
8.2.6 Analog vs. Digital

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Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is an analog signal?
Back
An analog signal is a continuous signal that represents physical measurements. Examples include sound waves and light waves.
2.
FLASHCARD QUESTION
Front
What is a digital signal?
Back
A digital signal is a discrete signal that represents data as binary values (0s and 1s). Examples include computer data and digital audio.
3.
FLASHCARD QUESTION
Front
What is an example of digital signal storage?
Back
Examples include CDs, DVDs, and USB drives.
4.
FLASHCARD QUESTION
Front
What is a disadvantage of analog signals?
Back
When copied, the quality of analog signals decreases.
5.
FLASHCARD QUESTION
Front
How does an analog signal look like?
Back
An analog signal is represented as a continuous wave.
6.
FLASHCARD QUESTION
Front
What is an example of an analog device?
Back
A VHS tape is an example of an analog device.
7.
FLASHCARD QUESTION
Front
What is an example of a digital device?
Back
A Blu-Ray DVD is an example of a digital device.
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