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Grade 11 · Science · Physics

11th grade Wave speed, frequency and wavelength worksheet

6 printable versionsBuilding Confidence10 questions · answer keyFree · no account

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Wave speed, frequency and wavelength

Grade 11 Science Worksheet - Building Confidence

NameDate

Circle the best answer, or write your answer on the line.

  1. Water-tank ripples have a frequency of 4 Hz and a wavelength of 0.03 m. What is its speed, Ari?

  2. A rope wave has a frequency of 2.5 Hz and a wavelength of 1.2 m. What is its speed, Bo?

  3. Read this first

    Wave diagram (example data)

    Ripples in a water tank seen from the side. A ruler shows the crests 0.04 m apart. A clock shows 10 crests passing a marker in 2 s.

  4. In the wave diagram, what is the ripples' wavelength, Jun?

    • 0.04 m
    • 0.4 m
    • 10 m
  5. In the wave diagram, how fast do the ripples travel, Luz?

    • 0.2 m/s
    • 125 m/s
    • 5.04 m/s
  6. A wave has a frequency of 5 Hz. What is its period, Milo?

    • 0.2 s
    • 5 s
    • 2 s
  7. A wave's period is 0.5 s. What is its frequency, Noah?

    • 2 Hz
    • 5 Hz
    • 0.5 Hz
  8. What does a frequency of 1 Hz mean, Pia?

    • The wave moves at 1 m/s
    • One wave passes each second
    • Each wave is 1 m long from crest to crest
  9. What sets the speed of a wave on a rope, Ren?

    • How fast the hand shakes it
    • The rope itself, through its tension and mass
    • How tall the waves are
  10. A hand shakes the same rope faster, at the same tension. What happens to the wavelength, Tala?

    • It gets longer
    • It gets shorter
    • It stays the same, but the waves go faster
  11. What sets the frequency of a wave, Zee?

    • The source that makes it
    • Its wavelength alone
    • The medium it travels through
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11th grade Wave speed, frequency and wavelength worksheet – printable
Print: 123456

About this worksheet

Wave speed, frequency and wavelength. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

  • I can use v = fλ and T = 1 ÷ f, reading λ from a ruler and f from a clock.
  • I can find the wavelength of sound (343.3 m/s in 20 °C air) and of light (c = 299,792,458 m/s, NIST), and compare speeds from a sourced table.
  • I can explain that the medium sets the speed and the source sets the frequency. Shaking a rope faster shortens the waves without speeding them up, and a wave entering a new medium keeps its frequency while its speed and wavelength change.
  • I can use flash-and-bang delays, ripple-tank data, and the same speed c for all electromagnetic waves.

Standard: HS-PS4-1

Words to know

frequency (f): Waves passing each second, in hertz (Hz)

period (T): The time for one wave: T = 1 ÷ f

wavelength (λ): The distance from one crest to the next

wave speed (v): How fast the wave travels: v = fλ

medium: The material a wave travels through; it sets the speed

Common mistakes

Your child divided. Wave speed is frequency × wavelength: the waves made each second times the length of each.

Your child thought shaking faster makes the wave faster. The medium sets the speed; shaking faster makes shorter waves.

Your child multiplied. Wavelength is speed ÷ frequency.

Questions parents ask

What is the most common mistake with wave speed, frequency and wavelength?

Your child divided. Wave speed is frequency × wavelength: the waves made each second times the length of each.

Are these 11th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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