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5.1 Wave behaviour

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Question 1
F

A loudspeaker produces a sound wave with a frequency of 170 Hz.

The wavelength of the sound wave in air is 2.0 m.

a.

Use the equation: wave speed=frequency×wavelength\text{wave speed} = \text{frequency} \times \text{wavelength}wave speed=frequency×wavelength

Calculate the speed of the sound wave. Give the unit.

[3]
b.

Sound waves in air are longitudinal waves.

Describe how the particles of air move as the sound wave passes.

[2]
c.

The frequency of the sound is increased. The speed of the sound stays the same.

State what happens to the wavelength of the sound.

[1]
Markscheme

5.1 Wave behaviour Questions

  1. GCSE
  2. /Physics
  3. /5.1 Wave behaviour

52 exam-style questions on OCR GCSE Physics 5.1 Wave behaviour, covering 5.1.1 Describing wave motion, 5.1.2 Wavelength and frequency, 5.1.3 Wave speed, frequency and wavelength, 5.1.4 Wave speed problems, 5.1.5 Transverse and longitudinal waves, 5.1.6 Sound waves crossing between media, 5.1.7 Reflection, transmission and absorption at interfaces, 5.1.8 Sound waves and vibrations in solids, 5.1.9 Frequency range and human hearing, 5.1.10 Modelling waves with water ripples and sound, and 5.1.11 Evidence that the wave travels, not the medium. Each one has a worked solution and a mark scheme showing where the marks go.

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