Across
- 2. The ..... is the bottom of a wave.
- 6. .....waves are used to penetrate solids and are used in doctor’s offices and as airports.
- 9. ......waves disturb matter.
- 11. .....waves occur when the motion of the medium is parallel to the direction of the wave.
- 12. .....waves are transverse waves that disturb electromagnetic fields.
- 13. .....is the number of waves per unit of time.
- 15. .....waves are often used in heat lamps.
Down
- 1. The ..... is the top of a wave.
- 3. .....waves are produced by stars and galaxies.
- 4. .....waves are utilized by insects to locate nectar.
- 5. ......is the distance between one point of a wave to the same point in the next wave.
- 7. ..... is the maximum distance that matter is displaced from the resting position.
- 8. .....waves have a colour spectrum known as ROYGBIV.
- 10. ......waves occur when the motion of the medium is at right angles (perpendicular) to the direction of the wave.
- 14. .....waves have the shortest wavelength and the highest frequency.