Unit 08: Electricity Practice

Front

What is a conductor?

Back

A conductor is a material that allows electricity to flow through it easily. Examples include metals like copper and aluminum.

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity to flow through it easily. Examples include rubber, plastic, and wood.

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical path that allows electricity to flow. All components are connected without any breaks.

Front

What is an open circuit?

Back

An open circuit is a broken electrical path where electricity cannot flow. This can happen if a switch is open or a wire is disconnected.

Front

What happens when a switch is open?

Back

When a switch is open, the circuit is incomplete, and electricity cannot flow, so devices like light bulbs do not turn on.

Front

What is a magnetic field?

Back

A magnetic field is the area around a magnet where magnetic forces can be felt. The strength of the field depends on the strength of the magnet.

Front

What is the role of a switch in a circuit?

Back

A switch controls the flow of electricity in a circuit. When it is closed, electricity flows; when it is open, electricity stops.

Front

What materials are good conductors of electricity?

Back

Good conductors include metals like copper, aluminum, and silver.

Front

What materials are good insulators?

Back

Good insulators include rubber, plastic, glass, and wood.

Front

What is the purpose of a light bulb in a circuit?

Back

A light bulb converts electrical energy into light energy when electricity flows through it.