Work and Machines

A push or pull is a _______.

• temperature
• force
• distance

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NGSS.MS-PS2-1

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The force caused by two objects rubbing together that slows down or stops moving objects.

• Momentum
• Gravity
• Friction

something done when a force makes an object moved through a distance

• work
• sleep
• rest

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NGSS.MS-PS3-5

the ability to do work

• power
• strength
• energy

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force can change the ________ or _______ of an object

• color or size
• direction or speed

• temperature or weight

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The more mass an object has, the more _________ pulls on it.

• magnetic force
• gravity

• friction

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NGSS.MS-PS2-4

An object's weight tells how much ______ pull on it.

• gravity
• magnetism
• friction

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NGSS.MS-PS2-4

What makes a ball stop rolling on the floor?

• Friction
• Gravity
• Magnetic force

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Friction creates _______.

• Smoothness
• Heat

• Acceleration

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The amount of work you do depends on how much _______ you use and how _____ the object is moves.

• energy, fast
• strength, heavy
• force, far

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NGSS.MS-PS3-1

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