What is the primary method of producing radio waves?

Radio Waves and Optical Fibers

Interactive Video
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Physics, Science, Computers
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9th - 10th Grade
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Hard

Patricia Brown
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using a direct voltage
Using an alternating voltage
Using a static charge
Using a constant current
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are radio and microwaves categorized?
By their frequency
By their speed
By their amplitude
By their wavelength
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key advantage of using shorter wavelength radio waves?
They have a longer range
They are less expensive to produce
They are more stable
They carry more information
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of radio wave is used for traditional TV broadcasts?
Wavelengths less than 1 meter
Wavelengths between 1 and 100 meters
Wavelengths greater than 100 meters
Wavelengths exactly 1 meter
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are longer wavelength radio waves used for international broadcasts?
They are less prone to interference
They have a shorter range
They carry more information
They have a larger range
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical wavelength used by mobile phones to communicate with local masts?
50 centimeters
30 centimeters
10 centimeters
100 centimeters
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a concern regarding mobile phone radiation?
It may lead to brain heating
It causes battery drain
It can cause immediate burns
It disrupts radio signals
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