Communication and Waves
Authored by Lisa Thompson
Science
8th Grade
NGSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Radios, televisions, cell phones, and wireless computer networks are examples of technologies that benefit humans. How are they beneficial?
They transmit and receive signals with zero percentage loss.
They use signals that do not require mediums to travel.
They relay information without direct human interaction
They use low-energy radio signals.
Tags
NGSS.MS-PS4-3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is incorrect about cell phone technology.
Cell phones use radio signals.
Cell phones send and receive signals without mediums.
Cell phones transfer information with transmitters and receivers.
Cell phones transfer large amounts of data that cannot be stored.
Tags
NGSS.MS-PS4-1
NGSS.MS-PS4-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why is the use of high-frequency radio waves a beneficial technological advancement for humans?
They have the shortest wavelengths.
They carry more information.
They travel longer distances.
They do not require mediums to transmit.
Tags
NGSS.HS-PS4-5
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Which features of digital communication are correct?
Digital signals carry less information per second.
Information can be stored for future recovery.
Digital signals can be transmitted over long distances.
Signal loss happens less frequently.
Tags
NGSS.MS-PS4-3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What do all signals that are used to communicate have in common?
They all involve light waves
They all send information
They all use printed words
They all use a series of sounds
Tags
NGSS.MS-PS4-3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following does NOT send or receive signals carried by electromagnetic waves
cell phone
radio
talking in person
garage door opener
Tags
NGSS.MS-PS4-3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The following is the graph of ___________________________
An analog signal
A digital signal
Tags
NGSS.MS-PS4-3
NGSS.MS-PS4-1
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