Ch 2 Motion

Front

Any change of distance over time is called __________.

Back

speed

Front

Average speed is found by __________.

Back

dividing total distance traveled by the total time

Front

Total distance traveled when walking 0.5 km to a friend's house and then traveling by car 10 km to the mall.

Back

11 km

Front

If a runner maintains a constant speed of 12.0 km/h, how long will it take to complete a marathon race of 42.24 km?

Back

3.52 h

Front

A change in velocity means a change in ________.

Back

speed, direction, or both

Front

If an object has a constant velocity, then it ________.

Back

has an acceleration of zero

Front

In the equation p = mv, p stands for ______.

Back

momentum

Front

The direction and speed of an object is described by its ________.

Back

velocity

Front

The distance and direction between the final position and the starting position is the __________.

Back

displacement

Front

What is the speed of an object at any instant of time?

Back

Instantaneous speed