GCSE Physics – The speed of waves

Last updated: 27/05/2020
OCR 21st Century GCSE Science – Combined science higher Radiation and waves GCSE Physics – The speed of waves

Learning Objectives

-I can describe how to measure the speed of waves
-I can recall the units needed for v = fλ
-I can rearrange v = fλ
-I can use v = fλ

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  1. Current
  2. Review
  3. Answered

  1. How do we measure the speed of water ripples?

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  2. What type of light is used when measuring water ripples?

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  3. What produces ripples in a water tank?

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  4. What frequency do the water ripples have?

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  5. What is the wavelength equal to in a ripple tank?

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  6. What happens when you hit a metal rod with a hammer?

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  7. What do the waves on a rod produce?

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  8. What apparatus can we use to measure the speed of sound in air?

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  9. What do we do with the two microphones to measure the speed of sound in air?

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  10. When two microphones have an in phase oscilloscope reading, what is the distance between them?

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  11. Where do we place the speaker to measure the speed of sound in air?

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  12. A metal rod is hit and waves are produced in it, causing sound waves around the rod. What is true about the frequencies of the waves?

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  13. What is the frequency of sound in the speed of sound practical?

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  14. How do we change the strobe light to measure the frequency of water ripples?

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  15. What is the speed of sound in air approximately equal to?

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  16. What is the peak frequency?

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  17. What is the wave speed equation?

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  18. What is λ in the wave equation?

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  19. What is f in the wave equation?

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  20. What is v in the wave equation?

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  21. What are the units for wavelength?

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  22. What are the units for frequency?

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  23. What are the units for speed?

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  24. What is the speed of a wave that has a 1.2 m wavelength and a 2 Hz frequency?

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  25. What is the speed of a wave that has a 0.005 m wavelength and a 4000 Hz frequency?

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