Electricity basics

Question 1

This thing does not occupy space or have mass. It is the movement of electrons from one atom to another along a conductor

Answer 1

electricity

Question 2

Any material that conducts electricity is known as a…

Answer 2

conductor

Question 3

Most metals and pure (distilled) water are good…

Answer 3

conductors

Question 4

Also known as an insulator, this is a material that does not transit electricity

Answer 4

nonconductor

Question 5

The path that negative and positive electric currents take from the generating source through the conductors and back to the generating source

Answer 5

complete electric circuit

Question 6

This type of current is constant, even-flowing, and travels in one direction only and is produced by chemical means

Answer 6

direct current

Question 7

This type of current is rapid and interrupted, flowing first in one direction and then in the opposite direction. It is produced by mechanical means

Answer 7

alternating current

Question 8

This apparatus changes a direct current to an alternating current

Answer 8

inverter

Question 9

This apparatus changes an alternating current to a direct current

Answer 9

rectifier

Question 10

A unit that measures the pressure or force that pushes electric current forward

Answer 10

volt

Question 11

A unit that measures the strength of an electric current

Answer 11

ampere

Question 12

Abbreviated as mA, this is 1/1,000 of an ampere

Answer 12

milliampere

Question 13

A unit that measures the resistance of an electric current

Answer 13

ohm

Question 14

A unit that measures how much electric energy is being used in one second

Answer 14

watt

Question 15

Abbreviated as kw, is 1,000 watts

Answer 15

kilowatts

Question 16

A device that prevents excessive current from passing through a circuit by blowing out or melting when the wire becomes too hot

Answer 16

fuse

Question 17

A switch that automatically interrupts of shuts off an electric circuit at the first indication of an overload

Answer 17

circuit breaker

Question 18

This process completes an electric circuit and carries the current safely away

Answer 18

grounding

Question 19

Designed to protect from electrical shock by interrupting a household circuit when there is is a leak in the circuit

Answer 19

ground fault interrupter (GFI)

Question 20

This organization certifies the safety of electrical appliances

Answer 20

Underwriters Laboratories