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Grade 11 Wave Speed, Frequency & Wavelength Worksheet with Answers

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

Unit 3: Waves & ElectricityWavesNGSS HS-PS4-1

Using v = f × λ to find wave speed, frequency and wavelength. 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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Wave Speed, Frequency & Wavelength

Grade 11 · Physics

Score___ / 16

Name

Class

Date

Learning goal: Waves · NGSS HS-PS4-1

Directions: This worksheet has 2 parts. Read the instructions at the start of each part.

Example

A wave has a frequency of 43 Hz and a wavelength of 20 m. What is its speed? (v = fλ)

Answer: 860 m/s

Part A

Label the diagram. Use the words in the box.

Word bank

amplitudewavelengthcresttrough
1234
  1. 1
  2. 2
  3. 3
  4. 4
Part B

Answer each question. Use full sentences where you can.

  1. 5

    A wave travels at 561 m/s with a frequency of 33 Hz. What is its wavelength?

    λ = ?f = 33 Hzv = 561 m/sv = f × λ
  2. 6

    A wave travels at 774 m/s with a wavelength of 18 m. What is its frequency?

    λ = 18 mf = ?v = 774 m/sv = f × λ
  3. 7

    A wave travels at 350 m/s with a frequency of 25 Hz. What is its wavelength?

    λ = ?f = 25 Hzv = 350 m/sv = f × λ
  4. 8

    A wave has a frequency of 45 Hz and a wavelength of 5 m. What is its speed? (v = fλ)

    λ = 5 mf = 45 Hzv = ?v = f × λ
  5. 9

    A wave has a frequency of 5 Hz and a wavelength of 7 m. What is its speed? (v = fλ)

    λ = 7 mf = 5 Hzv = ?v = f × λ
  6. 10

    A wave has a frequency of 4 Hz and a wavelength of 14 m. What is its speed? (v = fλ)

    λ = 14 mf = 4 Hzv = ?v = f × λ
  7. 11

    A wave has a frequency of 11 Hz and a wavelength of 11 m. What is its speed? (v = fλ)

    λ = 11 mf = 11 Hzv = ?v = f × λ
  8. 12

    A wave travels at 47 m/s with a wavelength of 1 m. What is its frequency?

    λ = 1 mf = ?v = 47 m/sv = f × λ
  9. 13

    A wave has a frequency of 45 Hz and a wavelength of 6 m. What is its speed? (v = fλ)

    λ = 6 mf = 45 Hzv = ?v = f × λ
  10. 14

    A wave travels at 252 m/s with a frequency of 28 Hz. What is its wavelength?

    λ = ?f = 28 Hzv = 252 m/sv = f × λ
  11. 15

    A wave has a frequency of 12 Hz and a wavelength of 7 m. What is its speed? (v = fλ)

    λ = 7 mf = 12 Hzv = ?v = f × λ
  12. 16

    A wave travels at 266 m/s with a wavelength of 14 m. What is its frequency?

    λ = 14 mf = ?v = 266 m/sv = f × λ

★ Challenge corner for fast finishers

You are in a closed room with a candle, a match and a lamp. What do you light first?

How did I do?

Teacher's comments

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

Answer key (click to show)
  1. 1.crest
  2. 2.trough
  3. 3.wavelength
  4. 4.amplitude
  5. 5.17 m
  6. 6.43 Hz
  7. 7.14 m
  8. 8.225 m/s
  9. 9.35 m/s
  10. 10.56 m/s
  11. 11.121 m/s
  12. 12.47 Hz
  13. 13.270 m/s
  14. 14.9 m
  15. 15.84 m/s
  16. 16.19 Hz
  17. ★the match (challenge corner)

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