12-9 Battery & Magnet Recap

Front

How do magnets become weaker?

Back

Magnets can become weaker when placed in different temperatures, particularly when exposed to heat.

Front

The area of magnetic force around a magnet is known as its _____________.

Back

magnetic field

Front

How many poles does a magnet have?

Back

2

Front

How can a simple electromagnet be made stronger?

Back

By adding more coils of wire to the nail.

Front

As the distance between two magnets increases, the force between them:

Back

Decreases

Front

What is the definition of a magnetic field?

Back

A magnetic field is the region around a magnet where magnetic forces can be detected.

Front

What are the two types of magnetic poles?

Back

North pole and South pole.

Front

What happens to the magnetic field when a magnet is cut in half?

Back

Each half becomes a new magnet with its own north and south poles.

Front

What is an electromagnet?

Back

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

Front

What is the effect of temperature on magnets?

Back

High temperatures can demagnetize a magnet, while low temperatures can enhance its magnetic properties.