The basics of electricity

An electrical circuit is a closed pathway that allows electrical charges to flow.

• True

• False

South Africa’s first electrical power plant was established in:

• Early 1920’s

• 1789

• 1820

• Late 1800’s

Thomas Edison is a famous inventor especially in the field of electricity for...

• Demonstrating that lightning was electricity

• Demonstrating his electrical light

• Inventing the electric motor

• Inventing first electric battery

Which one of the following components are not present in an electrical circuit?

• A switch

• A resistor

• A magnifying glass

• Conducting wire

There exist conductors (materials that permit electrons to flow freely from particle to particle) and insulators(material that does not conduct electrical current). Which of the following is not a conductor?

• Steel

• Plastic

• Metals

• Seawater

A ______ opens and closes a circuit

• Cell

• Conductor

• Wire

• Switch

This component symbolizes a _____

• Light bulb

• Ammeter

• Voltmeter

• Battery

Electrical energy is formed from the ______ within a cell.

• Metals

• Terminals

• Chemicals

• None of these options

Particles that are charged______ attract each other

• Positively

• Negatively

• Same

• Oppositely

The first town in South Africa to have electric streetlights is ?

• Durban

• Cape Town

• Kimberley

• Johannesburg