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A4.3 - Turning Forces (Moments)

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✅EvaluateQuestion 1 of 21

What is meant by the moment of a force?

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✅EvaluateQuestion 2 of 21

Which expression gives the moment of a force?

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✅EvaluateQuestion 3 of 21

What is the SI unit of moment?

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✅EvaluateQuestion 4 of 21

Which point is the pivot of a door?

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✅EvaluateQuestion 5 of 21

Which tool works mainly by turning effect?

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✅EvaluateQuestion 6 of 21

Which lever has the fulcrum between the effort and the load?

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✅EvaluateQuestion 7 of 21

Which direction is opposite to clockwise?

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✅EvaluateQuestion 8 of 21

Why is it easier to open a door by pushing near the handle?

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✅EvaluateQuestion 9 of 21

A force of 5 N acts 0.4 m from a pivot. What is the moment produced?

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✅EvaluateQuestion 10 of 21

When an object is in rotational equilibrium, which condition is true?

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✅EvaluateQuestion 11 of 21

Which factor does NOT affect the moment of a force?

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✅EvaluateQuestion 12 of 21

Which is an example of a second-class lever?

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✅EvaluateQuestion 13 of 21

A child sits 2 m from the pivot on a seesaw. What happens if another child of equal weight sits 2 m on the opposite side?

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✅EvaluateQuestion 14 of 21

Which distance is used when calculating a moment?

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✅EvaluateQuestion 15 of 21

A force of 10 N acts 0.2 m from a pivot clockwise. What anticlockwise force is needed at 0.5 m to balance it?

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✅EvaluateQuestion 16 of 21

Why do mechanics prefer long spanners instead of short ones?

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✅EvaluateQuestion 17 of 21

Two unequal forces act on a beam but it remains balanced. What must be true?

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✅EvaluateQuestion 18 of 21

A seesaw balances when a 300 N child sits 1 m from the pivot. Where must a 200 N child sit on the other side?

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✅EvaluateQuestion 19 of 21

Which statement about third-class levers is correct?

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✅EvaluateQuestion 20 of 21

Which action would reduce the moment produced by a force?

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✅EvaluateQuestion 21 of 21

A uniform beam is balanced on a pivot at its centre. What can be said about the moments due to its weight?

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✅EvaluateQuestion 1 of 21

What is meant by the moment of a force?

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