Physical Science Fall Semester Test

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A change in position with respect to a reference point is _________

• distance
• motion
• speed
• velocity

You do not know an object’s velocity until you know its ___________.

• motion
• distance
• speed and direction
• time

If you know a car travels 30 km in 20 minutes you can find its _______

• average speed
• velocity
• force
• acceleration

Acceleration is a change in speed or ______________.

• distance
• velocity
• slope
• direction

The rate at which velocity changes is called ____________

• motion
• acceleration
• speed
• slope

The distance an object travels per unit of time is called __________.

• velocity
• acceleration
• speed
• motion

The base SI unit of length is the ______

• meter
• gram
• liter
• mile

The SI unit of ____________ is m/s^2.

• speed
• motion
• acceleration
• velocity