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Science-Ch.18-Part 5
Test Description: Electromagnetic waves
Instructions: Answer all questions to get your test result.
1) The sun emits mainly _______________ and visible light.
A
carrier waves
B
gamma rays
C
infrared waves
D
ultraviolet radiation
2) _________________ are the hardest to stop and therefore have the _____________________frequency.
A
Ultraviolet radiation, highest
B
X-rays, highest
C
Gamma rays, lowest
D
Gamma rays, highest
3) Electromagnetic radiation of a higher frequency than visible light is known as ________________________.
A
gamma radiation
B
ultraviolet radiation
C
beta radiation
D
x-rays
4) Electromagnetic radiation of a lower frequency than visible light is _______________________.
A
beta radiation
B
ultraviolet radiation
C
gamma radiation
D
infrared radiation
5) _________________ light has the shortest wavelength.
A
Red
B
Yellow
C
Blue
D
Green
6) The light with the longest wavelength has the ______________ frequency
A
mid-range
B
highest
C
lowest
D
both the lowest and the highest
7) The light with the shortest wavelength has the _______________ frequency.
A
highest
B
both the lowest and highest
C
lowest
D
mid-range
8) The letters in AM in AM radio stand for _______________ modulation.
A
amplitude
B
frequency
C
pitch
D
carrier
9) Amplitude modulation means that the amplitude of the ____________________ is changed to transmit information.
A
microwave
B
radio wave
C
carrier wave
D
infrared wave
10) FM stands for ____________________ modulation.
A
infrared
B
amplitude
C
pitch
D
frequency
11) As you turn the dial on a radio, you pick up different frequencies. Each station is assigned its own frequency known as that station's __________________________.
A
microwave
B
infrared wave
C
carrier wave
D
radio wave
12) Is this the end?
A
not sure
B
yes
C
no
D
maybe!
*select an answer for all questions
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