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Does Hooke's Law apply? AQA Physics A level

Does Hooke' Law apply when the graph does not go through the origin?

(this question is referring to a slinky hung from a ceiling)

Reply 1

Stonebridge

It depends what graph you have drawn.
Why would it not go through the origin?
Hooks'e Law applies when the extension is directly proportional to the tension.
If that's what happens to the spring, then Hooke's Law applies.
If you apply add 0.1kg, for example and it stretches 10cm, and you apply another 0.1kg and it stretches another 10cm then that is obeying Hooke's Law.

Reply 2

Kallisto

Entertainment Forum Helper

As explained Hooke's law always applies whenever proportionality between extension and tension of a spring is given, or in other words: when the spring is a constant. For the graph it means that is a linear curve.