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MCAT Question A Day - 4/7/14 - Answer!

The period of a simple pendulum can be increased by

A.  increasing the length of the pendulum.
B.  decreasing the length of the pendulum.
C.  increasing the mass of the box.
D.  decreasing the mass of the box.

The correct answer is (A). The period T is equal to:


Thus, the period is directly proportional to the square root of the length. Any increase in L will produce an increase in T. The mass of the box does not influence the period.

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