Technology

Cell

Cell

sources in electrical energy that stores and supplies energy in a circuit

Electric circuit

a system of transferring electrical energy from one place to another

Battery

two or more cells connected to provide electrical energy

Components

parts of a circuit

Electric current

movement of electric charges that pass through a conductor

Insulator

material in which electric charges are not able to pass through

Buzzer

converts electric energy into sound energy

Output device

components that change electrical energy ino another form of energy

Electric motors

converts electric energy into movement energy

Switch

a component that controls whether the current flows in a circuit

Components in a circuit include:

• source of energy

• conducting material

• device

• switches

The conducting materials of electricity include:

• aluminium

• copper

• iron

• steel

• platinum

Insulators of electricty include:

• plastic

• wood

• glass

• rubber

• ceramic

Examples of devices:

• bulb

• buzzer

• motors

Examples of switches:

• light switch

• electric equipment

• oven knob

Circuit diagram

electric circuit drawn in symbols representing the components

Transfer

when energy goes from one place to another

System

something made up of two or more components that work together to do a specific job

Input

a component that goes into a circuit and provides the energy to the circuit

Output

a component that causes a result in a circuit

Process

the way in which the input is changed to the output

Fossil fuels

the remains of dead plants and animals that store energy from the sun

Non-renewable resources

resources that cannot be replaced when its used up

Powerstation

a place where electricity is generated

Turbine

the rotating blades of a machine

Generator

a machine that produces electricity

Transform

a machine that changes the amount of energy carried by electricity

Boiler

a machine that boils water

wattage

the amount of electric power an appliance needs to work

illegal connections

connections of electric wires that is not made by a qualified electrician or dont meet standard electric laws