Gravitational Potential Energy is… – “stored energy” – Stored energy due to work done against gravity.

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Presentation transcript:

Gravitational Potential Energy is… – “stored energy” – Stored energy due to work done against gravity

Formula for GPE Gravitational Potential Energy = mass x height x acceleration due to gravity GPE = m x g x h Units!! GPE = m x g x h (J)(kg)(m/s 2 )(m) Joules

Kinetic Energy is… – energy due to motion – If an object is motionless Velocity = zerov = 0then… Kinetic Energy = zeroKE = 0

Formula for KE Kinetic Energy = ½ x mass x velcoity 2 KE = ½ x m x v 2 Units!! KE= ½ m x v 2 (J)(kg)(m/s) Joules

Conservation of Energy Energy CANNOT BE CREATED OR DESTROYED Energy only transforms from on form to the other. Many times, energy is “lost” but really it transforms due to Friction Friction causes Thermal Energy – or Heat !! Friction can also cause Sound – which is another form of Energy

Conservation of Energy Watch this Youtube Clip of a professor from MIT who is almost as good as Mr. Guerra… g6Q g6Q

Click on these Links and Watch How the Energy is Transformed!! netic+and+potential+energy+in+mass- spring.swf/ /Kinetic%20and%20pot ential%20energy%20in%20mass-spring.swf netic+and+potential+energy+in+mass- spring.swf/ /Kinetic%20and%20pot ential%20energy%20in%20mass-spring.swf Move the blue bock on the bottom to get it started. files/energy.swf files/energy.swf Click on “Fall”“Slide” “Swing” & “Spring” Click the green play button at the bottom.

That’s It Start the Energy Skate Park Lab!!!

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