Physics GCSE
crossing a boundary
What crossing a boundary means in Physics GCSE, as defined for AQA.
Definition of crossing a boundary
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Reference: AQA
When a sound wave crosses from one medium into another, its frequency does not change, because the frequency is fixed by the source that made it.
Topics that use crossing a boundary
- Properties of waves (AQA GCSE)
Related terms
- amplitude
- displacement
- equivalent points
- Frequency
- hertz
- longitudinal wave
- measuring many waves
- measuring wavelength and frequency
Using crossing a boundary in the exam
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