Applied Science-Energy

Applied Science-Energy

1. Gravitation Potential Energy

   • Charge of GPE = mass x gravitational force x change in height
   • GPE = m x g x h

2. Efficiency

   • Efficiency = Energy out ÷ Energy in x 100

3. Possible equations for GPE

   • Potential energy = mass x gravity x height
     • Ep = mgh
   • gravity = potential energy ÷ (mass x height)
     • g = Ep ÷ mh
   • Height = potential energy ÷ (mass x gravity)
     • h = Ep ÷ mg
   • Mass = potential energy ÷ (gravity x height)
     • m = Ep ÷ gh

4. 9 forms of energy

   • Kinetic (movement)
   • Gravitational potential (uphill)
   • Heat energy
   • Light energy
   • Sound energy
   • Elastic potential (anything stretched)
   • chemical potential (usually batteries and fuels)
   • Nuclear energy
   • Electrical energy

5. Kinetic energy equation

   • ½ x mass x velocity x velocity
     • ½ x m x v x v
   • (mass x velocity x velocity) ÷ 2
     • (m x v x v) ÷ 2
   • 0.5 x mass x velocity x velocity
     • 0.5 x m x v x v