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# Hooke's Law

Hooke's Law - credit must go to Sarchy Ristich
by

## Tom Mills

on 13 December 2012

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#### Transcript of Hooke's Law

Hooke's Law U.Q.: What is Hooke's Law and how can we apply it to everyday life? AOI: HI (Human Ingenuity)
Env (Environment) IB learner profile:
Inquirers
Knowledgeable
Thinkers Robert Hooke Born in the year of 1635 (Freshwater, Isle of Wight) Became the greatest experimental scientist Among many other things Hooke invented universal joint and the first prototype of respirator Son of a churchman Highly respected in the world of Biology Died in 1703 Argh... The Hooke Law states that the extension of a spring is in direct proportion with the load applied to it. This means as the
the spring e x t e n d s . F is the force that
is exerted by the spring
on that end,
measured in N k is a constant
called the rate or
spring constant
measured in N/m x is the change
of displacement of the
spring's end
from its equilibrium
position Elastic potential
energy Potential energy stored as the
result of the stretching of
the spring. What is the value
of the constant k? The constant K depends on
the material from which it is
equal
to the
work
done
to stretch
the
spring and
the
distance
stretched which
depends
upon
the spring
constant k Some materials are elastic... And some materials are not elastic ... meaning that, after being under some force,
they can bounce back to normal... meaning that they cannot return to their previous state.... k X F E PE = 0 PE = kx 1 ___ 2 2 Graph of Hooke's Law Hooke's Law is being obeyed Linear function Applications in
real life Range - calculated by the formula y=-kx
Domain - an element of
X-intercept - (0.0)
Y-intercept - (0.0) ______ y - y x - x 1 1 2 2 R Trampolines the gradient determines
the slope of the function What if the graph is curved? but, what if... Rubber bands Beds Diving boards Pens Playground
toys Rock climbing ropes How is hooke's law applied to every day life, (N/A)
Hooke's law application in daily life, (N/A)