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WorksheetsRadio
Total questions: 20
Worksheet time: 10mins
What does the "AM" in AM radio represent?
American Mode
Atmospheric Music
Amplitude Modulation
Arc Manipulation
When was the first regular AM radio broadcast?(Hint: think sometime between the Wright stuff and the Titanic disaster.)
1903
1909
1954
1912
What is the AM broadcast frequency range?
50 or 60 Hz, depending on the country
88-108 MHz
535-1700 KHz
550-1650 Hz
US AM radio station call signs begin with one of two letters. Which of the below are the correct letters?
N & W
C & O
B & O
W & K
Why do well over half the AM radio stations go off the air or reduce their signal power at night?
save electricity
equipment maintenance
avoid interference with distant stations
operate with a smaller staff
The person who selects and plays music for a radio station is called a DJ or "deejay." What does that term actually stand for?
disc jockey
dirty jobber
disk juggler
dance judge
When your great-grandparents listened to the radio news about the Hindenburg disaster or the Pearl Harbor attack, what component was NOT inside their AM set?
resistor
coil
capacitor
transistor
Old time radios had at LEAST one - and probably more - clear glass tubes filled with "stuff." In the US, these tubes are called "electron tubes" or "vacuum tubes." What do the British and New Zealanders call them?
wave guides
glass thingos
valves
flux capacitors
From about 1953 to 1963, all American-made AM radios had small triangles on the frequency dial at 640 and 1240 Khz. What purpose did these marks serve?
manufacturer's trademarks
technician's calibration marks
popular station locations
civil defense
In the movie "A Christmas Story," Ralphie was a faithful listener of what radio serial adventure?
Red Ryder
Howdy Doody
Sky King
Little Orphan Annie
What were the call letters of the first commercial radio station?
WNBC
WOR
KDKA
KQV
Who invented the FM band?
Edwin Howard Armstrong
Moe Howard
Howard Stern
Robert Sarnoff
The term 'broadcasting' comes from which industry?
shipping
agriculture
railroad
steel
How long is an AM wave?
as long as a breadbox
as long as your fist
as long as a football field
as long as an automobile
How far does an FM radio wave travel
to the next block
line of sight (horizon)
to the ionosphere
until the ocean
What type of radiation are radio waves considered to be?
Electromagnetic radiation
gamma rays
Short wave radiation
microwaves
What topic was discussed on the first commercial radio broadcast?
The election results for 1920
The Hindenburg Disaster
The invaders from Mars
The Stock Market Crash of 1929
At the turn of the 21st century, the term "radio" was dominant. At the turn of the 20th century, however, there were many different descriptions given to the signaling and audio communication using electromagnetic radiation systems. Which was NOT one of these early names?
aerography
mobile telegraphy
wireless
ether waves
What invention really invigorated the development of audio (that is, voice and other sound) radio transmission in the early 20th century?
transistors
vacuum-tube transmitters
batteries
alternating current
Using Guglielmo Marconi's longwave signals, many passenger liners and other ships on the high seas adopted radio, or wireless telegraphy. SOS eventually became the universal distress signal in Morse code; what was used by (British) Marconi Wireless operators before that?
CQD
BLUE
HELP
MayDay
