Across
- 4. unit of electrical charge (7)
- 5. bending of light as is passes through one medium to another (10)
- 8. contact force that opposes motion (8)
- 10. the amount of space an object occupies (6)
- 11. when a solid becomes a gas (without becoming a liquid in between) (11)
- 15. (v – u) / t (12)
- 18. type of potential energy that an object held up high would have (13)
- 20. c is the speed of light in a ____ (6)
- 21. type of wave where particle movement and wave propagation are perpendicular (10)
- 22. the amount of matter in an object (4)
Down
- 1. colour of light that contains all colours in the visible spectrum (5)
- 2. Joules per second (4)
- 3. one of the fundamental forces (15)
- 6. phenomenon that occurs when a wave bounces off a surface (10)
- 7. effect where the frequency of a wave changes due to the source or observer moving (7)
- 9. property of matter that resists changes in motion (7)
- 12. another word for “vibrates” (10)
- 13. type of energy an object has due to motion (7)
- 14. type of energy stored in the nucleus of an atom (7)
- 16. the number of waves that pass a fixed point per unit of time (9)
- 17. lens type that is thicker at the centre (6)
- 18. EM radiation with the highest energy (5)
- 19. SI unit of electrical resistance (3)