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Physics in Pogo Sticking

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Sara Booth

on 7 January 2013

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Transcript of Physics in Pogo Sticking

Spring constant Hooke's law Pogo sticking is a perfect example of Hooke's law. This law applies to any object that can be stretched or compressed, and then return to its original form, such as the spring in a pogo stick. Hooke’s law states that “the distance of extension or compression of an elastic material is directly proportional to the applied force.” Physics in Pogo Sticking By Sara Booth Pogo sticks also relate to potential and kinetic energy. Bibliography Hewitt, Paul G. Conceptual Physics: The High School Physics Program. Needham, MA: Prentice Hall, 2002. Print. F=-kx Where x is the displacement of the spring's end from its equilibrium position.
F is the restoring force exerted by the spring on that end.
k is a constant called the rate or spring constant. Spring constant is a measure of the elasticity of the spring. The higher it's value, the more force you will need to exert to extend the spring. Spring constant is measured in newtons per meter. Each bounce on the pogo stick turns potential energy to kinetic energy and back to potential again. When the spring is fully compressed and the child is closest to the ground, all of the energy is potential. As the spring begins push up potential energy begins to convert to kinetic energy. When the spring is fully extended there is a mixture of both potential energy from gravity and kinetic energy from the movement. As the pogo stick reaches it's highest point there is a moment when the movement stops and all the the energy is potential again. As the pogo stick falls back to the ground, potential energy is transformed into kinetic energy. And finally the spring compresses and the energy is potential once again. "Determine the Spring Constant." Hooke's Law Spring Constant. N.p., n.d. Web. 06 Jan. 2013. "Potential & Kinetic Energy." Potential & Kinetic Energy. N.p., n.d. Web. 06 Jan. 2013. So, according to Hooke's law the amount of force that is placed on the pogo stick (how hard you jump) will affect how high you go in the air? A grown adult will most likely jump higher into the air because, they will probably apply more force when jumping on the pogo stick... ...than a little girl would, causing her to not jump as high into the air.
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