(a) Figure 11 shows a large tank of water - Edexcel - GCSE Physics - Question 6 - 2020 - Paper 1
Question 6
(a) Figure 11 shows a large tank of water.
(i) Water waves are transverse waves.
Give another example of a transverse wave.
(ii) Figure 12 shows a side view of pa... show full transcript
Worked Solution & Example Answer:(a) Figure 11 shows a large tank of water - Edexcel - GCSE Physics - Question 6 - 2020 - Paper 1
Step 1
Give another example of a transverse wave.
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Answer
An example of a transverse wave is a light wave. Other possible answers include radio waves or X-rays.
Step 2
Calculate the wavelength of the wave.
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Answer
To find the wavelength, we need to use the formula:
Draw arrows on Figure 13 to show how the rock at R moves when the seismic wave passes through R.
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Answer
The arrows should be drawn in the direction of the wave propagation shown by the seismic wave. They will indicate how the rock at R moves in the same direction as the wave.
Step 5
Calculate the wavelength of the seismic wave in metres.
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So, the wavelength of the seismic wave is approximately 580 m.
Step 6
Explain why this would not be a suitable method for measuring the frequency of the seismic wave in part (b)(ii).
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Answer
This method would not be suitable because seismic waves cannot be seen as they travel underground. Additionally, the person may not be able to accurately count the peaks of the waves due to the rapid movement of the seismic waves, resulting in a false count. Lastly, the frequency of seismic waves may vary, making it challenging to measure accurately in the same way as surface waves.
