Dual Enrollment Earth Science Practice Test

The S-waves of an earthquake are analogous to ocean waves. Is this statement true or false?

True False Not related Sometimes

Correct Answer:

True

Explanation:

S-waves are shear waves, so the particles of the rock move perpendicular to the direction the wave is traveling. This transverse motion is why S-waves are often likened to waves that move a medium side-to-side, similar to how a rope or string completes a transverse wave when plucked. The statement is true because the defining feature of S-waves is this perpendicular, shear motion through solids. Ocean surface waves also involve motion of the water, but their particles trace circular or elliptical paths rather than moving strictly perpendicular to the travel direction; the key point for S-waves is the transverse displacement, which is why the comparison to transverse waves helps, and the statement holds.

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