How To Describe The Pogo Stick

2161 words - 9 pages

Top of hop = potential energy (mass of kid, height) As the pogo stick falls, PE turns into kinetic energy (freefall) Pogo stick hits ground, spring is compressed, until all KE turns back into PE in the spring (at bottom). Spring releases, turning PE back into KE, as the child springs upwards againWhen the spring is fully compressed and the child is lowest to the ground, 100% of the relative energy is in the form of potential energy in the spring. As the spring pushes the child up, the potential energy in the spring is converted into both kinetic energy of the accelerating child and potential energy from gravity. When the spring is fully relaxed, the energy is mixed between kinetic energy from movement and potential energy from gravity. As the child goes higher but slows down, kinetic energy is transferred into potential energy from gravity. At the apogee of flight, when movement stops, 100% of the energy is in potential energy from gravity. As the child falls, the potential energy from gravity becomes kinetic energy. When the spring begins to compress, the child slows down and the kinetic energy is transformed into potential energy from the spring. When the spring is fully compressed, 100% of the energy is in potential energy from the spring, and the process repeats from here. of Physics in Pogo StickingSpring 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...

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