By what factor should the length of a simple pendulum be changed if the period of vibration were to be two times?

A) 1/4
B) 0.5
C) 2
D) 4
E) 1.0

Name: By what factor should the length of a simple pendulum be changed if the period of vibration were to be two times? A) 1/4 B) 0.5 C) 2 D) 4 E) 1.0
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Question

By what factor should the length of a simple pendulum be changed if the period of vibration were to be two times?
​
A) 1/4
B) 0.5
C) 2
D) 4
E) ​1.0

Quizplus · Accepted Answer

The period of a simple pendulum is proportional to the square root of its length. To double the period, the length must be increased by a factor of 4 (since 2^2 = 4).

By What Factor Should the Length of a Simple Pendulum