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Flashcards in Diathermy Deck (82)
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1

Energy is transmitted by

- Oscillatory motion in the form of magnetic waves
- Propagated through space

2

Electromagnetic radiation consists of

- Alternating magnetic and electric fields varying over time
- Oriented perpendicular to each other

3

Both electric and magnetic fields are the consequence of

- Attraction and repulsion of electric charges

4

Magnetic effect is caused by

- Moving electric charges

5

Electric field is caused by

- Stationary electric charges

6

All EM waves travel through space at what speed

- 3x10^8 m/s
- Speed of light

7

Electromagnetic spectrum is composed of

- Various wave energies arranged in order
- Depicts EM waves

8

EM spectrum is grouped acc to

- Wavelength
- Frequency
- Energy

9

Wave length is defined as

- Distance from peak of one wave to peak of another
- Can be in nm or m

10

Enumerate EM waves on EM spectrum in order from widest to narrowest

- Radio
- Microwave
- Infrared
- Visible
- Ultaviolet
- Xray
- Gamma ray

11

Wavelength is ______ proportional to frequency.

- inversely

12

Energy unit of measurement

- Electron volt

13

Energy of photon is computed by

- Frequency x plank's constant

14

Ionization is process of

- Removing ion from orbit

15

(Ionizing/non-ionizing) can cause harm

ionizing

16

What waves are under non-ionizing

- Radio
- Microwave
- Infrared
- Visible
- UV (the wider waves)

17

If ionization is > ? Then it is ionizing agents

10 electronvolt

18

Fates of em waves

- Reflected
- Refracted
- Transmitted
- Absorbed

19

Diathermy is what wave

- Lower frequency Radio and microwaves

20

Diathermy uses ___ as energy transfer

- Radiation

21

Diathermy means

- To heat through

22

Who first used diathermy and when

- 1892
- Jacques arsene d arsonval

23

Diathermy is the use of ___ and ___ waves that produces heat

- Shortwave
- Microwave

24

Diff types of diathermy

- Longwave
- Shortwave
- Microwave

25

Long wave is still being used. T or F.

False

26

Shortwave wavelength

- 30-3 m

27

Shortwave frequency

- 10-100 mhz

28

Microwave wavelength

- 3-0.03 m

29

Microwave frequency

- 300 mhz-300 ghz

30

Frequency bands of shortwave

- 13.56 mhz
- 27.13 mhz
- 40.68 mhz