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# Science project

### hard

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

A push or pull on an object in order to change the motion of the object measured in newtons. | Force |

The force used to move something a distance. | Work |

Vibrations inside a medium. | Wave |

The point in which the wave is the highest. | Crest |

The point in which the wave is the lowest. | Trough |

When wave particles move back and fourth in a coil. | Longitudnal Wave |

When the coil is compacted. | Compression |

When you spread spring coils apart. | Rarefraction |

Spring coil waves moving up and down. | Transverse Wave |

Waves that require a medium. | Mechanical Waves |

Waves that can travel through empty space. | Electromagnetic Waves |

The measure of how far particles in the medium move in the rest position. | Amplitude |

The distance from any point on a wave to the next identical point on the same wave. | Wavelength |

The number of waves that pass a point in a given amount of time. | Frequency |

The measure of frequency. | Hertz |

The speed the wave travels | Wave Speed |

The ability to do something | Power |

A material in which waves can travel through. | Medium |

If 68 W of power is produced in 18 seconds, how much work is done? | 1224 Joules |

How much time is needed to produce 720 Joules of work if 90 watts of power is used? | 8 seconds |

A set of pulleys lifts an 800 N crate 4 meters in 7 seconds. What power was used? | 457.1 Watts |

A person weighing 600 N gets on an elevator. It lifts the person up 6 m in 10 seconds. How much power was used? | 360 Watts |

If 360 Joules of work are needed to move a crate a distance of 4 meters, what is the weight of the crate? | 90 N |

If a group of workers can apply 1000 newtons to move a crate 20 meters, what amount of work will they have accomplished? | 20,000 J |

If 68 Joules of work were necessary to move a 4 Newton crate. How far was the crate moved? | 17 M |

How much work is done in holding a 15 Newton sack of potatoes while in line at the grocery store for 3 minutes. | 7.55 Joules |

Created by:
nate_morse