Waves can be transverse or longitudinal. Complete the sentence to describe a longitudinal wave. In a longitudinal wave, the direction of vibration is ___ to the direction of propagation.

5(a)(ii)Wave Properties Wave BehaviourEasy1 mark

Give one example of a longitudinal wave.

5(b)(i)Wave Properties Wave BehaviourEasy2 marks

A vibrating rod produces a water wave in a ripple tank. The wavelength of the wave is 0.016 m. The wave is travelling at a speed of 0.12 m / s. Calculate the frequency of the wave. Give the unit.

Unit

5(b)(ii)Wave Properties Wave BehaviourEasy2 marks

The water wave travels from shallow water to deep water. Show what happens to the properties of the water wave. One has been done for you: the wavelength increases.

the frequency of the wave

the speed of the wave

5(c)(i)Diffraction Diffraction GratingsEasy1 mark

Figure 5.1 shows a ripple tank demonstrating a wave effect. The wave passes through a small gap in a barrier.

Figure 5.1, a plan view of a ripple tank: straight wavefronts from a vibrating rod travel towards a barrier with a small gap in it and the wavefronts beyond the gap are curved; the vibrating rod, barrier, gap and direction of propagation are labelled

State the name of the wave effect shown in Figure 5.1.

5(c)(ii)Diffraction Diffraction GratingsEasy2 marks

State two changes that each increase the curvature of the wavefronts as the wave passes through the gap.

Two answers required.