Basic Physics for Radiography Flashcards

1
Q

What are the three basic forms of matter:

A

Solid,LIquid,Gas

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

The Quantity of matter that makes up any physical object

A

Mass

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

The Law of Conservation

A

Matter can neither be created nor destroyed but can change its’ form.
Energy can neither be created nor destroyed but it can change it’s form.

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

All matter is composed of “building blocks” called

A

Atoms

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

The fundamental particles that compose atoms are:

A

Neutrons ,Protons and Electrons

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

What forms the Nucleus:

A

Neutrons and Protons

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

Electrons circle the nucleus in orbits called:

A

Shells

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

The closest shell to the nucleus and most important :

A

K-Shell

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

A substance made up of only one type of atom:

A

Element

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

Three most common elements we may be familiar with are:

A

Calcium(Ca),Iodine(I) and lead (Pb)

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

Three most common elements we may be familiar with are:

A

Calcium(Ca),Iodine(I) and lead (Pb)

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

The greater the Atomic Number,

A

The greater the Mass and Density

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

The mass number of the element is the combined total of:

A

Protons and Neutrons in a Nucleus

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

The most important element used in production of X-rays and element inside of X-ray tube where X-rays are created:

A

Tungsten

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

Two or more atoms may combine chemically to form:

A

Molecules

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

A substance that consists of only one type of molecule is called:

A

Chemical Compound

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

When a neutral atom gains or loses an electron and is said to be the process:

A

Ion,Ionization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Consist of Light,X-Rays,Radiowaves,Microwaves ,and other forms of energy:

A

Electromagnetic Energy

18
Q

Electromagnetic energy occurs in the form of a:

A

Sine Wave

19
Q

The distance between the crest and the trough of the wave (Its height) is called:

A

Amplitude

20
Q

Distance from one crest to the next crest

A

Wavelength

21
Q

The number of times per second that a crest passes a given time:

A

Frequency

22
Q

Electromagnetic energy moves through space at the ____ (speed) of approximately 186,000

A

Velocity

23
Q

Short Waves will have a

A

High Frequency

24
Q

Long waves will have a

A

Low Frequency

25
Q

X rays with greater energy have:

A

High Frequency and Short Wavelengths and are More Penetrating

26
Q

The smallest unit of electromagnetic energy is the:

A

Photon

27
Q

Resistance uses the unit of measure:

A

Ohm

28
Q

Current uses the unit of measure:

A

Ampere

29
Q

Potential Difference uses the unit of measure:

A

Volt

30
Q

Is constantly changing its electric current:

A

Alternating current (AC)

31
Q

Only moves in one direction in the electric current

A

Direct Current (DC)

32
Q

AC can be converted so that is flows in one direction only:

A

Rectification

33
Q

induced current is always:

A

Alternating Current (AC)

34
Q

The circuit that is connected to the power supply is called:

A

The primary current

35
Q

The circuit that carries the induced current is called:

A

The secondary circuit

36
Q

A current produced because of a voltage production due to a changing magnetic field:

A

Electromagnetic Induction

37
Q

Consistency of primary and secondary coils,usually surrounding an iron core:

A

A transformer

38
Q

Always flows from the primary to the secondary coils:

A

Electric Current

39
Q

When there are most windings in the secondary coil than in the primary coil,the voltage on the secondary side is greater,and the transformer is called:

A

Step-Up Transformer

40
Q

The secondary side has fewer turns,the secondary voltage will be less than the primary voltage and the transformer is called:

A

Step-Down Transformer

41
Q

A Transformer always increases or decreases the incoming voltage by a set multiple called:

A

The Transformer Ratio

42
Q

Kilovoltage and Amperage are _____ proportional while flowing through the transformer:

A

Inversely

43
Q

A Step-Down transfer increases voltage from primary to secondary,

A

amperage is decreased