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1
Q

An atom is electrically neutral, or ____ when it has an equal number of protons and electrons.

A

Balanced

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2
Q

An atom that gains or loses an electron is called a…?

A

Ion

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3
Q

This type of ion has one more proton than electrons and the atom has a positive charge.

A

Positive Ion

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4
Q

This type of ion has one more electron than protons and the atom has a negative charge.

A

Negative Ion

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5
Q

Materials that permit electrons to flow freely from particle to particle are known as ____.

A

Conductor

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6
Q

Nonconductive materials have very few free electrons and have high resistance to movement or electricity are called ____.

A

Insulator

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7
Q

Materials that are neither good conductors nor good insulators and have electrical characteristics that fall between those conductors and insulators are called ____.

A

Semiconductors

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8
Q

This term describes the force or electrical energy required to move electrons from one place to another.

A

Voltage

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9
Q

This term describes the movement of free electrons through a conductor and is measured in amperes.

A

Current

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10
Q

The ____ is a measure of the amount of electric charge passing a point per unit time and represents the flow of electrons in a conductor.

A

Amperes

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11
Q

The amount of opposition a device or material offers to the movement of electrons is known as ____.

A

Resistance

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12
Q

The term that is defined as the physical property of a circuit that opposes change to current flow.

A

Inductance

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13
Q

What is measured in watts and calculated by multiplying current times voltage?

A

Power

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14
Q

What is the unit of measurement for resistance?

A

Ohm

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15
Q

The unit of measurement for inductance is the _____.

A

henry

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16
Q

The following defines what?

The ability of a dielectric to store an electric charge.

A

Capacitance

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17
Q

The following defines what?

The opposition a device or material offers to the movement of electrons.

A

Resistance

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18
Q

The following defines what?

The tendency of an electrical conductor to oppose a change in the electric current flowing through it.

A

Inductance

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19
Q

The unit of measurement for capacitance is _____.

A

Farad

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20
Q

An atom with a different number of electrons and protons.

A

Ion

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21
Q

Particles that orbit around the nucleus in energy levels.

A

Electrons

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22
Q

The opposite of resistance.

A

Conductance

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23
Q

Movement of free electrons through a conductor.

A

Current

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24
Q

Neutral particle of an atom.

A

Neutron

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25
Element that opposes conduction of electricity.
Insulator
26
Positively charged particle of an atom.
Proton
27
Opposition to the movement of electrons.
Resistance
28
Element that allows electrons to flow freely
Conductor
29
Rate of doing work
Power
30
Matter between conductors and insulators
Semiconductor
31
Difference of potential
Voltage
32
The center of an atom
Nucleus
33
List the four major wave shapes:
Sawtooth, rectangular, square and sine
34
The unit of measurement of the number of cycles per second is
Hertz (Hz)
35
Peak amplitude of an AC sine wave refers to
peak voltage
36
Current which is constantly changing in amplitude and periodically reversing polarity.
AC
37
Two sine waves that rise and fall through zero reference at the same time.
In-phase
38
Two sine waves that do not pass through the zero reference at the same.
Out-of-phase
39
Maximum amplitude of current or voltage
Peak-to-peak
40
360 degrees of a sine wave
Cycle
41
The stationary magnetic field
Stator
42
Coils of wire wrapped around a metal core on a rotating shaft
Rotor
43
The effective value of a sine wave of voltage or current will do the same amount of work as...?
DC voltage
44
The phase relationship of two sine waves, one at 0 degrees and the other at its peak negative value at the same time, is...?
out of phase
45
RF is an abbreviation for...?
Radio Frequencies
46
What are the microwave frequencies?
1 GHz to 300 GHz
47
The two most common AC power frequencies throughout the world are ___ and ___.
50Hz 60Hz
48
What factors affect capacitance?
1. Dielectric constant (k) 2. Plate Area (A) 3. Distance between plates (d)
49
What is the formula for capacitance (C)?
50
If you increase the size of the capacitor plates the capacitance will...?
increase
51
The capacitance of a capacitor is directly proportional to ___ and ___, however inversely proportional to the ____.
1. Dielectric constant (k) 2. Plate Area (A) 3. Distance between plates (d)
52
What factors affect inductance?
1. Number of turns in the coil 2. Core cross sectional area 3. Length of the coil 4. Type of core material
53
Inductance will increase when you increase either the number of ___, the cross sectional area of the ____, or the ____ of the core.
turns core permeability
54
Inductance is ____ proportional to the length of the coil.
inversely
55
Define the term resistance
The opposition to the flow of current a resistor creates
56
Distance in meters of one cycle
wavelength
57
a symmetrical non sinusoidal wave with equal alternations
square
58
moveable coil in a generator
rotor
59
frequency range from 3KHz-300Gz
radio
60
The amount of AC voltage that will do the same amount of work as a DC voltage
RMS
61
Frequency range from 15-20KHz
audio
62
Also known as ramp voltage
sawtooth
63
frequencies include infrared, visible and ultraviolet
optics
64
when two sine waves of the same frequency pass through zero and reach their positive peaks at the same time, they are...?
in phase
65
distance from zero to highest or lowest point on a sine wave
peak
66
frequency range extends from 10^23HZ
x-ray

Module 2 (3 decks)

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