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9 Cards in this Set
- Front
- Back
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work
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the use of force to move an object
if you don't use a force, you don't do work |
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simple machine
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a tool with few or no moving parts that helps people do work
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lever
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a bar that pivots or turns on a fixed point called a fulcrum
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fulcrum
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the fixed point on a lever that doesn't move
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wheel and axle
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a simple machine that is made up of a wheel and axle that are connected so that they turn together
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pulley
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is a wheel with a rope around it
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inclined plane
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a simple machine that makes moving or lifting easier
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wedge
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a simple machine that is made up of two inclined planes placed back to back. It is used to force two things apart
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screw
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a simple machine you turn to lift an object or hold two or more objects together
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