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Hookes lawby rons49
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#1
Oct2711, 09:40 AM

P: 2

im having bother writing the conlcusion for hookes law experiment, can any one help or point me in the right direction ????



#2
Oct2711, 09:43 AM

P: 1,084

What is hookes law? Are there limitations of hookes law?



#3
Oct2711, 09:50 AM

P: 2

hooke's law states that spring extension is in direct proportion to the load applied, within the elastic limit of the spring F = KX
F is the force applied to the spring in newtons (N) k is the spring constant measured in newtons per meter (N/m) x is the distance the spring is stretched from its equilibrium position in meters (m) 


#4
Oct2711, 09:59 AM

P: 1,084

Hookes law
so now relate that definition of hooke's law to your hypothesis and your observations. Mention its limitations.



#5
Oct2711, 10:16 AM

P: 346

Analyse the relationship between the conclusion drawn from your data and Hooke's law to verify its validity. Also, is there any anomalies? Do they indicate limitations of Hooke's Law?



#6
Oct2711, 01:46 PM

P: 112

I recently finished my first course in mechanics (or maybe I should call it physics course A, however...) but we also talked a bit about Hooke's Law. Unfortunately my teacher wasn't a "real" teacher in physics (actually he was a teacher of Mechanical engineering) and it doesn't look like we learnt the "real" Hooke's law, can anyone explain to me what this is then in simple terms?:
σ = Eε My teacher told us that this (^) was hooke's law. A quick look on wikipedia shows F=kx, but also I can find σ = Eε if I scroll down a bit. I know that sigma is the stress caused on a certain area (like the area of the cable holding up an elevator), E is the elastic modulus of a certain material, and epsilon, umm I don't know the word for it in english but I know what it is. :) Thanks in advance. 


#7
Oct2711, 01:58 PM

P: 1,084

F = kx is an equation of motion. Your σ = Eε seems to be more of a definition of materials.



#8
Oct2711, 02:51 PM

P: 1,970

E is a material constant (Young's modulus). F=kx applies to a spring or any elastic object. Here k is a constant of the object and not of just the material. Springs made from the same material may have different values of k, depending on size and shape. 


#9
Oct2811, 02:53 AM

P: 112

Ahhh! Thanks nasu for the good explanation, also I've noticed these "physic" words differ a lot from language to language :b however, big thanks!



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