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13 Cards in this Set
- Front
- Back
energy |
the ability to cause change |
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work |
is done when a force exerted on an object causes that object to move some distance. |
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lever |
a simple machine consisting of a rigid rod or plank that pivots or rotates about a fixed point. |
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spring scale |
an instrument used to measure force. |
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newtons |
SI (System Internationale) used to measure Force. |
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simple machine |
a machine that does work with only one movement; includes the inclined plane, wedge, screw, lever, wheel and axle, and pulley. |
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pulley |
a simple machine made from a grooved wheel with a rope or cable wrapped around the groove |
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inclined plane |
a simple machine that is a flat surface, sloped surface, or ramp |
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wedge |
a simple machine consisting of an inclined plane that moves; can have one or two sloping slides. |
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screw |
a simple machine that is an inclined plane wrapped around a cylinder or post. |
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wheel and axle |
a simple machine made from two circular objects of different sizes that are attached and rotate together. |
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fulcrum |
a fixed point around which a lever rotates. |
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complex machine |
also known as a compound machine, consists of two or more simple machines. |