Magnets & Magnetic Fields

Front

What happens when like poles of magnets are brought together?

Back

They repel each other.

Front

In which device would you find a magnet being used?

Back

A hard disk drive.

Front

How are magnetic fields represented?

Back

By field lines showing direction and strength.

Front

What determines the strength of an electromagnet?

Back

The amount of electric current and the number of turns of wire around the core.

Front

Which of the following is NOT an application of magnets?

Back

Solar panels.

Front

What are the two types of magnetic poles?

Back

North and South poles.

Front

What is a magnetic field?

Back

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

Front

What is the principle behind electromagnets?

Back

Electric current flowing through a wire creates a magnetic field.

Front

What is the effect of distance on the strength of a magnetic field?

Back

The strength of a magnetic field decreases with distance from the magnet.

Front

What materials are typically attracted to magnets?

Back

Ferromagnetic materials like iron, nickel, and cobalt.