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4.PS4.3 digital devices use waves

Authored by GREGORY DILLENDER

Science

4th Grade

NGSS covered

Used 14+ times

4.PS4.3 digital devices use waves
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sonography uses ______________, or high-frequency sound waves, to produce images of the inside of the human body.

microwaves

polar waves

light

ultrasound

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Select two ways that a person communicating with his or her voice can be compared to radio communication.

A radio transmitter is like a person’s ear because both send and receive information.

A radio transmitter is like a person’s voice because both send information.

A radio receiver is like a person’s brain because both convert patterns into usable information.

A radio receiver is like a person’s voice because both take in usable information.

Tags

NGSS.MS-PS4-3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What kind of waves are used with echolocation?

sound waves

light waves

polar waves

kinetic waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do whales, bats, and dolphins use echolocation?

to scare away predators

to orient themselves and find food

to attract mates

to tell other animals where they are

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An echo is heard when sound waves are ______________.

changed in the Doppler effect

absorbed by the material

moving through empty space

reflected from a surface

Tags

NGSS.MS-PS4-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An echo is an example of a sound wave being _________.

transmitted

absorbed

reflected

surfed

Tags

NGSS.MS-PS4-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which best describes how computers send messages?

as patterns of ones and zeros

as light waves through the air

as patterns of sound waves

as Morse code messages

Tags

NGSS.MS-PS4-3

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