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This Blog contains all of my Journals for Iolani Physics 2008-2009.

Saturday, November 1, 2008

Potential Energy??? HECK YEA!



As I was pondering about what to do for my next physics journal, I thought of the easiest one ever. POTENTIAL ENERGY! Potential Energy is simply once something is above ground, it has a stored energy called potential energy. The equation for this is PE = mass x gravity x height. So here in my picture, I am standing right outside my balcony into the distance, knowing that I have Potential Energy! Even when walking around the house and jumping up and down, I have potential energy AND Kinetic energy in respect to the ground floor. But in respect to the carpet at home, I have NO potential energy whatsoever, unless i somehow climb on top of a chair or table. Kinetic Energy is basically when an object is in motion. The equation for this is KE = .5 x mass x velocity^2. Cool, isn't it? Note: In a frictionless condition, the following equation applies, when transitioning between potential and kinetic energy: PEa + KEa = PEb + KEb!!!!

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