GCSE Questions: Waves
Bats use the reflection of high pitched sound waves to determine the position of objects. The diagram below shows a bat and an insect flying in front of the bat.
(a) What determines the pitch of a sound wave? [1 mark]
(b) State the name given to reflected sound waves. [1 mark]
c) The bat emits sound waves with a range of wavelengths. Some of the sound waves will be diffracted by the insect.
(d) The bat emits a sound wave with a frequency of 25.0 kHz and a wavelength of 0.0136 metres.
(e) Sound waves are longitudinal.
(Total: 9 marks)