Physics Acceleration

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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NGSS.HS-PS2-1

A ball of clay is thrown at a wall at a velocity of 28.0 m/s. After it hits the wall, it takes 0.020 s to stop. What is the acceleration of the clay when it hits the wall? Caution:   $V_f$  is the point where the clay ball hits the wall, 0 m/s.

• 1400 m/s²

• -1400 m/s₂

• 0.56 m/s²

• -0.56 m/s²

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NGSS.HS-PS2-1

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.

• 30 m/s

• 24 m/s²

• 9 m/s²

• 81 km/hr

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NGSS.HS-PS2-1

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

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

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NGSS.HS-PS2-1

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? Caution:   $V_f$  is where the dog comes to a stop, 0 m/s.

• -7.5 m/s

• -7.5 m/s²

• -0.5 m/s²

• 7.5 mi//hr

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NGSS.HS-PS2-1

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

• 2.2m/s²
• 7.0m/s²
• 5.7m/s²
• 70m/s²

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NGSS.HS-PS2-1

Acceleration is defined as the CHANGE in 

• time it takes for one place to move to another place. 
• velocity of an object.
• distance divided by the time interval 
• velocity divided by the time interval 

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

• Its direction changes

• It doesn't

• It slows down

• Its speeds up

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NGSS.HS-PS2-1

Acceleration only takes place when things speed up. 

• True
• False

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NGSS.HS-PS2-1

Which graph represents the greatest acceleration?

• A
• B
• C
• D

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NGSS.HS-PS2-1