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Cambridge IGCSE Physics practice

Paper 6 structured question: Turning effect of forces

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Turning effect of forces

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Paper 6Alternative to PracticalPractical2 marks

Analyzing results from a moments experiment.

Results Table

Results of Moments Experiment

The table shows the moments calculated for different weights and distances from the fulcrum.

Weight (N)Distance (m)Moment (Nm)
20.51
30.331
40.251
  1. a

    Explain why the beam remains in equilibrium when the moments are equal.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 6 structured question: Turning effect of forces

Paper 6Alternative to PracticalPractical1 marks

Method

Balanced Beam Experiment

In this experiment, a beam is balanced on a fulcrum with weights placed at various distances from the fulcrum. The aim is to show that when the moments on either side are equal, the beam remains horizontal.

Weight (N)Distance from Fulcrum (m)Moment (Nm)
20.51
30.331
40.251
  1. a

    State the independent variable in this experiment.

    Aim for approximately 1 distinct marking point.

    [1]