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# Work,Power,Energy

Question | Answer |
---|---|

What is a wave? | A form in which energy travels in, disturbance. |

What is a Medium of a wave? | The material in which the wave is traveling in. |

What is a Transverse wave? | Particles move perpendicular in the same direction as the wave travels. |

What is a crest? | The highest part in a Transverse wave. |

What is a trough? | The lowest part in a Transverse wave. |

What is a Longitudinal wave? | Particles that move parallel in the same direction in the wave travels. |

What is a compression? | Particles being pushed together. |

What is a rarefaction? | Particles being spread apart. |

What is a Mechanical wave? | A wave that requires a medium. |

What is an Electromagnetic wave? | Waves that have vibrations of electric and magnetic particles. |

What is Amplitude? | The measure of the space between a medium and the resting position. |

What is a wavelength? | The distance between a crest and the next crest, or a trough to a trough, or a compression to compression, or a rarefaction to rarefaction. |

What is Frequency? | The number of waves that pass through a point for a certain amount of time. |

What is a Hertz? | The label for the frequency of a wave. |

What is the wave speed? | The speed of the waves. |

What is force? What is the label for it? | The thing that moves and object. It is labeled in Newtons. |

What is work? How is it calculated and what is the label? | How much is used to do the act. Work= force x distance, it is labeled in Joules. |

What is Power? How do you calculate it? | The amount of work that was done in a certain time. Power=work divided by time. |

The force used to lift a box was 43n and she carried it for 76m. What was the work done. | 3268j |

She used 300j to lift a box in 26 seconds, what is the power she used? | 11.5w |

The speed of the wave is 6 cm/s and the wave traveled a total of 130 cm. What is the wave speed? Use speed= distance / time | About 21.7 cm/s |

Katie used a total of 40n to carry a box to a different room. Unfortunately it was too heavy for her and was unable to move it. How much Power did she use to carry the box? | She used 0w, she was unable to move it. |

Johnathan was pulling a wagon and used 99n doing it. He only went 100m. How much work did Johnathan use? | 9,900j. 100x99=9900 |

Bella used 486j, and she only went 6m. What is the amount of force did she use? | 78n. 468 / 6 = 78 |

Logan was moving a chair and used 456j doing it. It took him 70 seconds to do it, what is the power he used. | About 6.5 watts. |

Maya used 81 joules when going up the stairs and she went 9m, what is the force used? | 9 newtons. |