
tere flashcard
Flashcard
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Science
•
12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are radio waves?
Back
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. They are used for communication, broadcasting, and various technologies.
2.
FLASHCARD QUESTION
Front
How do radio waves facilitate communication?
Back
Radio waves carry information through modulation, allowing for the transmission of voice, data, and video over long distances.
3.
FLASHCARD QUESTION
Front
What is an example of a device that uses radio waves?
Back
A mobile phone uses radio waves to communicate with cell towers, enabling voice calls and data transmission.
4.
FLASHCARD QUESTION
Front
What is the role of a microwave oven in relation to radio waves?
Back
A microwave oven uses microwave radiation, a type of radio wave, to heat food by causing water molecules to vibrate.
5.
FLASHCARD QUESTION
Front
What is NOT an application of radio waves?
Back
X-ray imaging is not an application of radio waves; it uses X-rays, which are a different part of the electromagnetic spectrum.
6.
FLASHCARD QUESTION
Front
What factors can weaken a radio wave signal?
Back
Obstacles like walls and buildings can weaken radio wave signals by absorbing or reflecting the waves.
7.
FLASHCARD QUESTION
Front
What is the frequency range of radio waves?
Back
Radio waves typically have frequencies ranging from 3 kHz to 300 GHz.
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