Deformation and Hooke’s Law Flashcards

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What is deformation?

Deformation is the change in shape of elastic objects when a force is applied.

What happens when an elastic object is pulled or squashed?

When pulled, it stretches; when squashed, it compresses.

What is Hooke’s Law?

Hooke’s Law states that the extension of an elastic object is directly proportional to the force applied to it.

How do you calculate the extension of a spring?

Extension = (Length of spring before adding mass) – (Length of spring after adding mass)

What will a force-extension graph tell us about the relationship between force and extension?

A force-extension graph shows that the force applied is directly proportional to the extension, represented by a straight line passing through the origin.

What does the area under a force-extension curve represent?

The area under the curve represents the work done, or the energy required to stretch the spring, measured in joules (J).

Revision Notes
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