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Stack #215961
Science-Ch. 11 Voc.
Question | Answer |
---|---|
force | A push or a pull that makes something move or change direction. |
gravity | A force that pulls things toward Earth. |
friction | A force that slows down moving things. |
simple machine | Something that helps you lift or move an object. |
lever | A simple machine made of a bar that rests on a fixed point. |
fulcrum | The fixed point on which a lever rests. |
ramp | A simple machine with a slanted surface. |