Speed, Velocity, and Acceleration Review

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken.

Front

How do you calculate speed?

Back

Speed equals distance divided by time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is an example of velocity?

Back

A butterfly flying at 20 mph northwest is an example of velocity.

Front

If two cars are moving at the same speed but in opposite directions, what can be said about their speeds?

Back

Both cars have the same speed.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.

Front

How can you find the average speed of a train that travels 100 kilometers in 4 hours?

Back

Average speed = total distance / total time = 100 km / 4 h = 25 km/h.

Front

What is a scalar quantity?

Back

A scalar quantity is a physical quantity that has magnitude only, such as speed.

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction, such as velocity.

Front

What happens to the speed of an object if it accelerates?

Back

If an object accelerates, its speed increases over time.