Wave Definitions - Crest and Trough

[Peter G.]

Hi,

I have a test on the definitions of some terms. I was wondering whether the crest is the highest point in a wave or any point above the undisturbed position. And, also, whether the trough is the lowest point or any point under the undisturbed position.

Thanks,
Peter G.

 

[kuruman]

Yes, the crest is the highest point and the trough is the lowest point. The amplitude is half the distance between crest and trough.

 

[Peter G.]

Thanks for the quick response! Would you mind checking some of my other definitions?

Rarefaction: an area of decrease in density and pressure
Compression: an area of increase in density and pressure

Wave speed: The speed at which a wave travels - the product of wavelength and frequency

Wave intensity: A measure of energy flux averaged over a period of time - energy per unit area per unit time

Thanks once again,
Peter G.

 

[kuruman]

Looks good.