If the amplitude of a wave is increased, what happens to its energy? (2019)

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Question: If the amplitude of a wave is increased, what happens to its energy? (2019)

Options:

Correct Answer: Increases

Exam Year: 2019

Solution:

The energy of a wave is proportional to the square of its amplitude. Therefore, if the amplitude increases, the energy also increases.

If the amplitude of a wave is increased, what happens to its energy? (2019)

If the amplitude of a wave is increased, what happens to its energy? (2019)

Step 1: Understand what amplitude means. Amplitude is the height of the wave from its rest position.
Step 2: Know that energy in a wave is related to its amplitude. Specifically, energy increases with the amplitude.
Step 3: Remember the relationship: Energy is proportional to the square of the amplitude. This means if you double the amplitude, the energy increases by four times.
Step 4: Conclude that if the amplitude of a wave increases, the energy of the wave also increases.

Wave Energy and Amplitude – The energy carried by a wave is related to its amplitude, specifically that energy is proportional to the square of the amplitude.