8th Grade Unit 8 Electricity and Magnetism

Front

What is an insulator?

Back

An insulator is a material that does not allow electrons to flow easily through it, preventing the conduction of electricity.

Front

What is a conductor?

Back

A conductor is a material that allows electrons to flow easily, enabling the conduction of electricity.

Front

What is a circuit?

Back

A circuit is a closed loop that allows electric current to flow, typically consisting of a power source, conductors, and a load.

Front

What is a magnetic field?

Back

A magnetic field is the area around a magnet where magnetic forces can be detected, strongest at the poles.

Front

Where is the magnetic field strongest on a magnet?

Back

The magnetic field is strongest at both the north and south poles of a magnet.

Front

What is the energy transfer from a battery to a light bulb?

Back

The energy transfer is chemical energy from the battery converted to electrical energy, which is then converted to light energy in the bulb.

Front

What is a semiconductor?

Back

A semiconductor is a material that has electrical conductivity between that of a conductor and an insulator, commonly used in electronic devices.

Front

Give an example of a semiconductor.

Back

Silicon is a common example of a semiconductor.

Front

What is the role of a battery in a circuit?

Back

A battery provides the chemical energy that is converted into electrical energy to power the circuit.

Front

What happens in a series circuit?

Back

In a series circuit, all components are connected in a single path, so the same current flows through each component.