Chapter 1: Essential Concepts Flashcards Preview

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Flashcards in Chapter 1: Essential Concepts Deck (58)
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1

Matter is...

anything that occupies space.

2

Mass is the...

quantity of matter described energy equivalence.

3

Weight is the force...

exerted on body caused by GRAVITY.

4

Energy is the...

ability to do work.

5

Potential Energy

ability to do work depending on position. (guillotine)

6

Kinetic Energy...

energy of motion.

7

Chemical Energy...

energy released during chemical rxn.

8

Electrical Energy...

done when e- moves through electric potential difference.

9

Thermal Energy...

heat. (energy of motion at molecular level)

10

Nuclear Energy...

contained within nucleus.

11

Electromagnetic Energy...

energy reflected/emitted from objects either in electrical or magnetic waves. (usually called radiation!)

12

Radiation

transfer of energy

13

Irradiated

Exposed

14

Ionizing Radiation

radiation capable of removing electron.

15

Ion pair

orbital electron and atom from which it was removed.

16

3 forms of ionizing radiation:

Xrays, Gamma Rays, UV radiation.

17

milliSieverts (mSv) expresses...

radiation exposure.

18

The natural environment gives off how many mSv annually?

3 mSv

19

Manmade average annual dose given is...

3.2 mSv

20

4 types of naturally occurring radiation:

Cosmic Rays, Terrestrial Radiation, Radionuclides, and Radon

21

Cosmic rays varies with...

altitude and latitude.

22

Terrestrial radiation comes from deposits of...

Uranium and Thorium and depends of geologic area.

23

What is the largest sources of natural ionizing radiation?

Radon

24

When uranium decays, what is produced?

Radioactive gas.

25

Radon emits what?

Alpha particles which only penetrate lungs.

26

What type of tube was Roentgen using during his discovery?

Crooke's Tube

27

Why did xraying back in the day take so long?

Electrical power was so low so lower voltage and milliamps.

28

Name 4 types of improvements to Xray

Intensifying screens, Double emulsion, Collimation, and Filtration

29

When was the Snook Transformer invented?

1907

30

When was the Coolidge tube invented?

1913, now a vacuum tube compared to gas filled before.