How would you describe primary waves? These are waves that_____.
A. travel through a vacuum
B. cause rock particles to vibrate
C. travel the slowest and cause the largest destruction
D. travel the fastest and cause rock material to move back and forth
A. travel through a vacuum
B. cause rock particles to vibrate
C. travel the slowest and cause the largest destruction
D. travel the fastest and cause rock material to move back and forth
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ANSWER:
D. travel the fastest and can cause rock material to move back and forth.
Answer:
D.
Explanation:
The P-wave (primary or pressure wave) is a fast-moving energy pulse that flows through the earth and liquids. It compresses and expands the ground, causing it to move backwards and forwards. The S-wave (secondary or shear wave) travels slower, with a swaying, rolling action that shakes the ground perpendicular to the wave's direction.