Electromagnetic Spectrum Worksheet
Explore the properties, applications, and characteristics of the electromagnetic spectrum with this comprehensive Grade 12 science worksheet.
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Electromagnetic Spectrum
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Read each question carefully and answer to the best of your ability. Show all work for calculations.
Refer to the diagram of the electromagnetic spectrum below to answer the following questions.
1. Which of the following types of electromagnetic radiation has the longest wavelength?
Gamma rays
X-rays
Radio waves
Ultraviolet light
2. What is the approximate speed of all electromagnetic waves in a vacuum?
3 x 10^8 m/s
3 x 10^6 m/s
3 x 10^5 m/s
3 x 10^7 m/s
3. The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to and .
4. Visible light is a small portion of the electromagnetic spectrum that our eyes can detect, ranging from to .
5. Infrared radiation has a higher frequency than ultraviolet radiation.
True
False
6. Radio waves are used in medical imaging to view bones and internal organs.
True
False
7. Explain the relationship between the wavelength and frequency of an electromagnetic wave.
8. Name two practical applications for microwaves and briefly describe how they are used.
Match each type of electromagnetic radiation with its primary application.
9. Radio waves
a. Sterilization of medical equipment
10. X-rays
b. Communication (e.g., broadcasting)
11. Gamma rays
c. Medical imaging (e.g., bone fractures)
12. Infrared
d. Night vision technology