4-WAV-03a

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Outcomes

  • Pupils can recall the hearing range of a human and determine whether a frequency lies within the range and understand that
  • Pupils understand that any sound wave with a frequency greater than 20kHz is known as ultrasound.
  • Pupils can recall different uses of ultrasound and can explain the idea of ultrasound scanning using an echo.
  • Pupils can describe how to measure the speed of sound using a clapping method and an electronic method.

Specification References

Starter

  • Carry out pupil hearing range experiment using speaker and signal generator. Pupils will probably bring up the The Mosquito at this point.

Main Body of Lesson

Plenary

Homework

Additional Information

Resources Required

  • Signal Generator
  • Speaker
  • Vacuum pump connected to Bell Jar

Textbook References

Website References

Skills Addressed

Safety/Hazards

Notes