Ch 7 Vocab

Question 0

Magnetic Feild

Answer 0

Region surrounding a magnet that exerts a force on other magnets and objects made of magnetic material.

Question 1

Magnetic Domain

Answer 1

Group of atoms in a magnetic material in which the magnetic poles of the atoms are aligned in the same direction.

Question 2

Magnetic Pole

Answer 2

Region on a magnet where the magnet force exerted by the magnet is the strongest.

Question 3

Magnetism

Answer 3

The 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 current in a wire coil.

Question 6

Electromagnetic Force

Answer 6

The attractive or repulsive force between electric charges and magnets.

Question 7

Electromagnetism

Answer 7

The interaction between electric charges and magnets.

Question 9

Galvanometer

Answer 9

A device that uses an electromagnet to measure electric current.

Question 10

Solenoid

Answer 10

A cylindrical coil of wire used to produce a magnet field when an electric current passes through the wire.

Question 11

Alternating Current

Answer 11

Electric current that reverses it’s direction of flow in a regular pattern.

Question 12

Direct Current

Answer 12

Electric current that flows on.y in one direction.

Question 13

Electromagnetic Induction

Answer 13

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

Question 14

Generator

Answer 14

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

Question 15

Transformer

Answer 15

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

Question 16

Turbine

Answer 16

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