click below
click below
Normal Size Small Size show me how
Rube G's Favorite
Work and Machines
| Question | Answer |
|---|---|
| comparison of a machine’s work output with work input | efficiency |
| product of the force applied on an object through the distance which the object is moved | work |
| machine with a bar that pivots on a fixed point | lever |
| device that makes work easier by changing the size or direction of a force | simple machine |
| machine with two circular devices of different sizes that rotate together | wheel and axle |
| machine made of two or more simple machines | compound machine |
| the rate at which work is done or energy is transformed | power |
| number of times a machine multiplies effort force | mechanical advantage |
| machine with a wheel that holds a cable or rope | pulley |
| machine that is a slanted surface | inclined plane |
| unit for work and energy | joule |
| unit for power | watt |
| machine that is a moving slanted surface | wedge |
| machine that is a slanted surface wrapped around a post | screw |
| pivot point on a lever | fulcrum |