Washington Comprehensive Assessment Of Science (WCAS) Grade 8 Practice Questions - Washington Comprehensive Assessment Of Science - Grade 8 Exam

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A 1,000-kg car accelerates from 10 meters per second to 20 meters per second. How does the car's kinetic energy change when its velocity doubles?

The kinetic energy quadruples (increases by 4 times). The kinetic energy doubles (increases by 2 times). The kinetic energy remains unchanged. The kinetic energy drops to zero.

Correct Answer:

The kinetic energy quadruples (increases by 4 times).

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