Random A
Which is a modern form of communication?
a. signal fire b. telegraph c. cell phone d. cave paintings
c. cell phone
What is Morse code? a. a short letter b. a typed note c. dots and lines d. emojis and memes
c. dots and lines
What does S-O-S stand for? a. “Save Our Ship” b. “Save Our Souls” c. “Save Our Sailors” d. It has no meaning.
d. It has no meaning.
How long did it take for telegraph messages to be sent across the country? a. seconds b. days c. weeks d. months
a. seconds
Each advancement in technology makes communication _______.
a. Faster
b. Slower
C. Clearer
D. Harder
a. Faster
Why was the mail company called the Pony Express?
a. It used the Pony Trail.
b. Only boys could be hired.
c. Ponytails were part of the uniform.
d. The mail was delivered by a horseback rider.
d. The mail was delivered by a horseback rider.
Why was the telegraph so popular?
a. Everyone loves horses.
b. It was bad for the rich.
c. Trains were able to move faster.
d. Messages traveled instantaneously.
d. Messages traveled instantaneously.
What is the worldwide database called?
a. the internet
b. the global database
c. the science repository
d. the worldwide data store
d. the worldwide data store
When was the telegraph invented? a. after the Pony Express ended b. before the Pony Express started c. while the Pony Express was running d. at the same time as the Pony Express
c. while the Pony Express was running
Finish this pattern: dit-dah-dit-dit dit-dah-...
a. dit-dit b. dit-dah c. dah-dit d. dah-dah
a. dit-dit
What is one property of waves? a. They are easily distorted. b. They are hard to detect. c. They cannot be decoded. d. They can travel long distances.
d. They can travel long distances.
What type of wave does a telegraph machine make? a. gamma b. light c. radio d. X-ray
c. radio
The telegraph and telephone required wires to transmit information from place to place. Modern cell phones are able to communicate without wires. What is one benefit of this advancement in technology?
Freedom of movement
Flexibility in how and where devices are used
Less cutter
Quicker communication and response time
Why are radio waves a good way to transmit information over long distances?
a. They are very loud.
b. They do not degrade.
c. They cannot be intercepted.
d. They are powered by sunlight.
b. They do not degrade.
Fill in the blank: All phones and electricity stop working during a windstorm. ______would be a good way to communicate with a neighbor without going outside.
Light