ch 5 vocab so Word Scramble
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| Question | Answer |
| work | transfer of energy that occurs when a force makes an object move measured joules. |
| power | amount of work done or the amount of energy transferred divided by the time required to do the work or transfer the energy measured in watts. |
| machine | device that makes doing work easier by in creasing the force applied to an object changing the direction of an applied force or increasing the distance over which a force or increasing the distance over which a force can be applied. |
| input force | the force that is applied to the machine. |
| output force | the force applied by the machine. |
| mechanical advantage | ratio of the output force exerted by a machine to the input force applied to the mechine. |
| efficiency | ratio of the output work done by the machine to the input work done on the machine expressed as a percentage |
| simple machine | device that makes doing work easier by increasing the force applied to an object changing the distance over which a force can be applied |
| pulley | simple machine that consists of a grooved wheel with a rope chain or cable running along the grove can be either fixed or movable. |
| wheel and axle | simple machine that consists of a shaft of axle attaached to the center of a larger. wheel so that the wheel rotate togather |
| inclined plane | simple machine that consists of a sloping surface such as ramp that reduces the amount of force needed to lift something by increasing the distance over which the force is applied. |
| screw | simple machine that consists of an inclined plan wrapped in a spiral around a cylindrical post. |
| wedge | simple machine that that is an inclined plane with one or two sloping sides |
| compound machine | machine that is a combination of two or more simple machines |
Created by:
summerowens
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