Quelpr
5 marksProperties of Waves

CAPE Physics Unit 1 · 2003 · Paper 2 · Question 6(a)(i)

A sound wave is a longitudinal wave with a frequency of 500 Hz and travels at 340 m s⁻¹.

Define the terms 'longitudinal wave' and 'frequency'.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 6(a)(ii)Sketch and label graphs to represent displacement against position for the wave above.[1 mark]
  2. 6(a)(ii)b)Sketch and label graphs to represent displacement against time, for the wave above.[1 mark]
  3. 6(a)(iii)For EACH graph drawn in (a)(ii) insert the scale on the horizontal axis.[1 mark]
  4. 6(b)(i)Explain the terms 'intensity of sound' and 'threshold of hearing'. State the intensity level, in dB, for the threshold of hearing.[8 marks]
  5. 6(b)(ii)a)Deduce the intensity of the sound from a motor-bike where the intensity level is 80 dB.[1 mark]
  6. 6(b)(ii)b)A person's ear collects sound from an effective area of 0.4 cm². What is the power incident on the ear at the threshold of hearing?[1 mark]
  7. 6(c)Calculate the lengths at which a tuning fork of 280 Hz would produce resonance. Ignore end connections. (Speed of sound = 340 m s⁻¹)[4 marks]
  8. 6(d)For a string of mass 1.6 x 10⁻³ kg and length 0.80 m find its fundamental frequency when a mass of 1 kg is hung from its end.[3 marks]

More practice: the rest of this paper · more Properties of Waves questions · all CAPE Physics Unit 1 past papers