__ | 1. | Combination Waves | | A. | overlapping waves add their amplitudes together |

__ | 2. | Constructive Interference | | B. | not purely transverse or compressional |

__ | 3. | Destructive Interference | | C. | Overlapping waves subtract amplitude from each other |

__ | 4. | Interference | | D. | waves oscillating at right angles to the direction it moves |

__ | 5. | polarization | | E. | when waves overlap |

__ | 6. | reflection | | F. | waves bounce off a surface and continue moving |

__ | 7. | refraction | | G. | only waves vibrating in 1 direction allowed through |

__ | 8. | transverse wave | | H. | bending of a wave due to a change in velocity |