The speed at which wave crests propagate through a medium is called what?

The speed at which wave crests propagate through a medium is called what?

• A. Velocity
• B. Frequency
• C. Wavelength
• D. Amplitude

Answer: (A)

Wave propagation speed is the rate at which the wave pattern, such as crests, moves through a medium. This is called velocity. It’s the quantity that tells you how fast the fronts travel, and it can be related to frequency and wavelength by v = fλ. Frequency measures how often crests pass a point each second, not how fast they move. Wavelength is the distance between successive crests, which influences speed when the frequency is fixed. Amplitude is about the crest height and the energy of the wave, not the propagation speed.

Wave propagation speed is the rate at which the wave pattern, such as crests, moves through a medium. This is called velocity. It’s the quantity that tells you how fast the fronts travel, and it can be related to frequency and wavelength by v = fλ. Frequency measures how often crests pass a point each second, not how fast they move. Wavelength is the distance between successive crests, which influences speed when the frequency is fixed. Amplitude is about the crest height and the energy of the wave, not the propagation speed.