Unit 3 Quiz: Acceleration and Momentum

Why does a car accelerate as it round 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

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

• A car speeds up after a stoplight turns green.

• A car slows down as it approaches a red light

• A car with the cruise control set at 80 km/h going down a straight highway

• A car turning a curve at a constant speed

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NGSS.HS-PS2-1

The SI unit for acceleration is

• mph

• ft/sec

• m/s²

• m/s

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A negative acceleration means that your object is _____. 

• not accelerating
• not moving
• speeding up 
• slowing down 

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NGSS.HS-PS2-1

A positive acceleration means that your object is _____.

• not accelerating

• not moving

• speeding up

• slowing down

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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 coasters 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

The equation for acceleration is...

• 
• 
• 
• 

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NGSS.HS-PS2-1

The momentum of an object depends upon the object's ___________&_____________.  

• size and shape
• mass and speed
• mass and veloctiy
• mass and energy

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NGSS.HS-PS2-2

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

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NGSS.HS-PS2-2

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