Distance and displacement are different. Distance is scaler and displacement is vector. You should know how to calculate average velocity. You should be familiar with position- and velocity-time graphs. Velocity can be calculated from a position-time graph.

Chapter 2 Quiz:

1. If you move 10 km North, 10 km East, and 10 km South,

a. What is your displacement? (e.g. "10 km South")
b. What is the total distance you traveled?	km

2. The below graph represents the position of a mouse at a given time.

a. What is the average velocity between t = 0 to t = 4?	m/s
b. What is the distance you traveled from t = 3 to t = 7?	m
c. What is the total displacement?	m

3. Answer the questions using the following graph.

a. What is the distance it traveled between t = 0 to t = 2?	m
b. What is the instantaneous velocity when t = 4?	m/s

4. Jack and Michael are both running together at constant velocity of 10 m/s.

a. What is Jack's relative velocity to Michael?	m/s
b. What is Michael's relative velocity to Jack?	m/s

5. A rat and a cat are 25 m apart. When the rat started to run at 2 km/h, the cat started to chase him at 10 km/h. Can the cat catch the rat in 10 seconds?

("Yes" or "No")

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