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Simple Machines
| Term | Definition |
|---|---|
| machines | mechanical device that helps transfer force to help people work |
| simple machines | only require manual force from people or animals |
| arm | beam or bar of lever |
| fulcrum | pivot point on lever |
| load | object to be moved |
| effort | force needed to move the load |
| inclined plane | sloping surface used to move objects |
| inertia | resistance of object to change |
| pulley | simple machine made of a grooved wheel and a rope |
| axis | imaginary line that passes through an object |
| screw | inclined plane spiraled around an axis |
| wedge | a double inclined plane that tapers to a point |
| effort | force applied to move a load |
| force | to push or pull |
| newton | metric unit to measure force |
| wheel and axle | 2 wheels of different size rotate on the same axis |
| gear | a toothed wheel |
| work | when an object moves |