Magnets & Static Electricity

Front

What is a magnet?

Back

A magnet is an object that can attract certain metals like iron and has a magnetic field around it.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet that is created when electricity flows through a wire wrapped around a metal core.

Front

What is a magnetic field?

Back

A magnetic field is the area around a magnet where magnetic forces can be felt.

Front

What are the two poles of a magnet?

Back

The two poles of a magnet are called the north pole and the south pole.

Front

What happens when you bring two magnets close together?

Back

If the same poles (north-north or south-south) are close, they repel each other; if opposite poles (north-south) are close, they attract.

Front

What materials are attracted to magnets?

Back

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

Front

What is static electricity?

Back

Static electricity is the build-up of electric charge on the surface of objects.

Front

What happens when you rub a balloon on your hair?

Back

Rubbing a balloon on your hair transfers electrons, giving the balloon a negative charge and causing it to attract or repel other objects.

Front

What is the role of a battery in an electromagnet?

Back

A battery provides the electrical energy needed to create a magnetic field in an electromagnet.

Front

What is one use of electromagnets?

Back

Electromagnets are used in devices like doorbells, speakers, and junkyard cranes.