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# Science chapter 23

### Science chapter 23 test

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

what is oscillation that travels from one place to another. | a wave |

Why are Waves a traveling form of energy? | because they can change motion. |

You can think of a wave as what? | a moving series of high points and low points. |

The frequency is? | a wave is the rate at which every point on the wave moves up and down. |

what is the distance from any point on a wave to the same point in the next cycle of the wave. | wavlength |

The speed of a water wave is what | how fast the wave spreads |

A wave moves one wavelength in each what? | cycle |

What is the speed? | it is the distance traveled (one wavelength) divided by the time it takes (one period). |

When a wave encounters a surface, what four interactions can occur. | 1. reflection, 2.refraction, 3.diffraction, or 4. absorbent. |

what usually changes the direction and shape of the waves? | Diffraction |

What 2 types of waves are there? | Transverse, longitudinal |

what are waves that are in the same direction that the wave moves | Longitudinal wave |

What happens when waves add up to make a larger amplitude. | Constructive interference |

What waves add up to make a wave with smaller or zero amplitude. | destructive interference |

What gets us from one place to another. | Linear motion |

what is a device that swings back and forth. | Pendulum |

what is motion that repeats over and over. | harmonic motion |

what is one unit of harmonic motion. | a cycle |

what is a physical system that has repeating cycles or harmonic motion. | oscillator |

what is the maximum distance the oscillator moves away from this equilibrium position. | amplitude |

what is the gradual loss of amplitude? | Damping |

what is the frequency (or period) at which a system naturally oscillates? | natural frequency |

what happens when a periodic force that has the same frequency as the natural frequency. | resonance |

Created by:
Hunter Ross