Digital vs. Analog Signals 2 Quiz
Authored by Victor Moreno
Science
8th Grade
NGSS covered
Used 4+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between analog and digital signals?
Analog signals are continuous, digital signals are discrete.
Analog signals use binary code, digital signals do not.
Analog signals are more reliable than digital signals.
Digital signals are always faster than analog signals.
Tags
NGSS.MS-PS4-3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can an analog signal be converted into a digital signal?
By using a thermometer.
By converting it to a continuous wave.
Through a process called sampling.
By using a digital clock.
Tags
NGSS.MS-PS4-3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key advantage of digital signals over analog signals?
They are more colorful.
They can be easily corrected to remove noise.
They require no power to transmit.
They are always cheaper to produce.
Tags
NGSS.MS-PS4-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a digital signal?
A sound wave from a record player.
A radio wave from an AM station.
A continuous light spectrum.
A binary code of 1s and 0s.
Tags
NGSS.MS-PS4-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does binary code consist of?
A series of musical notes.
A series of colors.
A series of letters and numbers.
A series of 1s and 0s.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why might NASA prefer digital signals for space communication?
They travel faster than light.
They are cheaper to send.
They are easier to decode by aliens.
They can be corrected to remove noise over long distances.
Tags
NGSS.MS-PS4-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process of converting an analog signal to digital called?
Broadcasting
Filtering
Sampling
Amplifying
Tags
NGSS.MS-PS4-3
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