We investigate Hooke's Law as we explore the concept of spring potential energy. We also examine how to find this energy mathematically and graphically.
Segment 4G: Spring Potential Energy We investigate Hooke's Law as we explore the concept of spring potential energy. We also examine how to find this energy mathematically and graphically.Premiere Date: July 24, 2018 | Runtime: 00:07:52
-Review the concept of spring force and use that knowledge to discuss how it is related to the potential energy stored in a spring.
-Define spring potential energy qualitatively and quantitatively.
-Review the law of conservation of energy and show how spring potential energy relates to it.
-Differentiate between Hookean and non-Hookean springs.
-Students will observe the relationships learned on a spring force versus displacement graph and use it to find spring potential energy.
equilibrium position - an object at its natural position, where it has no tendency to move and the net force acting on it is zero.
Hookean Springs - when the force needed to compress or stretch a spring by a given displacement is linear and abides by Hooke’s Law.
Non-Hookean Springs - when the force needed to compress or stretch a spring by a given displacement is not linear and does not abide by Hooke’s Law.
spring constant (k) - a characteristic of a spring that is equal to the force exerted on it divided by the displacement the spring stretches; the unit is a newton per meter (N/m).
spring force (FS) - this force is equal to the spring constant for a given spring multiplied by the displacement the spring is stretched from the equilibrium position.
spring potential energy (PES) - the amount of stored energy in a spring; is equal to one half times the spring constant times the displacement the spring is stretched from the equilibrium position, squared.
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