Oscilloscope
You can interpret and explain sound waves shown on an oscilloscope.
Oscilloscope
You can interpret and explain sound waves shown on an oscilloscope.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- An oscilloscope is a displacement-time graph of a wave
- Connected to a microphone, an oscilloscope shows a displacement-time graph of a sound wave
- The distance between two wave crests on an oscilloscope’s graph is equal to the period of the wave
- The time period is measured most accurately by measuring the time for, say, 10 waves and dividing time by 10
- The bigger the amplitude of a sound wave, the louder the sound
Keywords
Oscilloscope - an oscilloscope is a piece of equipment that can display a representation of a sound wave.
Displacement-time graph - a displacement-time graph shows how the displacement of one part of a wave changes as the wave moves forward.
Period - the period of a wave is the time for one complete oscillation.
Frequency - the frequency of a wave is the number of complete oscillations in one second.
Loudness - the loudness of a sound wave is a measure of how loud it is.
Common misconception
The distance between two crests of an oscilloscope graph is equal to one wavelength.
Emphasise the need to read scales of graphs first and that the horizontal scale of an oscilloscope graph is time.
To help you plan your year 10 physics lesson on: Oscilloscope, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 physics lesson on: Oscilloscope, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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Explore more key stage 4 physics lessons from the Measuring waves unit, dive into the full secondary physics curriculum, or learn more about lesson planning.
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Starter quiz
6 Questions
Exit quiz
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