Electromagnetic Spectrum
- used to describe the entire range of light, including those that a human eye can't see
1. Wavelength
- meters is used to describe the length of radio waves
2. Frequency
- Hz (hertz) is used as the unit for radio waves
3. Wavelength
- from radio waves ( > 1 x 10⁻¹ in meters) to gamma rays ( < 1 x 10⁻¹¹ in meters), the wavelength decreases
4. Frequency
- from radio waves ( < 3 x 10⁹ in Hz) to gamma rays ( > 3 x 10¹⁹ in Hz), the frequency increases
5. Energy
- from radio waves ( < 2 x 10⁻²⁴ in electron volts) to gamma rays ( > 2 x 10⁻¹⁴ in electron volts), the energy increases
