Application of Electromagnetic Waves

Question 1

transmission of energy in the form of waves and particles through space or material medium

Answer 1

radiation

Question 2

radiation as sufficient energy to interact with matter, especially to human body and produce ions

Answer 2

ionizing radiation

Question 3

wireless communication

Answer 3

radio waves

Question 4

produced by making electrons vibrate in an antenna

Answer 4

radio waves

Question 5

a radio station sound converted by a microphone into patterns of electric current variations

Answer 5

audio frequency

Question 6

high frequency radio waves

Answer 6

radio frequency

Question 7

high frequency waves provide a _____________________ of broadcasting

Answer 7

high quality

Question 8

longest wavelength

Answer 8

radio wave

Question 8

satellite communication

Answer 8

microwaves

Question 9

can penetrates the atmosphere of the earth

Answer 9

microwave

Question 10

R.A.D.A.R

Answer 10

Radio Detection and Ranging

Question 11

radar system composts of __

Answer 11

antenna
transmitter
receiver

Question 12

terrestrial communication

Answer 12

microwave

Question 13

invisible heat

Answer 13

infrared waves

Question 14

info bout infrared waves

Answer 14

the amount and wavelength of radiation depend on the temperature

Question 15

infrared waves:

below 500 deg celcius
above 500 deg celcius

Answer 15

only infrared radiation
infrared radiation and visible light

Question 16

shades of blue and green color indicate regions of?

Answer 16

colder temperatures

Question 17

red and yellow indicate _____

Answer 17

warmer

Question 18

remote control

Answer 18

infrared radiation

Question 19

night vision goggles

Answer 19

infrared radiation

Question 20

essential for photosynthesis

Answer 20

visible light

Question 21

production of light

incandescent-
fluorescent-
neon light-

Answer 21

-produced by heat
-cooler less energy
-same with fluorescent but with other neon gas

Question 22

heat energy

Answer 22

ultraviolet radiation

Question 23

main source of ultraviolet radiation

Answer 23

sun

Question 24

uv lamp

Answer 24

ultraviolet radiation

Question 25

penetrate radiation

Answer 25

x-ray

Question 26

shorter wavelength but higher energy than ultraviolet

Answer 26

x ray

Question 27

who discovered xray

Answer 27

willem conrad renkin, 1895

Question 28

used in industry to inspect welded joints for faults

Answer 28

x ray

Question 29

nuclear energy

Answer 29

gamma rays

Question 30

radiotherapy

Answer 30

gamma rays

Question 31

used for sterilization of drinking water

Answer 31

gamma rays