What is the horizontal distance between two waves, measured at a common point (crest to crest or trough to trough), called?

• Correct Answer: wavelength
• frequency
• linear
• absorption

Explanation: Seismic waves are just one type of wave. Sound and light also travel in waves. Every wave has a high point called a crest and a low point called a trough . The height of a wave from the center line to its crest is its amplitude . The horizontal distance between waves from crest to crest (or trough to trough) is its wavelength ( Figure below ).

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