Physical Science - Chapter 2 - Motion

An object is _____ if its position changes relative to another object.

• in motion
• at reset
• a frame of refence
• magical

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NGSS.HS-PS2-2

Speed =

• distance / time
• time / distance
• distance * time

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You walk 10 meters to math class in 20 seconds. Your average speed is

• 2 m/s
• 0.5 m/s
• 200 m/s
• 5 m/s

On a distance-versus-time graph, a straight line ALWAYS indicates that an object’s speed is _____.

• constant
• zero
• increasing
• decreasing

Change in velocity over a given period of time is

• velocity

• motion

• speed

• acceleration

On a distance vs. time graph, the steeper the slope _____

• the slower the speed
• the faster the speed
• less acceleration
• greater acceleration

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NGSS.MS-PS3-1

What is the SI unit for acceleration?

• m/s
• m
• m/s²
• s

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NGSS.HS-PS2-1

What is the SI unit for speed

• Km
• s
• m/s
• m/s²

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When something has speed in a certain direction it is called ___________.

• motion
• position
• velocity
• speed

Acceleration of an object happens when things ________

• slow down
• go faster
• change direction (turn)
• All of the above

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NGSS.HS-PS2-1