The following diagram gives the formula for Hooke's Law: force, spring constant, extension.

State the difference between elastic and inelastic deformations.

Calculate the force needed to stretch or compress an object.

Describe the energy transfers taking place when an elastic object undergoes stretching, compression or bending.

Example:

Calculate the force required to extend a spring by 0.04 metres. The spring constant is 200N/m.

Elasticity is a measure of an objects ability to resume its original sahpe after being stretched or compressed.

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