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Simple Machines
Simple Machines & Work Vocab Practice
| Question | Answer |
|---|---|
| a grooved wheel with a rope or chain around it | pulley |
| a rigid bar that rotates (pivots) about a fixed point | lever |
| a large wheel and a small wheel that are connected and rotate together | wheel & axle |
| a flat, slanted surface | inclined plane |
| a wound-up inclined plane around a cylinder | screw |
| a device that makes work easier | simple machine |
| a device made of two or more simple machines | compound or complex machines |
| a push or pull exerted on an object | force |
| the fixed point about which a lever pivots | fulcrum |
| an example of a lever | broom |
| an example of a wheel and axle | steering wheel |
| an example of an inclined plane | wheelchair ramp |
| an example of a wedge | knife |
| an example of a screw | pickle jar lid |
| When you exert a force on an object that causes that object to move some distance (Force x Distance) you have done | work |