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ingram science #1
vocab quiz
| Question | Answer |
|---|---|
| a rigid bar that is free to turn about a fixed point called the fulcrum | lever |
| a wheel that turns around an axle | pulley |
| a sloping surface that does not move | inclined plane |
| an inclined plane wrapped around a central cylinder | screw |
| an inclined plane that tapers to a sharp edge | wedge |
| a wheel connected to a rigid pole | wheel and axle |
| a machine that utilizes two or more simple machines | compound machine |
| the force exerted by a machine | output force |
| the fixed point that a lever pivots around | fulcrum |
| an object when you exert a force on the object that causes the object to move some distance | work |
| compares the outpur work to the input work | mechanical advantage |
| force you exert on a machine | input force |
| device which with you can do work ina way that is easier or more effective | machine |
| SI unit of work | joules |