A trough is an elongated area of low pressure that can stretch for hundreds of miles. When observing an upper-level jet diagram, troughs appear as a “dip” or a “U-shape”. The tilt of the ...

Trough – the lowest point of a transverse ... Displacement-distance graphs are diagrams that can be used to compare the amplitude and wavelength of different waves. Displacement-distance graphs ...

It is often easiest to measure this from the crest (top) of one wave to the crest of the next wave or the trough (bottom ... count the number of waves in a diagram. You should be able to see ...