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Question 1

A device that produces static electricity?

Answer 1

electrostatic generator

Question 2

The most common electrostatic generator used today?

Answer 2

Van de Graaff generator

Question 3

A large discharge of static electricity between the ground and a cloud during a thunderstorm?

Answer 3

lightning

Question 4

A device for protecting building and other structures from lightning strikes.

Answer 4

lightning rod

Question 5

An eerie bluish glow that sometimes appears around pointed objects during storms
(a natural electrostatic phenomenon called corona discharge).

Answer 5

St. Elmo’s fire

Question 6

An early device used to store an electric charge.

Answer 6

Leyden jar

Question 7

A device used to store a static electricity charge (modern).

Answer 7

capacitor

Question 8

An electrostatic method producing images on paper.

Answer 8

Xerography

Question 9

An electric lamp that produces light by heating a thin wire called a filament to a high temperature .
(The first electric light suitable for a household).

Answer 9

incandescent lamp

Question 10

Produces light by passing an electric current through a long tube filled with a low-pressure mixture of mercury and argon.

Answer 10

fluorescent lamp

Question 11

Coiled tubes about the size of a regular incandescent bulb. They operated the same way but they can be used in sockets designed for incandescent bulbs.

Answer 11

compact fluorescent lamps

Question 12

An electric discharge lamp filled with neon gas instead of mercury vapor.

Answer 12

neon lamp

Question 13

Semiconductor devices that emit light when a direct electric current is applied.

Answer 13

light-emitting diodes

Question 14

A simple device that converts electricity to back-and-forth motion.

Answer 14

solenoid

Question 15

A device for communicating over long distances by means of electromagnets.

Answer 15

telegraph

Question 16

Allows electromagnets to operate switches, an electrical switch operated by an electromagnet.

Answer 16

relay

Question 17

A device that converts pulses of electricity into sound waves.

Answer 17

loudspeaker

Question 18

The most important device for converting electricity into motion.

Answer 18

electric motor

Question 19

A cell which are not designed to be recharged.

Answer 19

voltaic cells

Question 20

A cell that can be recharged by sending a current through them backward.

Answer 20

storage cells

Question 21

A negative terminal which produces an excess of electrons.

Answer 21

anode

Question 22

A positive terminal which has a deficiency of electrons.

Answer 22

cathode

Question 23

One or more electrochemical cells connected to terminals as a single source of current.

Answer 23

battery

Question 24

The ability of magnetism to convert mechanical motion into electric current.

Answer 24

electromagnetic induction

Question 25

A device that uses electromagnetic induction to produce electricity.

Answer 25

generator

Question 26

A device in which a conducting fluid passes through a magnetic field at high speed to generate electricity.

Answer 26

magnetohydrodynamic generator

Question 27

A device that increases or decreases the voltage of alternating current using electromagnetic induction.

Answer 27

transformer

Question 28

Uses movement to produce electricity

Answer 28

generator

Question 29

Uses electricity to produce movement.

Answer 29

motor

Question 30

The extent of a planets magnetic field in space

Answer 30

magnetosphere

Question 31

Display of shimmering light

Answer 31

aurora

Question 32

Two vast, doughnut-shaped belts of high-speed charged particles

Answer 32

Van Allen radiation belts

Question 33

The outer boundary of the magnetosphere

Answer 33

magnetopause

Question 34

A stream of plasma that emanates from the sun

Answer 34

solar wind

Question 35

Circles the earth halfway between the two magnetic poles

Answer 35

magnetic equator

Question 36

Connect locations having equal inclination

Answer 36

isoclinic lines

Question 37

compass constructed with a magnet free to swing vertically would reveal the angle at which the lines of flux enter the earth

Answer 37

inclination

Question 38

The line connecting all points where a compass needle points true north

Answer 38

agonic line

Question 39

Connect points of equal declination

Answer 39

isogonic lines

Question 40

A compass needle is usually a few degrees off from pointing true north

Answer 40

angle of declination

Question 41

A navigational device consisting of a magnet free to swing horizontally so that it always points true north

Answer 41

magnetic compass

Question 42

The force existing in a magnetic field that causes moving electric charge to deviate from its original path

Answer 42

deflecting force

Question 43

Temperature at which a ferromagnetic materials domains dissapear

Answer 43

Curie point

Question 44

The resistance of a magnetic field to be demagnetized by a magnetic field

Answer 44

coercivity

Question 45

A device that produces a strong magnetic field when electricity passes through it

Answer 45

electromagnet

Question 46

Temporary magnetization caused by placing an object within a magnetic field

Answer 46

magnetizing by induction

Question 47

A magnet made from a magnetically soft material called

Answer 47

temporary magnet

Question 48

A permanent magnet by stroking it with a magnet

Answer 48

magnetizing by conduction

Question 49

Magnets made from magnetically hard materials

Answer 49

permanent magnets

Question 50

Materials whose domains strongly resist changes in the direction of their magnetic fields

Answer 50

magnetically hard

Question 51

Substances that can be quickly magnetized even in a weak magnetic field

Answer 51

magnetically soft

Question 52

Some substances have several unpaired electrons per atom, making them strongly attracted to magnets

Answer 52

ferromagnetic

Question 53

A material weakly attracted to a magnet

Answer 53

paramagnetic

Question 54

Substances with no unpaired selections

Answer 54

diamagnetic