Introduction to Physics

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Across
  1. 3. the force that attracts objects toward the Earth or another body.
  2. 8. the bouncing back of light or sound waves from a surface.
  3. 11. the distance travelled by an object in a certain time.
  4. 12. opposition to the flow of electric current.
  5. 13. the maximum displacement of a wave from its rest position.
  6. 14. Energy the energy an object has because of its motion.
  7. 15. a material that allows heat or electricity to pass through easily.
Down
  1. 1. mass per unit volume
  2. 2. the process where a liquid changes into a gas at the surface.
  3. 4. the number of waves or vibrations produced each second.
  4. 5. a material that does not easily allow heat or electricity to pass through.
  5. 6. the amount of matter in an object, usually measured in kilograms (kg).
  6. 7. a closed path through which electric current flows.
  7. 9. the ability to do work or make things change.
  8. 10. a force that opposes motion between two surfaces in contact.