Exam-style question
Try this first
How does mass distribution affect the moment of inertia of an object?.
- A.It does not affect the moment of inertia.
- B.More mass further from the axis increases moment of inertia.
- C.More mass closer to the axis increases moment of inertia.
- D.Mass distribution only affects linear motion.
Model answer
What a good answer should say
- More mass further from the axis increases moment of inertia.
Explanation
Why this works
The moment of inertia depends on how mass is distributed relative to the axis of rotation; more mass located further from the axis increases the moment of inertia, making it harder to rotate.
Common mistake
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