Chp. 2 Midterm Review

Question 1

Consider a deer that runs from point A to point B. The distance the deer runs can be greater than the magnitude of its displacement, but the magnitude of the displacement can never be
greater than the distance it runs.

Answer 1

True

Question 2

Suppose that an object travels from one point in space to another. Make a comparison between the magnitude of the displacement and the distance traveled by this object.

Answer 2

The displacement is either less than or equal to the distance traveled.

Question 3

Consider a car that travels between points A and B. The car’s average speed can be greater than the magnitude of its average velocity, but the magnitude of its average velocity can never be greater than its average speed.

Answer 3

True

Question 4

When is the average velocity of an object equal to the instantaneous velocity?

Answer 4

When the velocity is constant

Question 5

An object is moving with constant non-zero velocity in the +x direction. The velocity versus time graph of this object is

Answer 5

A horizontal straight line