Science Finals

Question 1

Method of locating absolute location

Answer 1

Trilateration

Question 2

Range of energies that have clear wavelengths and frequency

Answer 2

Electromagnetic spectrum

Question 3

-covers a wide range of wavelengths
-have the longest wavelengths

Answer 3

Radio waves

Question 4

German physicist that verified maxwell theories

Answer 4

Heinrich Hertz

Question 5

2 methods of sending audio info in radio waves

Answer 5

1. Amplitude modulation
2. Frequnecy modulation

Question 6

Radio stations change amplitude of radio waves they transmit by feeding information

Answer 6

Amplitude modulation

Question 7

Modulate the frequency of the carrier signal

Answer 7

Frequency modulatiom

Question 8

Characterized by medium frequency

Answer 8

AM radio frequency band

Question 9

Considered a region of very high frequency

Answer 9

FM radio frequency band

Question 10

Also falls on Vhf region

Answer 10

Television band

Question 11

Use radio waves in uhf

Answer 11

Cellular phones

Question 12

-Have long wavelengths that measure to 1khz to 1000ghz
-used for communication like long distance radio-relay systems

Answer 12

Microwaves

Question 13

-Adjacent to low frequency, long wavelength end of visible spectrum
-produced by vibration of atoms

Answer 13

Infrared radiation

Question 14

Occupies a small portion in electromagnetic spectrum

Answer 14

Visible light

Question 15

Produced by special lamps and extremely hot bodies

Answer 15

Ultraviolet radiation

Question 16

Have short wavelengths
-produced when high speed electrons are stopped by hard metal

Answer 16

X-rays

Question 17

-Have the shortest wavelengths and highest frequency
-high penetrating power
-treats diseased like cancer

Answer 17

Gamma rays