Explaining Hookes Law to a GCSE Physics Student

  • Context: High School 
  • Thread starter Thread starter cwilloughby21
  • Start date Start date
  • Tags Tags
    Hookes law Law
Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
6 replies · 84K views
cwilloughby21
Messages
2
Reaction score
0
I am a GCSE Physics Student I was hoping somebody would be able to help me when I have been studying Hookes law, we have only looked at a basic equation extension = extented length - original length. We have also look at how the increase in mass is directly proportional to the extension until plastic deformation occurs. I was then looking through my revsion notes and the equation F=-KX came up. I looked this up and found that
athematically, Hooke's law states that

F=-kx,

where

x is the displacement of the spring's end from its equilibrium position (a distance, in SI units: meters);
F is the restoring force exerted by the spring on that end (in SI units: N or kg·m/s2); and
k is a constant called the rate or spring constant (in SI units: N/m or kg/s2).

this makes no sense to me
Could somebody please explain this to me
thanks
 
Last edited:
Physics news on Phys.org
Hey, I'm in gr 12 so I don't know how much help I am, but I can try. Think about a spring for one second:

A spring can be stretched or compressed. When a spring is stretched, or compressed, it has POTENTIAL ELASIC ENERGY. When the spring is at eqilbrium postion, that means it has not been stretched or compressed therefore it has no potential elastic energy. K is just a constant ( a given number) that the spring has. Finally, x is the distance the springs been stretched or compressed FROM EQILBRIUM POSTION.

If you have anymore questions just ask, I hope this helped.
 
cwilloughby21 said:
this makes no sense to me
Why doesn't that make sense?
 
Oh yeah, Ee (which is potential elastic energry) = 1/2*k*x^2 this is formula you may use.
 
Anythin we could add Doc?
 
thanks hellohi that was really helpful :smile:
 
Np man, I'm glad it helped:)!