Digital and Analog Waves

Digital and Analog Waves

8th Grade

15 Qs

quiz-placeholder

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Digital and Analog Waves

Digital and Analog Waves

Assessment

Quiz

Science

8th Grade

Practice Problem

Hard

NGSS
MS-PS4-3, MS-PS4-1

Standards-aligned

Created by

Lisa Thompson

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which best compares the reliability of analog signals and digital signals?

Only analog signals are reliable

Analog signals are more reliable than digital signals

Digital signals are more reliable than analog signals

Both types of signals are equally reliable

Tags

NGSS.MS-PS4-3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

For which type(s) of signals does noise alter the original information?

analog only

digital only

both analog and digital

neither analog nor digital

Tags

NGSS.MS-PS4-3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An analog signal is one that changes continuously

True

False

Tags

NGSS.MS-PS4-3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Analog encoding sends or stores information using quantities that

can vary continuously.

can only have specific values.

are separated by consistent numbers.

store waves’ crest and trough sizes in small steps.

Tags

NGSS.MS-PS4-3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Digital encoding sends or stores information using quantities that

can vary continuously.

can only have specific values.

have no numeric gaps between one another.

create smooth curves inside a sound wave.

Tags

NGSS.MS-PS4-3

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is an advantage of digital over analog?

Digital controls allow you more control over exact movement and direction.

Digital calculations give you more accurate measurements.

Digital controls move objects in predictable, exact increments.

Digital devices generate stronger, more precise signals and waves.

Tags

NGSS.MS-PS4-3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

AM and FM radio stations

switch between analog and digital signals to broadcast sound waves.

transmit sound using multiple frequency ranges, including radio waves, visible light, and ultraviolet light.

change the amplitude or frequency of waves to encode sounds.

convert broadcasts into binary code.

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