Unit 3 Test Review
Authored by Daniel DeFreese
Science
8th Grade
NGSS covered
Used 29+ times
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key characteristic of analog signals?
They can only take on binary values
They have infinite possible values
They are always digital in nature
They never degrade over distance
Tags
NGSS.MS-PS4-3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which signal type is primarily used in modern computers?
Natural signals
Continuous signals
Digital signals
Wave signals
Tags
NGSS.MS-PS4-3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of signal would a vinyl record use?
Electronic signal
Binary signal
Digital signal
Analog signal
Tags
NGSS.MS-PS4-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an advantage of digital storage?
It can be compressed
It needs constant power
It requires more space
It can't be copied
Tags
NGSS.MS-PS4-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are human voices naturally categorized?
Bionic signals
Analog signals
Binary signals
Digital signals
Tags
NGSS.MS-PS4-3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a disadvantage of digital signals?
Cannot be stored
Cannot be encrypted
Always low quality
More complex systems
Tags
NGSS.MS-PS4-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which best describes digital signals' appearance?
Curved and smooth
Random patterns
Step-like appearance
Circular patterns
Tags
NGSS.HS-PS4-2
NGSS.HS-PS4-5
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