Motion

Front

Which of the following dot diagrams shows an object that is accelerating? Options: A, B, Neither object is accelerating, You cannot tell from the dot diagram.

Back

B

Front

Back

constant speed

Front

Back

decreasing speed

Front

A place or object used for comparison to determine if another object is in motion is called a

Back

reference point

Front

What is velocity?

Back

speed in a specific direction

Front

What is the changing of position over time?

Back

motion

Front

What is the length of the path between two points?

Back

distance

Front

Jeff is in a stationary school bus. Which is the best reference point for him to use to determine when the bus starts to move? Options: the front entrance of the school, the school bus sitting next to him, a car waiting to pick up another student, a student walking on the sidewalk.

Back

the front entrance of the school

Front

Acceleration is the...

Back

change of speed and/or direction over time

Front

What is the unit for distance?

Back

meters (m)