EM waves

• What are the types of electromagnetic waves in the electromagnetic spectrum?

  • Radio waves
  • Microwaves
  • Infrared
  • Visible light
  • Ultraviolet
  • X-rays
  • Gamma rays
• What can happen to electromagnetic waves when they encounter different materials?

  They can be reflected, absorbed or transmitted.
• What is the significance of the electromagnetic spectrum?

  It encompasses all types of electromagnetic radiation, which vary in wavelength and frequency.
• Radio waves have the biggest wavelength, but the smallest frequency.
• Gamma rays have the smallest wavelength, but the biggest frequency.
• All EM waves are transverse.
• Transverse waves oscillates perpendicular (90 degrees) to the direction of energy transfer.
• Longitudinal waves oscillate parallel (180 degrees) to the direction of energy transfer.
• What does ROYGBIV stand for?

  • Red
  • Orange
  • Yellow
  • Green
  • Blue
  • Indigo
  • Violet