Mod.L Unit2 Lesson1

Mod.L Unit2 Lesson1

7th Grade

7 Qs

quiz-placeholder

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Mod.L Unit2 Lesson1

Mod.L Unit2 Lesson1

Assessment

Quiz

Science

7th Grade

Practice Problem

Medium

NGSS
MS-PS4-3, MS-PS4-2

Standards-aligned

Created by

Dennis Webster

Used 96+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Morse code represents letters as combinations of different lengths of waves. Which type of wave was used in telegraphs to communicate in Morse code?

light

radio

sound

electricity

Tags

NGSS.MS-PS4-2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the most accurate definition of communication?

a tool by which an individual can receive information

a device by which messages are encoded and decoded

a skill by which an individual can send out information

a process by which information is exchanged between individuals

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Throughout history, encoding has been used to convert information from one system of communication into another. What was the main purpose of early communication devices that used encoding?

to communicate at a distance

to communicate with enemies

to communicate about a natural event

to communicate in different languages

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Different types of waves can be used to transmit information. Which type is the most common in modern communication devices?

sound

visible light

alternating current

electromagnetic waves

Tags

NGSS.MS-PS4-3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A communication device makes use of different frequencies of radio waves. Which one is considered as equivalent to each specific frequency at the receiving end?

code

signal

information

communication

Tags

NGSS.MS-PS4-3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In almost every modern means of communication, waves are used to transmit information. Which statement does not describe a characteristic of waves that makes them well-suited for this purpose?

Waves can move very quickly.

Waves only carry useful information.

Waves can hold large amounts of information.

Waves do not need to permanently move matter.

Tags

NGSS.MS-PS4-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Throughout history, people manipulated fire and smoke to send out a specific message. What is the role of a smoke signal in physical terms?

data

signal

wave

transmitter

Tags

NGSS.MS-PS4-2

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