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BASIC ELECTRICITY > Atomic Structure > Flashcards

Atomic Structure Flashcards

1
Q

The force of attraction/repulsion that exists between 2 charged bodies this will cause electricity

A

the electrostatic force

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2
Q

Is the set of physical phenomena associate with the present and flow of electrical charge

A

electricity

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3
Q

Is compose of molecules which are composed of atoms

A

Matter

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4
Q

who discover the transition of element table/periodic table and what year

A

Mendeleev 1869

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5
Q

According to the FAA what are the two categories of electricity

A

Static and current electricity

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6
Q

What are the maximum of electrons can exist the valence shell or orbit

A

8

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7
Q

An electron in the outer orbit and easy dislodge for conduction of electricity is known as

A

Free electrons

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8
Q

Force of attraction and repulsion between electrons and protons is

A

electrostatic force

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9
Q

how many electrons exist in the outer orbit of a conductor

A

less than 4

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10
Q

how many electrons exist in the outer orbit of a insulator

A

more than 4

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11
Q

term to describe electrons in the outer orbit of all atoms

A

Valence electrons

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12
Q

What two forces are capable causing free electrons to move

A

Magnetic and electrostatic

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13
Q

are all valence electrons free?

A

NO

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14
Q

Are all electrons surrounding an atom are involved in the flow of electricity

A

NO

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15
Q

What type of electricity is produced by magnetism

A

AC

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16
Q

Two types of useful electricity

A

AC and DC

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17
Q

What type of current batteries produced

A

Direct

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18
Q

requirements for producing electricity by magnetism

A

magnetic field
conductor
motion

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19
Q

Two types of electricity

A

Non-useful, useful

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20
Q

Current that can change in magnitude but not direction

A

DC

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21
Q

Current that continuously changes in magnitude and periodically changes in direction

A

AC

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22
Q

2 forces that drive electrons

A

electrostatic force

magnetic force

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23
Q

A substance that can not be separated into different substances

A

element

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24
Q

Element with 4 electrons in the valence shell

A

semiconductor

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25
Q

Atom with the same number of electrons and protons

A

Balanced atom

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26
Q

An atom that’s missing an electron

A

Positive ion

27
Q

Smallest part of an element with the characteristics of an element

A

ATOM

28
Q

Smallets component of a substance that still contains the characteristics of a substance

A

Molecule

29
Q

An electron that can move from one atom to another

A

Free electron

30
Q

A chemical combination of two or more elements

A

Compound

31
Q

Atome that has gain or lost an electron

A

ION

32
Q

Force that holds an atom together

A

electrostatic

33
Q

Ability to an item to remain magnetized after a magnetic field contact

A

retentivity

34
Q

The strength of a magnetic field produced when current flows thru a conductor is directly proportion to the current flowing thru it

A

Is very true.

35
Q

Production of electricity

A 
Heat- DC
Pressure- AC
Light- DC
chemical-DC
Magnetism-AC
36
Q

Who first experience the phenomenon of static electiciti

A

Benjamin frankling

37
Q

Anything that has mass volume, physical substance

A

Matter

38
Q

what determines a good conductor or insulator at the atom

A

The ability to give up of receive electrons

39
Q

Best conductors and have on valence electron in the outer orbit

A

Gold and silver

40
Q

Best insulators their outer orbits are full with valence electrons

A

Neon and helium

41
Q

Best semiconductors have exactly 4 valence electrones

A

Silicon and germanium

42
Q

Atom with too many or too few valence electrons is an

A

ION

43
Q

Crystals under pressure can cause current to flow is known as

A

Piezoelectric effect use in microphones

44
Q

Michael Faraday discover

A

magnetic field

45
Q

Magnetic substances composed of a small areas where groups of atoms are aligned like the poles of a magnet its known as

A

Magnetic domains

46
Q

The field of force existing between the poles of a magnet is

A

magnetic filed

47
Q

Magnetic flux that is assumed to travel from north to south pole in a magnet is known as

A

Magnetic force

48
Q

is known as a natural magnet

A

Lodestones

49
Q

Magnetic force is also known as

A

Magnetic flux

50
Q

Term in which a substance carries ease magnetic lines of flux

A

Permeability

51
Q

Is the oposition that a substance has to magnetic lines of flux

A

Reluctante

52
Q

Force which causes magnetic force to travel through a substance

A

Magnetomotive force

53
Q

The unit of magnetic flux which represents 1 line of force

A

Maxwell

54
Q

Measure of flux density which is equal to 1 maxwell/square centimeter

A

Gauss

55
Q

Unit of flux density which is equal to 10,000 gauss/ squared centimeter of cross sectional area

A

Tesla

56
Q

Space or substance transversed by magnetic line of force

A

Magnetic circuit

57
Q

Examples of electromagnets

A

Solenoids and relays

58
Q

Is the direct flow of electrons from one atom to another

A

electrical current

59
Q

The push or pressure felt in a conductor that ultimately moves the electrons in a flow

A

Electromotive force EMF

60
Q

EMF is produced by

A 
Pressure
Light
Chemical action 
heat
Magnetism
61
Q

Unit of energy

A

Joule

62
Q

defined as the ability to do work

A

energy

63
Q

Ohms law

A

Current is directly proportional to the voltage and inversily proportional to the resistance

BASIC ELECTRICITY (2 decks)

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