Electric and Magnetic Fields

Front

What is an electric field?

Back

An electric field is a region around a charged object where other charged objects experience a force. It is created by electric charges.

Front

What is a magnetic field?

Back

A magnetic field is a region around a magnet where magnetic forces can be detected. It is produced by moving electric charges or magnetic materials.

Front

What materials are attracted to magnets?

Back

Materials like iron, nickel, and cobalt are attracted to magnets.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet that is created by electric current. It can be turned on and off.

Front

How can you increase the strength of an electromagnet?

Back

You can increase the strength of an electromagnet by using more coils of wire or increasing the electric current.

Front

What is the difference between static electricity and current electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects, while current electricity is the flow of electric charge through a conductor.

Front

What is the role of a compass in understanding magnetic fields?

Back

A compass uses a small magnet to align itself with the Earth's magnetic field, pointing towards magnetic north.

Front

What is the force of attraction or repulsion between charged objects called?

Back

The force of attraction or repulsion between charged objects is called electric force.

Front

What happens to the magnetic field when you break a magnet in half?

Back

When you break a magnet in half, each half becomes a new magnet with its own north and south poles.

Front

What is the relationship between electricity and magnetism?

Back

Electricity and magnetism are interrelated; electric currents create magnetic fields, and changing magnetic fields can induce electric currents.