Physics crossword

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Across
  1. 2. how fast work is done
  2. 5. forces that causes motion
  3. 6. how much it takes up
  4. 7. what lets you see
  5. 8. light bounces off a surface
Down
  1. 1. makes things warmer
  2. 3. vibrating in your ears
  3. 4. much something speed with direction