Exam-style question
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What is the principle of moments in equilibrium?.
- A.The sum of clockwise moments equals the sum of anticlockwise moments.
- B.The total force acting on an object is zero.
- C.The weight of an object is balanced by the normal force.
- D.The distance from the pivot affects the force required.
Model answer
What a good answer should say
- The sum of clockwise moments equals the sum of anticlockwise moments.
Explanation
Why this works
In equilibrium, the principle of moments states that the total clockwise moments about a pivot must equal the total anticlockwise moments, ensuring the object remains balanced.
Common mistake
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