Moments (AQA GCSE Physics): Quizzes

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Moments
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What is a moment?

A turning effect from force at a pivot

What is a pivot?

The fixed point where rotation happens

What is the formula for calculating a moment?

M=F×dM = F \times d

What is the unit for measuring moments?

Newton-metres (Nm)

How must distance be measured when calculating moments?

At right angles from the pivot

What is the principle of moments for balanced objects?

Sum of clockwise = sum of anticlockwise

Calculate the moment when a force of 5050 N acts 0.40.4 m from the pivot.

2020 Nm

Is a system balanced if clockwise moment is 300300 Nm and anticlockwise is 280280 Nm?

No, it is not balanced

A 3030 N weight at 0.20.2 m balances an unknown weight at 0.150.15 m. Find the unknown weight.

4040 N

A 100100 N force at unknown distance balances 5050 N at 0.60.6 m. Find the distance.

0.30.3 m

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