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Electricity And Electrical Safety

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What is electricity?

Back (Answer)

Effects produced by moving charges

#2
Front (Question)

What are two kinds of charge?

Back (Answer)

• positive - negative

#3
Front (Question)

What is the SI unit of charge?

Back (Answer)

Coulomb (C)

#4
Front (Question)

Charge of 1 electron

Back (Answer)

-1.6 x 10 ^ -19 C “-e”

#5
Front (Question)

Charge of 1 proton

Back (Answer)

+ 1.6 x 10 ^ -19 C “e”

#6
Front (Question)

Opposite charges

Back (Answer)

Attract

#7
Front (Question)

Like charges

Back (Answer)

Repel

#8
Front (Question)

Coulomb’s Law

Back (Answer)

Like charges repel, opposite charges attract Law gives the magnitude of the electrostatic force of attraction or repulsion

#9
Front (Question)

What is electric current?

Back (Answer)

The amount of charge flowing per unit time

#10
Front (Question)

Conductors

Back (Answer)

Materials in which charges can easily move

#11
Front (Question)

___ are good electrical conductors

Back (Answer)

Metals

#12
Front (Question)

Most ___ are nonmetals and generally are not good conductors

Back (Answer)

Insulators (except for graphite)

#13
Front (Question)

To be a good conductor, electrons must be able to…

Back (Answer)

Move easily from one atom to the next

#14
Front (Question)

Electrical conductors are made of atoms that ___

Back (Answer)

Do not hold onto electrons tightly

#15
Front (Question)

Metals have electron shells that are mostly ___

Back (Answer)

Empty—good conductors I.e.: Copper only has one electron in its fourth energy level

#16
Front (Question)

In the molecular orbital (MO) approach to bonding, atomic orbitals from individual atoms are ___ together to form molecular orbitals that extend over the entire molecule

Back (Answer)

Added

#17
Front (Question)

The MO approach to bonding results in a large collection (or band) of MOs that is only ___ filled; thus, there is room to ___ into the “molecule” with very little energy

Back (Answer)

Partially filled; room to accept new electrons

#18
Front (Question)

Electrical conductors allow electrons to pass through their conduction bands with very little effort, but not ___ effort

Back (Answer)

Zero

#19
Front (Question)

The energy required to push electrons through a material is a measure of the ___ of the material to the passage of current

Back (Answer)

Resistance

#20
Front (Question)

Resistance is measured in ___

Back (Answer)

Ohms

#21
Front (Question)

Conductance is the reciprocal of ___

Back (Answer)

Resistance

#22
Front (Question)

Conductance is measured in ___ or ___

Back (Answer)

Mhos or Siemens (S)

#23
Front (Question)

What is the electric circuit?

Back (Answer)

The closed path through which a charge flows

#24
Front (Question)

Direct current (DC) circuit

Back (Answer)

An electrical circuit in which the current flows in one direction only