This question is about waves - Edexcel - GCSE Physics - Question 2 - 2022 - Paper 1
Question 2
This question is about waves.
(a) Figure 3 is a diagram of a water wave in a ripple tank.
direction water wave moves
crests of the water wave
P
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Worked Solution & Example Answer:This question is about waves - Edexcel - GCSE Physics - Question 2 - 2022 - Paper 1
Step 1
State the number of crests of the wave between P and Q.
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Answer
To determine the number of crests between points P and Q, we first count the visible crests in the diagram. In the provided figure, there are 6 crests between points P and Q.
Step 2
Calculate the wavelength of the water wave in Figure 3.
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Answer
The distance between P and Q is given as 42 cm. In the provided diagram, the wavelength (λ) can be calculated using the formula:
ext{wavelength} (λ) = rac{ ext{distance between P and Q}}{ ext{number of crests}}
