” is similar to “point of view”

• Motion is relative to the Frame of Reference

0 m/s

4 m/s

2 m/s

5 m/s

• Cheetahs have been observed running a distance of 5.50 x 102 m with an average speed of 1.00 x 102 km/h.

• How long (in hours) would it take a cheetah to cover that distance at the given speed?

• If the cheetah’s average speed was only 85 km/h, how far would cheetah run in the same time?

• A peregrine falcon, the fastest living creature, can fly 1.73 km downward in 25 s. What is the average speed of the falcon in km/h?

• Flying at it’s average speed, how long will it take to fly 300. km?

• A destroyer is initially at rest. What is it’s maximum speed if it takes 2.00 min to reach that speed at a constant acceleration of 0.19 m/s2?

• How far will it have traveled in that time?