Amplitude, power, and intensity tend to be ______, therefore, when intensity increases power and amplitude also increase.

Amplitude, power, and intensity tend to be ______, therefore, when intensity increases power and amplitude also increase.

• A. Inversely related
• B. Directly related
• C. Unrelated
• D. Randomly related

Answer: (B)

The main idea is that these wave properties increase together because they all reflect energy transport in a wave. Intensity is the power carried per unit area, so when more energy flows through, the wave tends to have a larger amplitude to deliver that energy. In many simple wave models, power is proportional to amplitude squared, and intensity is power per area, which means higher intensity comes with greater amplitude and higher power. So they share a positive relationship, not an inverse, unrelated, or random one.

The main idea is that these wave properties increase together because they all reflect energy transport in a wave. Intensity is the power carried per unit area, so when more energy flows through, the wave tends to have a larger amplitude to deliver that energy. In many simple wave models, power is proportional to amplitude squared, and intensity is power per area, which means higher intensity comes with greater amplitude and higher power. So they share a positive relationship, not an inverse, unrelated, or random one.