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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 |