Radio waves

These questions test your ability to characterize radio waves and to calculate the relationship between their frequency and wavelength.

Which is true? (Explain your answer).

  1. All radio waves are electromagnetic waves.
  2. All electromagnetic waves are radio waves.
  3. All light waves are electromagnetic waves.
  4. All electromagnetic waves are light waves.
  5. All sound waves are electromagnetic waves.

Answer the following:

  1. Which will propogate more rapidly, a high-frequency radio wave or a low-frequency radio wave?
  2. Which will propogate more rapidly, a high-power radio wave or a low-power radio wave?
  3. What is the frequency of a radio wave with a wavelength of 1 meter?
  4. What is the frequency of a radio wave with a wavelength of 1/1000 meter?
  5. What is the wavelength of a 300 Mhz radio wave?
  6. What is the wavelength of a 3 Ghz radio wave?
  7. Give a formula that relates radio wave frequency and wavelength.

Which travels faster, radio or sound waves? (Explain your reasoning or cite your source).

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