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A4.5 - Stretching Materials

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✅EvaluateQuestion 1 of 21

What is meant by the extension of a spring?

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✅EvaluateQuestion 2 of 21

Which instrument is commonly used to stretch a spiral spring in experiments?

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✅EvaluateQuestion 3 of 21

Which unit is used to measure force applied to a spring?

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✅EvaluateQuestion 4 of 21

Hooke’s law applies when

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✅EvaluateQuestion 5 of 21

Which material best obeys Hooke’s law?

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✅EvaluateQuestion 6 of 21

What happens to a spring when the elastic limit is exceeded?

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✅EvaluateQuestion 7 of 21

Which quantity is plotted on the y-axis of an extension–force graph?

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✅EvaluateQuestion 8 of 21

Why are loads added gradually to a spiral spring during an experiment?

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✅EvaluateQuestion 9 of 21

A spring has an extension of 4 cm when a force of 2 N is applied. What happens if the force is doubled within the elastic limit?

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✅EvaluateQuestion 10 of 21

What does the straight-line region of an extension–force graph show?

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✅EvaluateQuestion 11 of 21

What is the spring constant (k) a measure of?

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✅EvaluateQuestion 12 of 21

Which equation relates force, extension and spring constant?

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✅EvaluateQuestion 13 of 21

How can a spring be used to find the weight of an object?

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✅EvaluateQuestion 14 of 21

Why do elastic bands not obey Hooke’s law well?

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✅EvaluateQuestion 15 of 21

A spring has a spring constant of 40 N m⁻¹. What force produces an extension of 0.25 m?

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✅EvaluateQuestion 16 of 21

A spring stretches 2 cm for a force of 1 N. What is its spring constant?

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✅EvaluateQuestion 17 of 21

Which change would increase the extension of a spring for the same force?

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✅EvaluateQuestion 18 of 21

On an extension–force graph, what does the gradient represent?

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✅EvaluateQuestion 19 of 21

A spring balance works because

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✅EvaluateQuestion 20 of 21

Why should the elastic limit not be exceeded in weighing instruments?

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✅EvaluateQuestion 21 of 21

Two springs are compared. Spring A has a larger spring constant than Spring B. Which is true?

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✅EvaluateQuestion 1 of 21

What is meant by the extension of a spring?

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