Exam-style question
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What is the amplitude of a wave?.
- A.The distance from the rest position to the crest
- B.The total distance of one complete wave cycle
- C.The time taken for one wave to pass a point
- D.The number of waves passing a point per second
Model answer
What a good answer should say
- The distance from the rest position to the crest
Explanation
Why this works
Amplitude is defined as the maximum displacement of a wave from its rest position, indicating the energy carried by the wave.
Common mistake
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