alleryStart learning →The only two things that affect the period of a simple pendulum are gravity and its:
AIts length
BIts bob mass
CIts bob colour
DIts wire width
Answer & Solution
Correct answer: A. Its length
1. Intuition often suggests a heavier bob should swing differently.
2. The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity.
3. The movement of two pendulums will not differ at all because the mass of the bob has no effect on the motion of a simple pendulum.
4. That independence from mass is what makes the pendulum such a good clock.
_Source: OpenStax College Physics for AP(R) Courses 2e (CC BY 4.0), Ch 16 'Oscillatory Motion and Waves', sections 16.1-16.11_
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