electormagnetic waves

• What is the electromagnetic spectrum?

  It is the range of all electromagnetic waves
• What happens to white light when it passes through a prism?

  It splits into a spectrum of colors
• What type of waves are electromagnetic waves?

  Transverse waves
• How do electromagnetic waves transfer energy?

  From the source to an absorber
• How do solar panels utilize electromagnetic waves?

  They absorb light waves from the Sun
• What part of the electromagnetic spectrum can humans detect?

  Visible light
• What happens to the frequency and wavelength from red to violet in the spectrum?

  Frequency increases and wavelength decreases
• What is the mnemonic to remember the order of the electromagnetic spectrum?

  Raw meat is very unsanitary except giraffe
• What is the nature of the electromagnetic spectrum?

  It is a continuous spectrum
• Do electromagnetic waves need a medium to travel?

  No, they can travel through a vacuum
• What is the speed of electromagnetic waves in a vacuum?

  $3 \times 10^8 \text{ m/s}$
• How do different materials interact with electromagnetic waves?

  They absorb, transmit, or reflect waves
• What happens to microwaves when they encounter food with water molecules?

  They are absorbed by the food
• How do microwaves interact with metals?

  They are reflected from metals
• How do light waves interact with black surfaces?

  They are absorbed by black surfaces
• How do light waves interact with shiny metallic surfaces?

  They are reflected from shiny metallic surfaces