Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

NLC Apprenticeship Year 2 Week 1 > Basic Electrical Theory > Flashcards

Basic Electrical Theory Flashcards

1
Q

a quantity of

electrons flowing past a given point in a given time.

A

Amp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

the smallest part of an element that contains all

the properties of that element.

A

Atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

a material that readily allows the flow

of electrical current.

A

Conductor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

a quantity measurement of electrons.

There are 6,250,000,000,000,000,000 electrons in one

A

Coulomb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

the rate of flow of electrons.

A

Current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

one of three principle parts of the atom.

carries a negative charge.

A

Electron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

a substance that cannot be chemically

divided into a simpler substance.

A

Element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

magnetic lines of force.

A

Flux

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

loosely held electrons in the

outermost shell of an atom.

A

Free Electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

the process by which a current flows

through a conductor when passed through a magnetic field.

A

Induction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

any material that resists the flow of

electrical current.

A

Insulator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

a naturally occurring discharge of static

electricity.

A

Lightning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

a substance that possesses the property of

attracting iron.

A

Magnet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

the process by which a current flows through a conductor when passed through a magnetic field.

A

Magnetic Induction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

one of three principal parts of the atom they have no charge

A

Neutron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

the positively charged mass within the
center of an atom, contains protons and neutrons. It
makes up most of the atoms mass.

A

Nucleus

17
Q

the unit of measure for electrical resistance

A

Ohm

18
Q

describes the mathematical relationship
between voltage, amperage, and resistance. In its simplest form, it states that it takes one volt to push one amp through one ohm of resistance.

A

Ohm’s Law

19
Q

one of three principal parts of the atom they have a positive charge.

A

Proton

20
Q

the opposition to current flow in an

electrical circuit.

A

Resistance

21
Q

refers to electrons that are sitting still and not moving.

A

Static Electricity

22
Q

the outermost electron orbit of an atom. Electrons located in this determine the conductive properties of an element.

A

Valance Shell

23
Q

measure of electromotive force or electrical pressure.

A

Volt

24
Q

a unit of electrical power. One is produced

when one amp flows through one volt of potential difference.

A

Watt

25
Q

Explain Electricity

A

Electricity is the flow of atomic particles called
electrons. Electrons flow, as opposed to protons or neutrons, because they have a much smaller mass. Remember that protons are 1840 times heavier than electrons, and electrons are easily moved from orbit. If the same amount of force is applied to two objects, the lighter of the two will move first.

26
Q

Explain Law of Charges

A

All atomic particles have charges. The charges

can be positive, negative or neutral. The Law of Charges states that opposite charges attract, and like charges repel.

27
Q

Explain Law of Centrifugal Force

A

The Law of Centrifugal Force states that a spinning object will pull away from its center point and that the faster it spins, the greater the centrifugal force becomes. This is what keeps the negatively charged electrons from combining with the positively charged nucleus.

28
Q

Explain Valence Shell

A

The outermost electron orbit of an atom is known
as the Valence Shell. The electrons in this orbit are of primary concern when dealing with electricity. The number of electrons in the Valence Shell determines whether an element is a conductor or an insulator.

29
Q

Explain Magnetism

A

All atoms have electrons, protons and neutrons.
Materials with magnetic properties have electrons that combine in such a way that the lines of force are amplified. These amplified lines of force are called flux, and rather than being combined within the material, they surround the material and exist in the air around it.

30
Q

Explain Magnetic Induction

A

The magnetic field that surrounds a magnet has the ability to force electrons through a conductor if that conductor is passed through the magnetic field. This causes electrons to flow away from the field and through the conductor if a complete circuit exists.

31
Q

Explain Static Electricity

A

Static charges are the buildup of electrons on insulator materials. Static charges cannot accumulate on conductive materials unless they are insulated from a different potential. The electrons simply flow down the conductor and do not build up. For example, electrons do not accumulate on power lines unless the span of wire is isolated from the circuit.

NLC Apprenticeship Year 2 Week 1 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions