Digital vs. Analog Signals
Flashcard
•
Science
•
6th - 8th Grade
•
Easy
Barbara White
Used 1+ times
FREE Resource
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7 questions
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1.
FLASHCARD QUESTION
Front
Signal Noun
[sig-nuhl]
Back
Signal
A wave pulse that can be transmitted or received to carry a message or information from one point to another.
Example: Sound waves are converted into radio signals and transmitted to an antenna.
2.
FLASHCARD QUESTION
Front
Analog Signal Noun
[an-uh-log sig-nuhl]
Back
Analog Signal
A signal made up of continuously streaming data, where the value of the signal varies smoothly and constantly over time.
Example: A wave diagram showing continuous variation, illustrating how analog signals change smoothly over time.
3.
FLASHCARD QUESTION
Front
Digital Signal Noun
[dij-i-tuhl sig-nuhl]
Back
Digital Signal
A signal that sends information in discrete segments or intervals using two or more distinct values, like on and off.
Example: A digital signal shown as a series of 0s and 1s, representing on/off states over time.
4.
FLASHCARD QUESTION
Front
Binary Code Noun
[by-nair-ee kohd]
Back
Binary Code
A language used by computers to communicate information, representing data using only two symbols, typically the digits 0 and 1.
Example: The image shows how binary digits represent powers of two to form a number.
5.
FLASHCARD QUESTION
Front
Modem Noun
[moh-duhm]
Back
Modem
A device that converts digital signals into analog signals for transmission and converts received analog signals back into digital ones.
Example: The image shows modems converting digital signals to analog for transmission and back to digital, with labeled arrows.
6.
FLASHCARD QUESTION
Front
Frequency Noun
[free-kwuhn-see]
Back
Frequency
A characteristic of a wave that describes how often it varies or repeats over a certain amount of time.
Example: The image shows high and low frequency waves, demonstrating how often waves repeat over time.
7.
FLASHCARD QUESTION
Front
Electromagnetic Wave Noun
[uh-lek-troh-mag-net-ik weyv]
Back
Electromagnetic Wave
A type of wave, like visible light, that consists of electric and magnetic fields and can be transmitted through space.
Example: Shows electric and magnetic fields in electromagnetic waves, highlighting how they propagate through space.
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