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Electromagnetic spectrum quiz

A 7th-grade quiz on the electromagnetic spectrum where students identify wave types based on wavelength and energy, select infrared wave uses, compare microwave and visible light energy, and recognize waves used in cell phone communication through multiple-choice and matching questions.

By Edform · Science · Grade 7 · Published Oct 15, 2026 · New

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Questions

  1. Which type of electromagnetic wave has the longest wavelength?
  2. Which of the following are uses of infrared waves? Select all that apply.
  3. Microwaves have more energy than visible light.
  4. What type of electromagnetic wave is used in cell phone communication?
  5. Which type of electromagnetic radiation is responsible for causing sunburn?
  6. Select all electromagnetic waves that can be used for medical imaging.
  7. Visible light has a shorter wavelength than ultraviolet rays.
  8. What is the only type of electromagnetic wave that humans can see?
  9. Which electromagnetic wave has the highest frequency?
  10. If a wave has a wavelength of 2 meters and a frequency of 150,000,000 Hz, what is its speed? (Speed = wavelength × frequency)
  11. Which of the following is NOT a use of radio waves?

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