Lesson Worksheet: Communication and Information Science • 4th Grade
In this worksheet, we will practice identifying how people communicated in the past and describing how waves are currently used to communicate and send information.
Q1:
Fill in the blank: Morse code is a pattern of signals that can be used for messages. A is used to send these signals through wires electronically.
- Acomputer
- Bsatellite
- Ctelephone
- Dtelegraph
Q2:
Which of the devices below uses radio waves for long-distance communication?
- AComputer
- BTelegraph
- CTelephone
- DCell phone
Q3:
Fill in the blank: An analog signal sends a continuous stream of information. A digital signal sends information using .
- Avibrations
- Ba pattern of sound waves
- Ca pattern of light waves
- Da pattern of digits
Q4:
Digital communication uses binary codes to represent information. Which of these is part of a binary code?
- APatterns
- BOnes
- CZeros
- DAll of the above
Q5:
Which of these is the process of writing instructions for a computer in a language it understands?
- ATransmitting
- BMessaging
- CReceiving
- DCoding
Q6:
Some devices and systems can be used to detect objects. Which of the following is used to detect objects underwater?
- ACell phones
- BSonar
- CX-rays
- DLidar
Q7:
Which device does not receive information digitally?
- AAn analog radio
- BA laptop
- CA cell phone
Q8:
The device below uses radio signals to communicate. Which part of this device sends out the signals?
- AAntenna
- BTransmitter
- CReceiver
Q9:
Pick the function of an antenna.
- AReceiving a signal
- BBlocking a signal
- CSending out a signal
- DTranslating a signal
Q10:
Sally is listing different ways of communication in this table.
| Group 1 | Telegraph | Radio |
|---|---|---|
| Group 2 | Telephone | Cell phone |
To which group can communication satellites be added?
- AGroup 2
- BGroup 1
- CNeither of the groups
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