Basic Physics for Radiography

Question 1

What are the three basic forms of matter:

Answer 1

Solid,LIquid,Gas

Question 2

The Quantity of matter that makes up any physical object

Answer 2

Mass

Question 3

The Law of Conservation

Answer 3

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.

Question 4

All matter is composed of “building blocks” called

Answer 4

Atoms

Question 5

The fundamental particles that compose atoms are:

Answer 5

Neutrons ,Protons and Electrons

Question 6

What forms the Nucleus:

Answer 6

Neutrons and Protons

Question 7

Electrons circle the nucleus in orbits called:

Answer 7

Shells

Question 8

The closest shell to the nucleus and most important :

Answer 8

K-Shell

Question 9

A substance made up of only one type of atom:

Answer 9

Element

Question 10

Three most common elements we may be familiar with are:

Answer 10

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

Question 10

Three most common elements we may be familiar with are:

Answer 10

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

Question 11

The greater the Atomic Number,

Answer 11

The greater the Mass and Density

Question 12

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

Answer 12

Protons and Neutrons in a Nucleus

Question 13

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

Answer 13

Tungsten

Question 14

Two or more atoms may combine chemically to form:

Answer 14

Molecules

Question 15

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

Answer 15

Chemical Compound

Question 16

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

Answer 16

Ion,Ionization

Question 17

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

Answer 17

Electromagnetic Energy

Question 18

Electromagnetic energy occurs in the form of a:

Answer 18

Sine Wave

Question 19

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

Answer 19

Amplitude

Question 20

Distance from one crest to the next crest

Answer 20

Wavelength

Question 21

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

Answer 21

Frequency

Question 22

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

Answer 22

Velocity

Question 23

Short Waves will have a

Answer 23

High Frequency

Question 24

Long waves will have a

Answer 24

Low Frequency

Question 25

X rays with greater energy have:

Answer 25

High Frequency and Short Wavelengths and are More Penetrating

Question 26

The smallest unit of electromagnetic energy is the:

Answer 26

Photon

Question 27

Resistance uses the unit of measure:

Answer 27

Ohm

Question 28

Current uses the unit of measure:

Answer 28

Ampere

Question 29

Potential Difference uses the unit of measure:

Answer 29

Volt

Question 30

Is constantly changing its electric current:

Answer 30

Alternating current (AC)

Question 31

Only moves in one direction in the electric current

Answer 31

Direct Current (DC)

Question 32

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

Answer 32

Rectification

Question 33

induced current is always:

Answer 33

Alternating Current (AC)

Question 34

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

Answer 34

The primary current

Question 35

The circuit that carries the induced current is called:

Answer 35

The secondary circuit

Question 36

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

Answer 36

Electromagnetic Induction

Question 37

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

Answer 37

A transformer

Question 38

Always flows from the primary to the secondary coils:

Answer 38

Electric Current

Question 39

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:

Answer 39

Step-Up Transformer

Question 40

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

Answer 40

Step-Down Transformer

Question 41

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

Answer 41

The Transformer Ratio

Question 42

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

Answer 42

Inversely

Question 43

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

Answer 43

amperage is decreased