UNIT 5 ELECTRICITY AND MAGNETISM

Why do you think wires are built this way? Electrical currents Why do you think wires are built this way? They allow current to flow but need to be safe to handle

ELECTRICAL CURRENT CONDUCTORS INSULATORS It is the flow of electrical charges. Transmits energy called electricity. Depending on the materials it flows differently. CONDUCTORS INSULATORS AIR, GLASS, PLASTIC, WOOD, RUBBER Electrical current does not flow easily MOST METALS Current flows easily

Electrical circuits Different components connected to each other to allow the flow of an electrical current

The source of electricity, such as an electrical plant or battery Electrical circuits: basic components GENERATOR: The source of electricity, such as an electrical plant or battery

ELECTRICAL COMPONENT: Electrical circuits: basic components ELECTRICAL COMPONENT: light bulb, motor

Electrical circuits: basic components CONDUCTING WIRES

Controls the flow of electrical current. It opens or closes it. Electrical circuits: basic components SWITCH: Controls the flow of electrical current. It opens or closes it.

Electrical circuits: basic components PLUG AND MAINS: A plug conects an electrical device to an external electrical circuit through the mains.

Electrical circuits

True or false? Copy and correct the wrong ones. Electrical current flows easily through conductors____. Rubber is a conductor ______ Electrical current does not flow easily through insulators ________ Most metals are insulators ___________. An electric circuit has four basic components_______ When the switch is on, it opens the electric circuit ____

True or false? Copy and correct the wrong ones. Electrical current flows easily through conductors T Rubber is a conductor F Rubber is an insulator. Electrical current does not flow easily through insulators T. Most metals are insulators F Most metals are conductors. An electric circuit has four basic components T When the switch is on, it opens the electric circuit F When the switch is on, it closes the electric circuit.

Write about electric circuits An electric circuit has four basic components: _______ ___________________________________________. They are connected to each other to allow _________ A switch controls the flow of electrical current. In the on position,_____________________________ ___________________________________________ In the off position_____________________________

Write about electric circuits An electric circuit has four basic components: a generator, an electrical component, conducting wires and a switch. They are connected to each other to allow the flow of an electrical current. . A switch controls the flow of electrical current. In the on position, it closes the circuit and allows the flow of the electrical current. In the off position, it opens the circuit and breaks the flow.

generator switch wire receiver Generator: it is the source of electricity. Switch: it controls the flow of electrical current. Conducting wire: it allows the electrical current to flow. Receiver: it receives the electrical current.rrent.