Acceleration Review = v/t

Which of the following is a unit for acceleration?

• km/s

• m/s²

• mi/hr

• cm

Why does a car accelerate as it turns a corner at a constant speed?

• Its direction changes

• It doesn't

• It slows down

• Its speeds up

In each of the following cases, determine where the car has no acceleration ?

• A car shortly after a stoplight turns green.

• A car approaching a red light

• A car with the cruise control set at 80 km/h

• A car turning a corner at a constant speed

A drag racer accelerated from 0 m/s to 200 m/s in 5 seconds. What was the acceleration?

• 0 m/s

• 40 m/s²

• -40 m/s²

• 40 m/s

A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What is the acceleration?

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

Choose all graphs that show constant speed to the left:

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• 
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Tags

NGSS.MS-PS3-1

Choose all graphs that show a change in velocity:

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• 
• 
• 

Choose all graphs that show slowing down:

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• 
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• 

Choose all graphs that show speeding up:

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Graph A shows...

• positive velocity

• negative velocity

• zero velocity