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# Chapter 1 Waves

### Study for the Chapter 1 waves review.

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

Frequency= | Speed/ Wavelength |

Frequency at which a standing wave occurs. | Resonant Frequency |

Wave that consists of a combination if transverse and longitudinal waves and occurs at the surface between two different mediums. | Surface Wave |

Wavelength= | Speed/Frequency |

Speed= | Frequency x Wavelength |

What occurs when vibrations traveling through an object match the object's natural frequency? | Resonant Frequency |

Why to waves travel through a medium? | The energy travels from particle to particle. |

When a wave hits a surface through which it CANNOT pass and bounces back, it undergoes | Reflection |

Why do you see lightning from a distant storm before you hear thunder? | Light travels faster than sound. |

Compressions and rarefractions are characteristic of what type of wave? | Longitudinal Waves |

Waves combine to produce a smaller or zero-amplitude wave in a process called | Destructive Interference |

The distance between two consecutive crests of a wave is called the | Wavelength |

What is frequency measured in? | Hertz |

How are mechanical waves classified? | According to how they move |

The bending of waves around the edge of a barrier is known as | Diffraction |

The beding of waves due to the change in speed is called | Refraction |

The speed of a wave is 20 m/sec. If the wavelength of the wave is 2 meters, what is the frequency of the wave? | 20m/s divided by 2m= 10Hz |

A wave has a frequency of 10Hz and velocity of 5m/s. What is the wavelengthof this wave? | 5m/s divided by 10hz= 0.5m |

A wave with a frequency of 20Hz has a wavelength of 10 meters. At what speed will this wave travel? | 20Hz times 10m= 200m/s |

A wave with a frequency of 40Hz has a wavelength of 20 meters. At which speed will this wave travel? | 40Hz times 20m= 400m/s |

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