Chapter 7 Vocab

Question 0

Magnetic field

Answer 0

Region that surrounds a magnet; exerts force on other magnets and objects made of magnetic materials.

Question 1

Magnetic domain

Answer 1

Group of atoms in a magnetic materiel where the magnetic poles of the atoms of aligned in the same direction

Question 2

Magnetic pole

Answer 2

Region on a magnet where the magnetic force entered by the magnet is the strongest

Question 3

Magnetism

Answer 3

Properties and interactions of magnets

Question 4

Electric motor

Answer 4

Device that converts electrical energy to mechanical energy

Question 5

Electromagnet

Answer 5

Temporary magnet created when there is a current in a wire coil

Question 6

Electromagnetic force

Answer 6

The attractiveness or repulsive force between electric charges and magnets

Question 7

Electromagnetism

Answer 7

The interaction between electric charges and magnets

Question 8

Galvanometer

Answer 8

Device that uses an electromagnet to measure electric current

Question 9

Solenoid

Answer 9

Cylindrical coil of wire used to produce a magnetic field when an electric current passes through the wire

Question 10

Alternating current

Answer 10

Electrical current that reverses it direction of flow in a regular pattern

Question 11

Direct current

Answer 11

Electric current that flows only in one direction

Question 12

Electromagnetic induction

Answer 12

Process by which electric current is produced in a wire loop by a changing magnetic field

Question 13

Generator

Answer 13

Device that uses electromagnetic induction to convert mechanical energy to electrical energy

Question 14

Transformer

Answer 14

Device that uses electromagnetic induction to increase or decrease the voltage of an alternating current

Question 15

Turbine

Answer 15

Large wheel that rotates when pushed by steam,wind or water and provides mechanical energy to a generator

Question 16

North vs south

Answer 16

North pushes and south pulles