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Unit 1: Communication
Test Description: From the book: God's Design for The Physical World: Inventions Technology
Instructions: Answer all questions to get your test result.
1) Why is the printing press such an important invention?
A
It allowed ideas and knowledge to be passed without the use of wires.
B
It allowed ideas and knowledge to be passed quickly and economically from one place or person to another.
C
It allowed ideas and knowledge to be passed through radio waves.
D
It allowed ideas and knowledge to be passed through fiber optics.
2) Who invented the printing press?
A
Marconi
B
Morse
C
Bell
D
Gutenberg
3) Who invented the telegraph?
A
Marconi
B
Morse
C
Gutenberg
D
Bell
4) Who invented the telephone?
A
Marconi
B
Morse
C
Bell
D
Gutenberg
5) Who sent the first radio transmission over a long distance?
A
Marconi
B
Morse
C
Fesseden
D
Hertz
6) Who sent the first sound message over the radio waves?
A
Hertz
B
Baird
C
Marconi
D
Fesseden
7) Who invented the television?
A
Hertz
B
Baird
C
Marconi
D
Fesseden
8) How is a telegraph message sent?
A
When the key is pressed it completes an electrical circuit, sending a pulse of electricity along a wire.
B
A series of dots and dashes that represent each letter of the alphabet as well as numbers and symbols.
C
The sound is converted into an electrical signal then transmitted over radio waves.
D
The voice is translated into radio signals then sent to satellites.
9) How is a cell phone message send differently than a regular telephone message?
A
The sound is converted into an electrical signal then transmitted over radio waves.
B
When the key is pressed it completes an electrical circuit, sending a pulse of electricity along a wire
C
A series of dots and dashes that represent each letter of the alphabet as well as numbers and symbols
D
The voice is translated into radio signals then sent to satellites.
10) Label the parts of the radio:
A
Microphone, RAM
B
Amplifier, Tuner
C
CRT, pixel
D
Facsimile, Resolution
11) Label the parts of the television:
A
Facsimile, Resolution
B
Microphone, RAM
C
CRT, Pixel
D
Amplifier, Tuner
12) How is a digital signal different from an analog signal?
A
Analog signals are continuous
B
Neither A or B
C
Digital signals are a series of pulses
D
Both A and B
13) How does the TV produce a visual image on the screen?
A
It sends information as electrical signals over the same lines as a telephone.
B
When the key is pressed it completes an electrical circuit, sending a pulse of electricity along a wire
C
The voice is translated into radio signals then sent to satellites.
D
The red, green, and blue signals -electron emitting guns -CRT -dots of phosphor glow.
14) What does fax mean?
A
Facsimile and xray
B
a close copy
C
an exact copy
D
None of the above
15) How is a fax similar to a telephone?
A
It sends information as electrical signals over satellites.
B
All of the above
C
It sends information as electrical signals over the same lines as a telephone.
D
It sends information as electrical signals over radio waves.
16) What is the -brain- of the computer?
A
CPU
B
RAM
C
Modem
D
Monitor
17) Tuners are needed for
A
Radio
B
Radio and TV
C
Neither
D
TV
18) The remote adding memory of a computer is the
A
CPU
B
Monitor
C
RAM
D
Modem
19) Fiber Optics are used to trasmsit these types of signals
A
Electrical
B
Radio
C
Light
D
Sound
20) Which of these devices are only input devices on a computer
A
Modem, CD, Keyboard, Microphone, Mouse
B
Hard drive, flash drive, Netword card
C
Monitor, Printer, RAM
D
All of the above.
*select an answer for all questions
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