8th Grade Test 8.PS2.3

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s).

Front

How do you calculate speed?

Back

Speed = Distance / Time.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity per unit of time, measured in meters per second squared (m/s²).

Front

How do you calculate acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Front

What does a positive slope on a distance-time graph indicate?

Back

A positive slope indicates constant speed in the forward direction.

Front

What does a negative slope on a distance-time graph indicate?

Back

A negative slope indicates motion in the reverse direction.

Front

What does a horizontal line on a distance-time graph indicate?

Back

A horizontal line indicates that the object is at rest.

Front

Can acceleration occur when an object slows down?

Back

Yes, acceleration can be negative, which is called deceleration.

Front

What is the unit of speed?

Back

The unit of speed is meters per second (m/s).

Front

What is the unit of acceleration?

Back

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