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