Physics crossword

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Across
  1. 3. the natural science that studies matter, its fundamental constituents
  2. 6. a class of waves in which the particles of the disturbed medium.
  3. 7. the SI unit of frequency.
  4. 9. a variable whose variation does not depend on that of another.
  5. 10. the rate per second of a vibration.
Down
  1. 1. wave consisting of a periodic disturbance or vibration.
  2. 2. the variables being tested and measured in an experiment.
  3. 4. how long the wave is.
  4. 5. the way a noise may sound high or low.
  5. 8. the systematic study of the structure and behaviour of the physical and natural.