Electromagnets and Magnets

Front

What happens when you bring two north poles or two south poles of magnets together?

Back

They repel each other.

Front

Which material is magnetic?

Back

Cobalt is a magnetic material.

Front

What are some applications that use magnetic fields?

Back

Motors, bells, electromagnets, and compasses all use magnetic fields.

Front

How can you make an electromagnet stronger?

Back

You can add more coils, increase the current, or change the shape.

Front

Do we use electromagnets in fire alarms?

Back

Yes, electromagnets are used in fire alarms.

Front

What is a magnet?

Back

A magnet is an object that produces a magnetic field.

Front

What are the two types of magnets?

Back

The two types of magnets are permanent magnets and electromagnets.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet where the magnetic field is produced by an electric current.

Front

What is the role of magnetic fields in motors?

Back

Magnetic fields in motors help convert electrical energy into mechanical energy.

Front

What is the difference between a north pole and a south pole of a magnet?

Back

North poles attract south poles and repel other north poles; south poles attract north poles and repel other south poles.