Communication
Which is a modern form of communication?
A. cellphone B. cave paintings C. telegraph
A. Cell phone
T or F Waves transfer energy and not matter?
True
All phones and electricity stop working during a windstorm. _______would be a good way to communicate with a neighbor without going outside.
Light
What is the worldwide database called?
A. The Internet B. Global Data Base C. The worldwide data storage
A. The Internet
What is Morse code.
A way to communicate using dots and lines.
What does S-O-S mean?
A. Save our selves B. Save our ship C. It doesn't mean anything
C. It doesn't mean anything
Why was the mail company called the Pony Express?
A. Only boys could be hired B. Horseback riders delivered the mail C. Ponytails were a part of the uniform.
B. Horseback riders delivered the mail
What is a modern technology similar to Morse code?
A. email B. text C. radio
B. Text
Why are radio waves a good way to transmit information over long distances?
A. They cannot be intercepted B. They do not degrade C. They are very loud
B. They do not degrade
Why is Morse code not used as much today?
A. It cannot be used with a smartphone B. Its a dead language C. There are faster ways to communicate
C. There are faster ways to communicate
What is one property of a wave?
A. They are hard to detect B. They can travel long distances C. They cannot be decoded
B. They can travel long distances
When was the first telegraph message sent?
A. 1844 B. 1861 C. 1920
A. 1844
What type of wave does a telegraph machine make?
A. Gamma B. X-ray C. Radio
C. Radio
Why do vowels have the shortest codes in Morse code?
A. They are used most often B. Shortcodes sound like vowels C. They are used most often
C. They are used most often
How long has Morse code existed?
A. 122 years B. 144 years C. 95 years
B. 144 years