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Edexcel IGCSE Physics 3 29p Loudness and Amplitude Questions

Compare oscilloscope traces to see how changing the source's vibration amplitude changes sound loudness, then use the amplitude difference to draw a quieter trace.

Syllabus
First assessment 2019
Course
Physics 4PH1

Exam points

  • Represent a quieter sound by drawing an oscilloscope trace with lower amplitude.

Edexcel IGCSE Physics 3 29p Loudness and Amplitude Questions question 1

[Maximum number: 2]

This question is about sound waves.

An oscilloscope can be used to display a sound wave.

The diagram shows the trace on an oscilloscope screen when a sound wave is detected.

Figure for Question Edexcel IGCSE Physics 3 29p Loudness and Amplitude Questions question 1 — Edexcel IGCSE Physics

On the screen, draw the trace for a quieter sound wave with a lower frequency.

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