A-LevelPhysicsWork, energy and power9702/12 · Oct/Nov 2014 · Q211 Mark

A rubber band is stretched by hanging weights on it and the force-extension graph is plotted from the results. [Figure 21.1] What is the best estimate of the strain energy stored in the rubber band when it is extended 30 cm?

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A1.8 J

B2.6 J

C5.1 J

D200 J

✓ Correct answer

A: 1.8 J

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Topic: Work, energy and power, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2014 Paper 1 Variant 2, question 21.

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