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Work, Power, Waves
work power waves.
| Question | Answer |
|---|---|
| force | push or pull exerted on an object in order to change the motion of the object |
| work | the use of force used to move an object some distance |
| power | how fast you can accomplish work |
| wave | waves are caused by vibrations of a medium |
| medium | the material which a wave travels through |
| crest | the highest point of a wave |
| trough | the lowest point of a wave |
| longitudinal wave | particles move back and forth in the same direction that the wave travels |
| compression | when coils are pushed closer together |
| rarefaction | when coils are pulled apart |
| transverse waves | particles moving perpendicular |
| mechanical waves | a wave that requires a medium |
| electromagnetic waves | a wave that doesn't require a medium |
| amplitude | a measure of how far particles in the medium move from the rest point |
| wavelength | the distance between crests and troughs |
| frequency | the number of waves that pass a point in a given amount of time |
| hertz | how frequency is measured |
| wave speed | the speed a wave travels |
| if a dog weighs 300 newtons and you carry it 60 meters how much work do u use | 18,000j |
| if you use 1200j in 15 minutes what is the power | 0.0125w |
| if the wavelength is 10 and the period is 2 minutes what is the wave speed | 0.2 |
| what is work measured in | joules |
| what is power measured in | watts |
| what is frequency measured in | hertz |
| what is the formula to find work | force times distance |
| what is the formula to find force | work devised by distance |