SAT Subject Physics Practice Question 159: Answer and Explanation

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Question: 159

5. Which one is NOT a vector?

A. Displacement
B. Velocity
C. Acceleration
D. Linear momentum
E. Kinetic energy

Correct Answer: E


Kinetic energy is a scalar, equal to one-half an object’s mass times the square of its speed. Like potential energy and work, kinetic energy does not have a direction associated with it.

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