Sciences - Hooke's law

What is Hooke's law. I need to do coursework on it and im in yr 9. HELP!!!

Hooke's law describes how the extension of a spring is affected by the load applied to it. Often you will see it written as . Where is the displacment (how far it has extended from where it normally sits - the equilibrium), is the "spring constant" and is the restoring force exerted on the spring on the displaced end.
01 July 2011
Have you got anymore info as i need to do about a a4 page just write what you know and i will write it in my own words. Thaks, much help
01 July 2011
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