27
QuizMultiple Choice

Unit Test — Unit test

Question 27 • 26-27 LISD TX-Physics B-CR (rev. 5/25)

As a pendulum moves closer to the equilibrium position, how do the velocity, acceleration, and force change?

Answer
A
The velocity decreases, the acceleration decreases, and the net force decreases.
B
The velocity increases, the acceleration decreases, and the net force decreases.
C
The velocity increases, the acceleration increases, and the net force decreases.
D
The velocity decreases, the acceleration increases, and the net force increases.

Explanation

As the pendulum swings toward equilibrium, gravity’s tangential component pulls it along its motion, so its velocity increases. The restoring component of gravity is proportional to how far the pendulum is from equilibrium, so the acceleration and restoring net force decrease as it gets closer. Thus, “the velocity increases, the acceleration decreases, and the net force decreases” is correct.

AI-written and checked against the verified answer.

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