Question

1. which statement provides evidence that wave b has more energy than wave a?

the wavelength of wave b is double the wavelength of wave a.
the amplitude of wave b is half the amplitude of wave a.
the frequency of wave b is twice as high as the frequency of wave a.
the amplitude of wave b is double the amplitude of wave a.

Explanation:

Wave energy is related to amplitude (energy is proportional to the square of amplitude). If Wave B has double the amplitude of Wave A, it has more energy. Wavelength and frequency - wavelength doesn't directly indicate energy (energy depends on amplitude and frequency, but here amplitude difference is key), and frequency being twice doesn't align with the graph's visual (waves seem to have similar frequency). The "half amplitude" option would mean less energy for B, so the double - amplitude statement is correct.

Answer:

The option "The amplitude of Wave B is double the amplitude of Wave A." (the fourth option)