Speed, Velocity, and Acceleration Pre/Post Test

Front

What is acceleration?

Back

Acceleration is the change in velocity of an object over time.

Front

What is the formula for average acceleration?

Back

Average acceleration = (final velocity - initial velocity) / time taken.

Front

What two measurements are necessary for calculating average speed?

Back

Distance and time.

Front

What is instantaneous speed?

Back

Instantaneous speed is the speed of an object at a specific moment in 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 does a constant speedometer reading indicate?

Back

A constant speedometer reading indicates that the speed of the vehicle is not changing, but it does not mean the velocity is constant if the direction is changing.

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).

Front

How do you calculate average speed?

Back

Average speed = total distance traveled / total time taken.

Front

What happens to the velocity of an object moving in a circular path at constant speed?

Back

The velocity is not constant because the direction is continuously changing, resulting in acceleration.

Front

What is the relationship between distance, speed, and time?

Back

Distance = Speed × Time.