Forces and Simple Machines Review

What do simple machines give you?

• energy

• more work

• mechanical advantage

• compound machines

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the force saved by using a machine

• distance

• Newtons

• inclined plane

• mechanical advantage

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an angled surface that is used to roll or slide something; a ramp.

• wedge

• simple machine

• screw

• inclined plane

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a triangular piece of metal, wood, rubber, etc. It is used to split or open things.

• lever

• wheel

• compound machine

• wedge

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an object that has a thin, spiraling piece with a flat top. It can be pressed and turned to attach two things.

• nail

• screw

• inclined plane

• axle

a bar used for lifting or opening.

• wedge

• inclined plane

• axle

• lever

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a round object that rolls and moves a car, bike, bus, etc.

• axle

• circle

• wheel

• wedge

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a bar on which one or more wheels rotates.

• axle

• wheel

• lever

• fulcrum

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a simple machine in which a wheel or set of wheels is used with a rope or chain to lift heavy objects.

• wheel

• rope

• pulley

• screw

The force that resists motion between two objects that are touching is:

• wheel

• gravity

• friction

• heat