VIEWS: 5 PAGES: 1 POSTED ON: 9/14/2012
Mechanical Energy Background information: Two forms of mechanical energy are potential and kinetic. When a sphere is at the top of a ramp, it has stored energy. The higher the ramp, the more potential energy a sphere has. As a sphere [such as my marble] is released, its potential energy is transformed into kinetic energy. When a sphere is in motion it has kinetic energy. The more potential energy, the more kinetic energy it will have. As a sphere’s energy transforms from kinetic to potential, a sphere comes to a stop. Two forces act on a sphere. Gravity pulls the sphere down the ramp as it’s released. Friction can speed a sphere’s motion up or slow it down. “Real-world” relevance or application: A ramp is classified as a simple machine, an inclined plane. Its sloping surface is found in moving vans, trucks, or trailers to make it easier to lift heavy objects with less force. Inclined planes are also wheelchair ramps and stairs.
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