1871133
Her teacher asks her to change the wave to show a greater energy transfer. What can the student do?
a
She can increase the frequency of the wave.
b
She can decrease the amplitude of the wave.
c
She can increase the wavelength of the wave.
d
She can decrease the frequency of the wave.
b
She can decrease the amplitude of the wave.
To determine the answer, we need to understand the factors that affect energy transfer in a wave. The energy of a wave is proportional to its amplitude, frequency, and wavelength.
Option a: Increasing the frequency of the wave will not directly increase the energy transfer. The frequency only determines the number of complete cycles of the wave occurring per second, not the actual energy being transferred.
Option b: Decreasing the amplitude of the wave will reduce the energy transfer. Amplitude is directly related to the energy of a wave, so decreasing it will result in lower energy transfer.
Option c: Increasing the wavelength of the wave will also decrease the energy transfer. Wavelength and energy are inversely proportional; a longer wavelength will mean less energy transfer.
Option d: Decreasing the frequency of the wave will not increase the energy transfer. As mentioned earlier, frequency is not directly related to energy transfer.
Therefore, the correct answer is b. The student can decrease the amplitude of the wave to show a greater energy transfer.