Magnetism

Which of the following is magnetic?

• Silica

• Magnetite

• bauxite

• Copper ore

A magnetic field is

• The area within the magnet

• at one end of the magnet

• a very weak field

• The area around a magnet

Magnetic lines of forces are called magnetic flux.

• True

• False

Magnets have a north pole only.

• True

• False

Magnetic fields are made up of magnetic lines of forces.

• True

• False

Magnetic fields flow from south to north.

• Ture

• False

Like magnetic poles repel.

• True

• False

The north pole of a magnet is attracted to the south pole of an other magnet.

• True

• False

Magnetic flux is...

• The lines of forces within the magnetic field

• The direction of attraction

• A type of magnet

• strongest further away from the magnet

What is the corkscrew rule used for?

• To determine the magnetic field strength

• The direction of the current

• The direction of the magnetic lines of forces

• None of the above