Module L Unit 2: Analog and Digital Signals
Authored by Natasha Gault
Science
8th Grade
NGSS covered
Used 3+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A signal is
a radio wave with an unchanging amplitude and frequency.
a radio wave with an unlimited range.
a wave that can only be generated in analog.
anything that carries information and can be detected.
Tags
NGSS.HS-PS4-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an analog signal?
A signal that is represented by continuous waves.
A signal that is represented by discrete values.
A signal that can only represent two values.
A signal that cannot be easily converted to digital form.
Tags
NGSS.HS-PS4-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a digital signal?
A signal that varies over a continuous range.
A signal that is represented by binary numbers.
A signal that can only be transmitted over analog media.
A signal that is less accurate than an analog signal.
Tags
NGSS.HS-PS4-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process is used to convert an analog signal to a digital signal?
Digital-to-Analog Conversion
Analog-to-Digital Conversion
Signal Processing
Binary Encoding
Tags
NGSS.HS-PS4-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During the Digital-to-Analog Conversion process, what is primarily generated?
Binary numbers
Continuous waves
Discrete steps
Quantum bits
Tags
NGSS.HS-PS4-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a major advantage of digital signals over analog signals?
Higher susceptibility to noise
Continuous variation
Easier to process and compress
Requires more bandwidth
Tags
NGSS.HS-PS4-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a disadvantage of analog signals?
They can be easily encrypted.
They are more susceptible to noise and distortion.
They can be easily compressed.
They require less bandwidth.
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