Motion, Speed, and Acceleration

Front

What is the rate at which velocity changes called?

Back

Acceleration

Front

What is a measure of how far something moves in a given amount of time?

Back

Speed

Front

How do you calculate average acceleration of an object?

Back

Subtract the initial velocity from the final velocity and divide by time.

Front

If the graph of an object's motion shows a horizontal line, what is the object's acceleration?

Back

Zero

Front

What happens to speed when acceleration and velocity are in opposite directions?

Back

Speed will decrease.

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is the formula for speed?

Back

Speed = Distance / Time

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What does a positive acceleration indicate?

Back

An increase in the velocity of an object.

Front

What does a negative acceleration indicate?

Back

A decrease in the velocity of an object.