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Cambridge IGCSE Physics practice

Paper 6 structured question: Effects of forces

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Effects of forces

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Paper 6Alternative to PracticalPractical1 marks

Investigating the properties of an elastic material.

Method

Method for Investigating Load-Extension

A spring is attached to a stand. Weights are added incrementally to the spring, and the extension is measured after each weight is added.

Weight (N)Extension (cm)
00
12
24
36
48
  1. a

    State the independent variable in this experiment.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 6 structured question: Effects of forces

Paper 6Alternative to PracticalPractical4 marks

Results Table

Results of Load-Extension Experiment

The table shows the relationship between load and extension for a rubber band.

Load (N)Extension (cm)
00
13
26
310
415
  1. a

    Describe the trend shown in the results table.

    Aim for approximately 2 distinct marking points.

    [2]
  2. b

    Explain why it is important to repeat measurements in this experiment.

    Aim for approximately 2 distinct marking points.

    [2]