Energy stores and systems

Cards (14)

7 Stores of energy 
Gravitational
Nuclear
Kinetic
Thermal
Elastic
Magnetic
Chemical
Units of energy 
Joules (J)
The law of conservation of energy states that energy cannot be created or destroyed, only transferred or transformed
Dissipation of energy 
Energy has spread to the surroundings
System 
An object or a collection of objects
Open system 
Allows external forces and energy to enter and leave
Closed system 
No external forces or energy can enter or leave
Throwing a ball upwards
Gravitational and kinetic stores of energy change
Burning a piece of coal 
Chemical and thermal stores of energy change
Car using its brakes to slow down
Kinetic and thermal stores of energy change
Dropping an object that doesn't bounce
Kinetic and thermal stores of energy change
Car accelerating with constant force 
Chemical and kinetic stores of energy change
Holding two magnets with opposite poles near and releasing 
Magnetic and kinetic stores of energy change
Work 
The amount of energy shifted