Vocab

Question 0

Magnetism

Answer 0

The force of attraction or repulsion of magnetic materials.

Question 1

Magnet

Answer 1

Any material that attracts iron and materials that contain iron.

Question 2

Magnetic pole

Answer 2

The ends of a magnetic object, where the magnetic force is strongest.

Question 3

Magnetic force

Answer 3

A force produced when magnetic poles interact.

Question 4

Magnetic field

Answer 4

The region around a magnet where the magnetic force is exerted.

Question 5

Magnetic field lines

Answer 5

Lines that map out the magnetic field around a magnet.

Question 6

Compass

Answer 6

device with a magnetized needle that can spin freely; a compass needle always points north.

Question 7

Magnetic declination

Answer 7

The angle between geographic north and the north to which a compass needle points.

Question 8

Electromagnetism

Answer 8

The relationship between electricity and magnetism

Question 9

Solenoid

Answer 9

A coil of wire with a current.

Question 10

Electromagnet

Answer 10

A magnet created by wrapping a coil of wire with a current running through it around a core of material that is easily magnetised.

Question 11

Galvanometer

Answer 11

A device that uses an electromagnet to detect small amounts of current.

Question 12

Electric motor

Answer 12

A device that transforms electrical energy to mechanical energy

Question 13

Electromagnetic induction

Answer 13

The process of generating an electric current from the motion of a conductor through a magnetic field.

Question 14

Alternating current

Answer 14

Current consisting of charges that move back and forth in a circuit.

Question 15

Generator

Answer 15

A device that transforms mechanical energy into electrical energy.

Question 16

Transformer

Answer 16

A device that increases or decreases voltage, which often consists of two separate coils of insulated wire wrapped around an iron core.