Science HW

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Across
  1. 5. the tendency to move to the pull of a huge sum of mass
  2. 7. slowing down
  3. 10. the reduction in volume
  4. 11. a kilograms speed when dropped from from 1 metre high
  5. 12. the rate at which someone/something moves
  6. 17. the distance between successive crests of a wave
  7. 18. to remain unchanged
  8. 19. an increase or decrease in the frequency of sound or light waves
Down
  1. 1. reduction in the density of something, especially air or a gas.
  2. 2. start off or getting faster
  3. 3. a relative mass
  4. 4. relating to the interrelation of electric currents
  5. 6. situated or extending across something
  6. 8. a coarse along which something/someone moves
  7. 9. running lengthwise rather than across
  8. 13. the rate at which something occurs over a particular period of time
  9. 14. a space entirely devoid of matter
  10. 15. the speed of something
  11. 16. the maximum extent of a vibration
  12. 20. star wars or strength or energy