Electricity Test Vocab

Question 1

Lightning

Answer 1

a visible electrical discharge from a cloud.

Question 2

Thunderbird

Answer 2

A eagle-like bird that brings the rain and creates lightning from blinking and rain from crying. It is a part of First Nation culture.

Question 3

Lightning Rod

Answer 3

A metal pole with a wire attached to it that is mounted in the top of a structure. It provides a pathway for lightning to reach the ground without any harm to the structure.

Question 4

Static electric charge

Answer 4

An electric charge that builds up on the surface of an object

Question 5

Electrical discharge

Answer 5

When electric charges are transferred very quickly.

Question 6

Grounding

Answer 6

The process of connecting a charged object to Earths surface

Question 7

Grounding strap

Answer 7

A metal wire or chain used to prevent static electric charges from building up on vehicles.

Question 8

Static discharge rods

Answer 8

Needle-like rods on the wings or body of an airplane that disperse static electric charges into the air

Question 9

Electrostatic precipitators

Answer 9

A filter station device used to remove fine particles from the flowing gas

Question 10

Fuel cell

Answer 10

A cell producing electric current directly from a chemical reaction

Question 11

Circuit

Answer 11

A complete path in which electrons can flow; includes energy source, electrical load, and conducting wires

Question 12

Current electrical energy

Answer 12

The flow of electric charge in a circuit

Question 13

Load

Answer 13

A device that converts electrical energy to another form of energy

Question 14

Switch

Answer 14

A device that turns the circuit on or off by closing or opening the circuit

Question 15

Voltage

Answer 15

The difference in electrical energy between two points in a circuit

Question 16

Voltmeter

Answer 16

A device used to measure voltage

Question 17

Electric current

Answer 17

A measure of the amount of electric charge that passes by a point in an electrical circuit in a given time interval

Question 18

AC

Answer 18

An electrical current that flows back-and-forth at regular intervals called cycles

Question 19

DC

Answer 19

An Electrical current that flows in only one direction

Question 20

Ammeter

Answer 20

A device that measures the current in a circuit

Question 21

Ampere

Answer 21

The unit of electric current

Question 22

Resistance

Answer 22

The degree to which a substance opposes the flow of electric current through it

Question 23

Ohms

Answer 23

The unit in which resistance is measured in

Question 24

Ohmmeter

Answer 24

A device for measuring electrical resistance

Question 25

Multimeter

Answer 25

A multifunctional metre that can function as an ammeter, ohmmeter or voltmeter

Question 26

Resistor

Answer 26

A material that can slow current flow in a circuit, such as the filament and a lightbulb

Question 27

Superconductor

Answer 27

A type of conductor that has no electrical resistance below a characteristic temperature

Question 28

Battery

Answer 28

A combination of electrochemical cells

Question 29

Electrochemical cell

Answer 29

A package of chemicals that converts chemical energy into electrical energy that is stored in charged particles

Question 30

Electrolyte

Answer 30

A liquid or paste that contains chemical chemicals that form ions and conducts electrical charge

Question 31

Electrodes

Answer 31

A metal strip that reacts with an electrolyte

Question 32

Wet cell

Answer 32

An electrochemical cell that uses a liquid electrolyte

Question 33

Dry/primary cell

Answer 33

An electrochemical cell that uses a paste instead of a liquid electrolyte