Electromagnetic Spectrum Worksheet
Explore the electromagnetic spectrum with this Grade 9 science worksheet covering waves, properties, and applications.
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Electromagnetic Spectrum Worksheet
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Read each question carefully and answer to the best of your ability. Refer to the provided diagram of the electromagnetic spectrum as needed.
1. Which type of electromagnetic wave has the longest wavelength?
Gamma rays
Radio waves
Visible light
X-rays
2. Which part of the electromagnetic spectrum is detectable by the human eye?
Ultraviolet
Infrared
Visible light
Microwaves
3. Electromagnetic waves are transverse waves that can travel through a .
4. As the wavelength of an electromagnetic wave decreases, its frequency and its energy .
5. are used in remote controls and night vision goggles.
6. All electromagnetic waves travel at the same speed in a vacuum.
True
False
7. X-rays have lower energy than radio waves.
True
False
8. List three practical applications of microwaves.
9. Explain the relationship between wavelength, frequency, and energy for electromagnetic waves.
Match each type of electromagnetic wave with its common application.
10. Radio waves
a. Medical imaging
11. Infrared waves
b. Broadcasting and communication
12. X-rays
c. Sterilization of medical equipment
13. Gamma rays
d. Heat lamps and remote controls