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5.4 Moments, levers and gears

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Question 12

A lightweight horizontal arm in a museum display is marked with a scale. The arm is pivoted at the 60 cm mark.

A model hangs from the 20 cm mark and exerts a downward force of 3.0 N. A replacement counterweight will hang from the 90 cm mark. The weight of the arm can be ignored.

Four replacement counterweights are available. They exert downward forces of 2.0 N, 3.0 N, 4.0 N and 9.0 N.

Which replacement counterweight will balance the arm?

[1]
A

The 3.0 N counterweight

B

The 4.0 N counterweight

C

The 9.0 N counterweight

D

The 2.0 N counterweight

Markscheme

5.4 Moments, levers and gears Questions

  1. GCSE
  2. /Physics
  3. /5.4 Moments, levers and gears

124 exam-style questions on AQA GCSE Physics 5.4 Moments, levers and gears, covering 5.4 Moments, levers and gears. Each one has a worked solution and a mark scheme showing where the marks go.

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