4.1 Magnets And Magnetic Fields

Question 1

Compass

Answer 1

A small magnet that aligns in the Earth’s magnetic field to show its direction

Question 2

Domain (model of magnetism)

Answer 2

A model of a magnet which says that it is made of small magnetic regions called domains

Question 3

Induced magnet

Answer 3

A magnet that is produced when a magnetic material is placed in a magnetic field, which may or may not stay magnetic when the field is removed

Question 4

Magnetic field lines

Answer 4

Lines that model a magnetic field; denser lines mean a stronger field

Question 5

Magnetic North Pole

Answer 5

The place on the surface of the Earth where a compass points, not the same as geographical north

Question 6

Permanent magnet

Answer 6

A magnet that stays magnetic when other magnets, or an electric current, is removed

Question 7

Solenoid

Answer 7

A coil of wire

Question 8

Tesla (T)

Answer 8

The unit of magnetic field strength, or magnetic flux density