# Hook's law lab

1. Oct 6, 2004

### ramat

hi, i am just having some problems with understanding the hook's law lab, if anyone has a "hook's law" can you please post it or you can email it to me. here is my address. dino_679@hotmail.com Thanks i will really appreciate it.
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2. Oct 7, 2004

### Gokul43201

Staff Emeritus
3. Oct 7, 2004

### chroot

Staff Emeritus
ramat,

Hooke's Law just says the force produced by a spring is proportional to the distance it is stretched or compressed. If you double the amount of stretch, for example, you double the amount of force it produces.

- Warren

4. Dec 8, 2004

### Jose6a

Hook's law

I'm having problems looking for a good example on how to demonstrate hook's law, i'll be more than thankful if someone can help me with that

5. Dec 8, 2004

### HallsofIvy

Staff Emeritus
One way: hang the spring vertically, put a weight on it and measure the extension. Put twice the weight on it and measure the weight again.

Another way: put the spring horizontally, attach a scale to it (one of those that you hang a weight to) and pull. The scale will show the force and you can measure the extension.

6. Dec 8, 2004

### dextercioby

Hooke's law is part of what we commonly call "experimental phyics".Mathematical formulatios of the physical laws are proven by experimental methods only.In the case of the Hooke law,just take a spring and various masses and place them in the gravitational field by hanging one end of the string on a support and at the other end put the weights.Take a ruler and measure if the strings's lenght doubles as u put 2 different weights one 2 times heavier than the other.If it's so,u have just proven Robert Hooke's law.
Force (magnitude) measuring apparatus called "dynamometers" function according to Hooke's law.

Daniel.
PS.I hope u weren't asking about the generalized Hooke's law (which has nothing to do actually with Robert Hooke)...Those are messy tensors...

EDIT:U have more versions of basically the same thing.The important thing is that u got the right picture.