That's Light Work
Formula for work
Force x Distance
Not Potential Energy
Kinetic Energy
The unit for energy
Joules
Food is digested to let you move
chemical to mechanical energy
Moving
Kinetic Energy
You push on a wall but it does not move, is this work?
No
Not mechanical energy
non-mechanical energy
Energy produced by the movement of electrons
Electrical Energy
Electromagnetic to thermal energy
Heat
Thermal Energy
A 5 kg box is pushed 5 meters - Work = ?
25 J of work
Energy is not created or destroyed but...
transferred form one type to another
Formula for kinetic energy
1/2 mass x velocity squared
Nuclear fission produces gamma wave radiation
nuclear to electromagnetic energy
Waiting
Potential Energy
Unit for power
Watts
Not nuclear fusion
Nuclear Fission
If an object has a mass of 10 kg and is 10 meters high, how much potential energy does it have?
980 J
A spinning windmill produces electricity
mechanical to electrical energy
Light
Electromagnetic Energy
Work is 50 Joules
Time is 2 seconds
Power = ?
25 Watts
Which of these does not make potential energy stronger?
Gravity, Mass, Force, Height
Force
When velocity is doubled, what happens to kinetic energy
It is quadrupled (x4)
striking a gong makes a loud noise
mechanical to sound energy
Unchanging
Law of Conservation of Energy