Energy Flashcards
Energy
The ability to do work
Energy Store
How energy is kept by an object until it is ready to be used
Energy Transfer
How energy is moved fro one object or place to another
Conservation of Energy
Energy cannot be created or destroyed, only transferred from one store to another
Dissipate
When energy is transferred to the thermal store of the surroundings we say that it has dissipated
Power
The rate at which energy is transferred P = E/T
Watt
unit of power
Efficiency
The more energy something wastes, the less efficient it is
Sankey Diagram
A diagram that shows the efficiency of a machine
What are the 8 Energy stores
Magnetic, Kinetic, Heat, Gravitational potential, Electrostatic, Chemical, Elastic potential, Nuclear
Describe the energy transfer that occur as a ball falls to the ground
Gravitational Potential - Kinetic
Where does energy end up at the end of most energy transfers
In the thermals store of the surroundings
What is the formula for Power
P = E/T or E = Px T
How do you convert KW into W
Multiply by 1000
How do you convert K into KW
Divide by 1000
