Ｗａｖｅ Ｃｏｍｍｕｎｉｃａｔｉｏｎ
Authored by Zach Amis
Science
8th Grade
NGSS covered
Used 3+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Remote controls enable users to adjust the volume and channel of televisions without having to touch the television. Which of these best describes the signals sent by remote controls to televisions?
potential energy
sound waves
electromagnetic waves
gravitational energy
Tags
NGSS.MS-PS4-3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes how wireless telephones are able to receive and produce sound from one person to another?
.
Electromagnetic waves are received and then vibrate a speaker which produces sound waves.
Sound waves are received and then vibrate a speaker which produces additional sound waves.
Electromagnetic waves are received and then vibrate a speaker which produces additional electromagnetic waves.
Sound waves are received and then vibrate a speaker which produces electromagnetic waves
Tags
NGSS.MS-PS4-2
NGSS.MS-PS4-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Scientists on Earth are able to communicate with rovers on Mars through their receivers, which can receive and process signals. Which of these best describes the signals sent and received by rovers?
sound waves
electromagnetic waves
potential energy
gravitational energy
Tags
NGSS.MS-PS4-2
NGSS.MS-PS4-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A music studio records music using digital technology instead of analog technology. Why does the music studio likely use digital technology for recording rather than analog technology?
Digital technology has been used longer than analog technology.
Digital technology can store information more reliably than analog technology.
Digital technology cannot be changed while analog technology can easily be modified.
Digital technology produces more background noise in recordings than analog technology.
Tags
NGSS.MS-PS4-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Global Positioning System, or GPS, uses a network of satellites that orbit the Earth to calculate and track locations. Which of the following best describes the signals sent and received by satellites?
electromagnetic waves
gravitational energy
sound waves
potential energy
Tags
NGSS.MS-PS4-2
NGSS.MS-PS4-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do people see distant events before they hear them?
Light travels faster than sound.
Sound travels faster than light.
Human brains can only process events in that order.
Human eyes are more sensitive than human ears.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The orca uses this behavior of waves to locate food.
Tags
NGSS.MS-PS4-2
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