Energy Stores and Transfers

What are the eight different energy stores?

Thermal / internal, Kinetic, Gravitational potential, Elastic, Chemical, Magnetic, Electrostatic, Nuclear

What happens when a system changes?

The energy is transferred

Where does energy transfer when the system changes?

It can be transferred into or away from the system, between different objects in the system or between different types of energy stores

What is a closed system?

Systems where matter and energy cannot enter or leave

The net change in the total energy of a closed system is always what?

It is always zero

What is another way of saying energy transferred?

Work done

What is radiation?

When energy is transferred as electromagnetic waves, it can travel through empty spaces

What is friction?

A force that slows things down when two surfaces touch or rub against each other

What is an initial force?

The first force needed to start something moving