Across
- 1. sound waves with frequency above 20,000 Hz
- 3. shortest wavelength EM radiation
- 4. what waves may do when hitting an opaque surface
- 5. higher frequency than visible, longer wavelength than x-ray
- 8. EM radiation that keeps the Earth warm
- 11. what type of wave is a seismic S wave?
- 13. sound that elephants can here but you can't
- 14. EM used radiation for cooking or talking to satellites
Down
- 2. what waves may do when hitting a transparent surface
- 6. what waves may do when hitting an opaque surface
- 7. the fastest sort of seismic waves
- 9. speed divided by wavelength equals
- 10. a wave is an ..... that transfers energy
- 12. what type of wave is a sound wave?