Acceleration Review

A car has an oil drip that drops every second. What is happening to the motion of the car shown above?

• Car is moving with a constant velocity

• Car is accelerating or speeding up

• Car is decelerating or slowing down

• Car is changing directions

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Acceleration is a change in _________ or __________.

• speed or direction

• speed or distance

• displacement or speed

• speed or displacement

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A car starts from rest and accelerates uniformly to a speed of 5 m/s in 2.5 seconds. The magnitude of the acceleration of the car is

• 2 m/s²

• 2 m/s

• 12.5 m/s²

• 12.5 m/s

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A jogger starting from rest accelerates at 0.5 m/s². What is the jogger's change in velocity at the end of 6 seconds.

• 3 m/s

• 3 m/s²

• 12 m/s

• 12 m/s²

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The graph above shows an object moving with a constant velocity. What would be the corresponding velocity/time graph?

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• 
• 

The units for acceleration is...

• m/s

• m/s/s

• m*s

• m*s*s

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A dog runs with an initial speed of 7.5 m/s on a waxed floor.  It slides to a stop in 15 seconds.  What is the acceleration?

• -7.5 m/s

• -7.5 m/s²

• -0.5 m/s²

• 7.5 mi//hr

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A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

• 750 seconds

• 35 seconds

• 0.3 seconds

• 3.3 seconds

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Select the equation for acceleration.

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• 
• 

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When a car goes around a corner at 20 mph, why do we say it  accelerates?

• The car is accelerating because of the velocity is constant

• The car accelerates because it's going 20 mph

• Cars always accelerate when they are in motion

• The car is accelerating because it's changing direction

Tags

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