AP Physics Unit 2 Review

Select any of the following forces that would be acting on a book sliding across a desk to the right.

• Weight

• Friction

• Applied

• Normal

• Tension

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NGSS.HS-PS2-1

Magnitudes of forces are measured in Newtons. What is a Newton equal to?

• kg

• kg*m

• kg*m/s

• kg*m/s^2

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NGSS.HS-PS2-1

Assuming all frictional forces are negligible, a plausible scenario for an object represented by this FBD includes which of the following?

• A book resting on the floor.

• A ball thrown into the air.

• A sky diver with an opened parachute.

• A crane lifting a heavy cement block.

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NGSS.HS-PS2-1

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In which direction will this object accelerate?

• Upward

• Downward

• Leftward

• Rightward

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NGSS.HS-PS2-1

NGSS.HS-PS2-4

Which of the following correctly ranks the magnitude of forces acting on this object?

• Fg<Fn<Ff<Fa

• Fa<Ff<Fn<Ff

• Fg = Fn <Ff< Fa

• Ff < Fg = Fn < Fa

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NGSS.HS-PS2-1

If the mass of this object is 1 kg and it accelerates at a rate of 3 m/s^2 to the right, find the net force acting on this object.

• 1 N left

• 1 N right

• 3 N left

• 3 N right

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NGSS.HS-PS2-1

Which of the following pairs of surfaces would have the highest coefficient of friction?

• Air hockey puck and air hockey table

• Sneakers and cement sidewalk

• Bicycle tire and icy road

• Rumble strip and car tire

a push or pull on an object

• force
• mass
• volume
• weight

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NGSS.HS-PS2-1

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NGSS.HS-PS2-4

measurement of the gravitational force on an object

• kinetic energy
• temperature
• weight
• mass

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NGSS.HS-PS2-4

A tennis ball is thrown upward by a student so that it leaves their hand at 5.29 m/s. After it leaves their hand, what keeps it moving up?

• The initial force of their hand overcame gravity

• Nothing. The ball simply has inertia.

• gravity keeps it moving up.

• It is not actually moving up. That is a construct.

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NGSS.HS-PS2-1