Light bulb
Resistance
Of a material measures how well electricity can move through it
Conductor
Of electricity ia a material that allows electricity to flow through it freely. Metals.
Non conductor or insulator
A material that resists the flow of electricity and does not allow electrons to pass through it. Have great resistance
Iron
A metal that is a poor conductor
Most metals
Are good conductors of electricity
Circuit
Electricity flows from negative side of battery through the wires and lights the bulb,the electricity continues to travel around to the positive side of the battery.
Current electricity
Electricity that flows through wires. The path it follows is called a circuit
Electrical curcuit
Flow of energy from a source and back to the source. When circuit is open energy does not flow . When the circuit is closed the energy dies flow
Light bulb
Gives off heat and light
Copper
Good conductor. Commonly used in electrical circuits
Filament
In a light bulb a very thin piece of wire that resisted the flow of electricity with in it. It becomes so hot that it glows. The thinner filament will have a brighter bulb because there is more resistance
Solder
Points of metal on the base and the side of the insulator which allow electric current to flow into the bulb
Batteries
Store chemical energy. Made up of positive and negative terminal which is called polarity. Both - & + terminals must be used for there to be a flow of electricity.
Static electricity
When two surfaces touch one another each has a different charge. Rub together
Insulators -examples of
Wood, glass, plastics, good insulators have high resistance.plastic around wires and bulb holders are insulators.