Magnetism

Front

What is the main component of Earth's core that makes it act like a giant magnet?

Back

Iron.

Front

What are the two poles of a magnet?

Back

South and North.

Front

How can you make an electromagnet stronger?

Back

By increasing the current through the wire, making the iron core bigger, or increasing the number of loops around the core.

Front

What generates magnetism in materials?

Back

Moving electrons.

Front

Can electricity be used to create a magnet?

Back

True.

Front

What is a magnet?

Back

An object that produces a magnetic field.

Front

What is the difference between a permanent magnet and an electromagnet?

Back

A permanent magnet maintains its magnetism, while an electromagnet's magnetism can be turned on and off.

Front

What is the magnetic field?

Back

The area around a magnet where magnetic forces can be detected.

Front

What happens when you cut a magnet in half?

Back

You create two smaller magnets, each with a north and south pole.

Front

What is the unit of measurement for magnetic field strength?

Back

Tesla (T).