Topic 9: Electromagnetic Spectrum

Question 1

List the 4 main properties of Electromagnetic Waves

Answer 1

1. All EM Waves are transverse waves
2. All EM Waves travel at the same speed of 3x10^8 m/s in vacuum
3. The frequency of EM Waves ranges from nearly 0Hz to 10^20Hz
4. The wavelength of EM Waves can be calculated using the formula v = f入

Question 2

List the 7 types of EM Waves by ascending frequency

Answer 2

1. Radio Waves
2. Microwaves
3. Infra-red Radiation
4. Visible Light
5. Ultraviolet Radiation
6. X-rays
7. Gamma Rays