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Grade 11 Electromagnetic Spectrum Worksheet with Answers

Grade 11 (US) · Year 12 (UK) · Class 11 (India) · Physics

Unit 3: Waves & ElectricityWavesNGSS HS-PS4-4

The types of electromagnetic waves, their uses and dangers, from radio to gamma rays. This free high school worksheet has 16 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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The Electromagnetic Spectrum

Grade 11 · Physics

Score___ / 16

Name

Class

Date

Learning goal: Waves · NGSS HS-PS4-4

Directions: This worksheet has 3 parts. Read the instructions at the start of each part.

Example

Which waves cause sunburn?

Answer: ultraviolet (UV)

Part A

Label the diagram. Use the words in the box.

Word bank

microwavesX-raysvisible lightradio waves
infraredultravioletgammarayslonger wavelengthhigher energy1234
  1. 1
  2. 2
  3. 3
  4. 4
Part B

Match each clue to the right word. Write the letter in the box.

  1. 5Which electromagnetic waves can we see?
  2. 6Which waves do we feel as heat?
  3. 7Which waves are used to cook food quickly?
  4. 8Which waves have the longest wavelength?
  5. 9Which color of visible light has the longest wavelength?
  6. 10Which waves have the highest energy?
  • AVisible light
  • BRed
  • CMicrowaves
  • DGamma rays
  • ERadio waves
  • FInfrared
Part C

Answer each question. Use full sentences where you can.

  1. 11

    Do all electromagnetic waves travel at the same speed in a vacuum?

  2. 12

    Can electromagnetic waves travel through empty space?

  3. 13

    Which waves carry radio and TV signals?

  4. 14

    Why are X-rays and gamma rays dangerous?

  5. 15

    Which waves are used to see bones?

  6. 16

    Order from longest to shortest wavelength: X-rays, radio, visible

★ Challenge corner for fast finishers

Why does a spinning ice skater spin faster when she pulls her arms in?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/physics/11/em_spectrum

Answer key (click to show)
  1. 1.radio waves
  2. 2.microwaves
  3. 3.visible light
  4. 4.X-rays
  5. 5.A — visible light
  6. 6.F — infrared
  7. 7.C — microwaves
  8. 8.E — radio waves
  9. 9.B — red
  10. 10.D — gamma rays
  11. 11.yes — the speed of light
  12. 12.yes
  13. 13.radio waves
  14. 14.they have high energy that can damage cells and DNA
  15. 15.X-rays
  16. 16.radio, visible, X-rays
  17. ★conservation of angular momentum (challenge corner)

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