Across
- 3. Rate at which energy is transferred
- 4. Sound wave with frequency above human hearing (20 000 Hz)
- 6. A wave whose vibrations are at a right angle to the direction of the wave
- 8. Number of waves passing a point per second. Measured in hertz
- 11. The sum of the kinetic and potential energies of particles in a substance
- 16. Spectrum of transverse waves that all travel at the speed of light in a vacuum
- 18. Group of energy resources made up of coal, gas and oil
- 19. Energy required to increase the temperature of 1 kg of a substance by 1 degree C
- 20. In this state of matter particles are arranged uniformly and vibrate about fixed positions
- 21. In this state of matter particles are able to flow over each other
- 22. This type of work is done when a charge flows
Down
- 1. A wave whose vibrations are parallel to the direction of the wave
- 2. Mass per unit volume of an object
- 5. Energy required to change the state of 1 kg of a substance
- 6. Time for one complete wave to pass
- 7. Energy store of moving objects
- 9. Distance from one point on a wave to the identical point on the next wave
- 10. This type of work is done when a force moves something across a distance
- 12. In this state of matter particles have the most kinetic energy
- 13. When a wave bounces off a surface
- 14. Another phrase for 'energy transferred'
- 15. The ratio of useful output energy transfer to total input energy.
- 17. Maximum displacement of a wave from rest position