WorksheetsWireless Communication
Total questions: 15
Worksheet time: 9mins
Name
Class
Date
1.
What is orbiting Earth that receive radio, television, and telephone signals and then transmit them around the world?
a)
GPS
b)
Communication Satellite
c)
Transmitter
d)
Cell Phone Tower
2.
How do FM waves travel?
a)
As changes in the frequency of the wave
b)
As changes in the amplitude of the wave
c)
As changes in the wavelength of the wave
d)
As changes in the resonance of the wave
3.
Which waves pass through the atmosphere and they are not reflected back toward Earth?
a)
FM
b)
AM
c)
Radio
d)
Microwa
4.
In AM waves what remains constant?
a)
Frequency
b)
Amplitude
c)
Wavelength
d)
Crests
5.
Which waves can reach great distances (Waves go into atmosphere and reflect back to Earth so that can move around the curvature of Earth)?
a)
FM
b)
AM
c)
Radio
d)
Microwaves
6.
What waves carry information to your TV and radio ?
a)
Radio
b)
Microwaves
c)
Gamma
d)
AM
7.
What relays signals it receives from Earth back to other receivers?
a)
Tower
b)
Cell Phone
c)
Transmitter
d)
Power Station
8.
What must radio waves move around? Select the best answer
a)
The curvature of Earth
b)
The population of people
c)
The population of animals
d)
Trees and other plants
9.
What types of waves do cell phones use?
a)
Radio waves
b)
Gamma Rays
c)
Microwaves
d)
Ultraviolet Rays
10.
How can cell phones make long distance calls?
a)
Strong Wifi signal
b)
Good reception
c)
Satellite telephone systems
d)
The government
11.
What is the correct way a cell phone call goes out?
a)
The phone call goes out, transmits through microwaves, then moves to the central hub. Then the signals go to the nearest tower to the receiver of the call
b)
The phone call goes out, transmits through radio waves, then moves to the central hub. Then the signals go to the nearest tower to the receiver of the call
c)
The phone call goes out, transmits through microwaves, then moves to the tower. Then the signals go to the nearest hub to the receiver of the call
d)
The phone call just magically gets to the other phone
12.
What does GPS tell you?
a)
The time
b)
Your exact location
c)
How much money you have
d)
What the weather is like
13.
What are crests and troughs of a standing wave?
a)
Antinodes
b)
Nodes
c)
Wavelength
d)
Resonance
14.
What are points on a standing wave where the amplitude of the wave is zero?
a)
Antinodes
b)
Nodes
c)
Refraction
d)
Reflection
15.
What is faster the speed of light or the speed of sound?
a)
The speed of light
b)
The speed of sound
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