Radiation Physics

Question 1

This is the central part of an atom

Answer 1

Nucleus

Question 2

These are positively charged particles

Answer 2

Proton

Question 3

These are neutral or have no charge particles

Answer 3

Neutrons

Question 4

These are the external orbiting structure and are negatively charged particles

Answer 4

Electrons

Question 5

This is the process of removing an electron from an atom

Answer 5

Ionization

Question 6

If an electron is displaced from an inner shell to an outer shell, the atom remains neutral but is at an excited state. What is this process called?

Answer 6

Excitation

Question 7

Unit of energy in the anatomic system is?

Answer 7

Electron volt (eV)

Question 8

How many joules is 1 eV equal to?

Answer 8

1.6x1019 joules

Question 9

This is the production of ions or the process of converting atoms into ions

Answer 9

Ionization

Question 10

When an electron is removed from an atom in the ionization process it results in an?

Answer 10

Ion Pair

Question 11

This is defined as radiation that is capable of producing ions by removing or adding an electron to an atom

Answer 11

Ionization Radiation

Question 12

What are the two classifications of ionization radiation?

Answer 12

a. Particulate radiation
b. Electromagnetic radiation

Question 13

Tiny particles of matter that possess mass and travel in straight lines and at high speeds

Answer 13

Particulate radiation

Question 14

These transmit kinetic energy by means of their extremely fast-moving, small masses

Answer 14

Particulate radiation

Question 15

These are fast moving electrons emitted from a nucleus of radioactive atoms

Answer 15

Beta particles

Question 16

These are streams of high-speed electrons that originate in an x-ray tube

Answer 16

Cathode rays

Question 17

These are emitted from the nuclei of heavy metals

Answer 17

Alpha particles

Question 18

These exist as two protons and neutrons without electrons

Answer 18

Alpha particles

Question 19

These are uncharged beams

Answer 19

Neutron beams

Question 20

These are charged beams

Answer 20

Proton beams

Question 21

Propagation of wave-like energy through space or matter

Answer 21

Electromagnetic radiation

Question 22

Energy that is propagating is accomplished by oscillating electric and magnetic fields positioned at right angles to one another

Answer 22

Sinus waves

Question 23

These are man-made or occur naturally

Answer 23

Electromagnetic radiation

Question 24

Name the 8 types of electromagnetic radiation

Answer 24

1. Cosmic rays
2. Gamma rays
3. X-rays
4. Ultraviolet rays
5. Visible light
6. Radar waves
7. Microwaves
8. Radiowaves

Question 25

This theory states that radiation is propagated in waves

Answer 25

Wave Theory

Question 26

This is the speed of wave

Answer 26

Velocity

Question 27

This is the distance between the crest of one wave and the crest of the next

Answer 27

Wavelength

Question 28

This is the number of wavelengths that pass a given point in a certain amount of time

Answer 28

Frequency

Question 29

This theory states that electromagnetic radiations exists as discrete bundles of energy called photons or quanta

Answer 29

Quantum theory

Question 30

These are bundles of energy without mass or weight that travels at the speed of light and contains a specific amount of energy

Answer 30

Photons

Question 31

What is the unit of photon energy?

Answer 31

Electron volts (eV)