science,Energy vocabulary 2 Flashcards
to learn
Energy transfer
When energy moves from one place to another.
Pathway
Ex:conducting wires that connect the two terminals of the battery.
Open and closed circuits
Open circuit: An open circuit is a circuit in which means there is no flow of current. Closed circuit: A closed circuit is a circuit in which the path is complete and there is a flow of current in the path.
Switch
A switch is an electrical component that is used to turn on and off any equipment like a television, washing machine,lights,fans,etc.
Electric current
Electric current is the flow of electric charge from one place to another in a circuit.
Electric circuit model
An electric circuit has to have a power source , wires for the electricity to flow through, and a device such as a lamp or a motor that uses the electric current.
Insulators
Substances that do not allow an electric charge to pass through.Ex: glass,air,cotton,plastic,rubber and wood .
Conductors
Substances that an electric charge can pass through without difficulty.Ex: powerlines, fences for livestock ,battery jumper cables, powering electronic devices, also copper, aluminum, iron, steel, gold and silver.
Source
Such as a battery.
User
Such as a light bulb or other device that uses energy.