Moments and turning effects Quiz
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5 questions, one answer each
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1. What is the moment of a 50 N force acting at right angles 0.40 m from a pivot?
- A. 125 N m
- B. 90 N m
- C. 0.008 N m
- D. 20 N m
2. Which condition must be true for an object to be balanced?
- A. Total clockwise moment is greater than total anticlockwise moment
- B. Total clockwise moment = total anticlockwise moment
- C. The forces on both sides are equal
- D. The distances on both sides are equal
3. A 5.0 N weight hangs 0.20 m to the left of a pivot. At what distance on the right must a 2.0 N weight hang to balance it?
- A. 0.50 m
- B. 0.08 m
- C. 2.0 m
- D. 0.20 m
4. Which object is the most stable?
- A. One with a high centre of mass and a wide base
- B. One with a low centre of mass and a narrow base
- C. One with a low centre of mass and a wide base
- D. One with a high centre of mass and a narrow base
5. Why is a door handle placed far from the hinges?
- A. It makes the door heavier
- B. A larger distance from the pivot gives a larger moment for the same force
- C. A smaller distance gives a larger moment
- D. It increases the weight of the door