Across
- 4. Acronym used to remember visible colours on the spectrum.
- 6. Height of the wave above the resting line.
- 8. The power of the wave.
- 9. Invisible to human eyes but we can feel it as heat, has a wavelength just larger than red.
- 10. Long wavelengths are used for this.
- 12. Unit used to measure frequency.
- 15. The peak or highest point above the resting line of a wave.
- 17. The distance between two crests or troughs on a wave.
- 19. The straight line in the middle of a graph which happens when there is no energy.
Down
- 1. Wave which moves backwards and forwards.
- 2. Visible colour with the smallest wavelength.
- 3. The largest type of wavelength on the EMS.
- 4. What makes stars and galaxies look different colours due to them moving closer or further or way. relative to the observer because it changes the wavelength.
- 5. The smallest type of wavelength on the EMS.
- 7. Frequency is how many of these happen in a second.
- 11. Invisible to human eyes and a form of electromagnetic radiation which has a wavelength just smaller than violet.
- 13. Electromagnetic spectrum acronym.
- 14. How many wave peaks pass a certain point after a certain amount of time.
- 16. Visible colour with the largest wavelength.
- 18. The lowest point below the resting line of a wave.