Gravity and Friction

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

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NGSS.MS-PS2-1

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Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

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NGSS.MS-PS3-5

What is a force that works AGAINST MOTION?

• Force
• Motion
• Gravity
• Friction

What is MOVEMENT?

• Inertia
• Force
• Work
• Motion

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NGSS.MS-PS2-1

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Why does a rolling ball stop?

• Gravity
• Friction
• Waterfalls
• Sand

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NGSS.MS-PS3-5

A push or pull that causes a change in motion

• Friction
• Gravity
• Force
• Mass

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NGSS.MS-PS2-1

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If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

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NGSS.MS-PS2-1

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If you pull the cord, what direction will the box move?

• Up
• Down
• Left
• Right

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NGSS.MS-PS2-1

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 The diagram shows forces acting on a box. 
Which statement best describes what will happen to the box as a result of these forces being applied? 

• The box will move up. 
• The box will move to the left.
• The box will move to the right. 
• The box will remain stationary.

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NGSS.HS-PS2-1

A boy rides a skate board down a hill. Eventually the skate board stops. Which is most responsible for causing the skateboard to stop?

• gravity acting on the skateboard

• friction acting on the skateboard

• the mass of the skateboard

• the mass of the boy

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NGSS.MS-PS2-2

NGSS.MS-PS3-5