18. Waves & Sound

Which of the following best describes how light waves differ from mechanical waves?

Given two wave functions $a$ and $b$ with identical frequencies but different amplitudes, which statement can be made about waves $a$ and $b$?

Which type of wave requires a medium to travel?

For a water wave with a wave height of $3m$ and a wavelength of $7m$, what is the wave base (the depth below which water movement from the wave is negligible)?

For an echo to occur, what must happen to a $wave$ after it is produced?

In any transverse wave, the energy moves __________ to the particles of the medium.

Which of the following best describes the difference between the second sound wave and the first in terms of their wave functions?

Which form of energy is associated with vibrating waves traveling through a substance?

Which type of wave does not require a medium to travel through?

Which property is common to both transverse waves and longitudinal waves?

Which type of wave does not require a medium to travel through?

Which type of wave can travel slowly within the surface of a medium?

Given the wave functions $y=2\sin \left(3x\right)$, $y=5\sin \left(2x\right)$, and $y=1\sin \left(4x\right)$, which wave has the largest amplitude and which has the smallest amplitude?

What happens to the $amplitude$ of a $wave$ when it is acted upon by an external damping force?

In the context of wave functions, what is the physical significance when a wave's amplitude $A$ increases?