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Question | Answer |
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machine | something that replaces human effort and makes work easier. |
simple machine | A tool that makes work easier; has few or no moving parts |
energy | the ability to do work |
lever | a simple machine consisting of a solid bar that rotates around a pivot point; used to lift objects. |
wheel and axle | a simple machine consisting of a grooved wheel turned by a cord or chain with a firmly attached axle together with supports |