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PROJECT ARROW
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. . .Authoring/ Research/ Reporting/ and Other Work;
Using the Higher Levels of Reading, Math, Language Arts, Social Studies and Writing. |
| Charleston C.U.S.D. #1 Elementary
Schools, Mr. Howard Taylor, Teacher |
STUDYING RADIO HISTORY : TECHNOLOGY AND
PEOPLE
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In
this project you will learn about the Great Inventions concerning radio
and the people that made it work from the 19th Century to the 21st
Century
Answer these questions before you make
your own radio broadcasts.
Go to Radio
Transmission Activity (Odyssey--PBS) for answers.
| 1. Who was Guglielmo Marconi,
and what did he invent? |
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| 2. Who was Lee De Forest, and what did
he invent? |
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| 3. Who was Frank Conrad, and what did
he invent? |
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| 4. Who was Reginald A. Fessenden, and
what did he invent? |
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| 5. Before voices and music, what kind
of noises were emitted on the first wireless radios? |
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| 6. In 1901, Marconi accomplished a
"very" historical radio stepping stone. What was it, and why is
so important to the history of wireless communication? |
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| 7. In 1921, America's first radio
station went "on air." What was the call letters of the station,
and where was it located? What important news broadcast was
on the station? How did this first radio newscast
effect broadcasting in the future? |
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| 8. In the 1920's what replaced the
headsets (listening device) of the first radios? |
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| 9. Go to the Radio Transmission
Activity and answer these questions about technical aspects of wireless
radio WAVES: a. What is frequency? What happens when it is higher? When it is lower? b. What is amplitude? What happens when it is higher? When it is lower? c. What is the Carrier Wave Generator? What purpose does it serve in carrying the audio signal over the air? d. What is the Modulator? How does the modulator do to the carrier signal amplitude? e. What is the "transmitting antenna"? What does the antenna do with the radio signal? f. What is the "receiving antenna"? What does the receiving antenna do to allow the listerner to hear voice and/or music? What happens if the receiving antenna is too far away? g. What does the radio receiver "Amplifier" do to help here a weak signal? How does it help the signal? h. What does the receiver "demodulator" do? Why does the radio signal need to be cut in half? i. What does the radio receiver "filter" do in making the voice or music of the radio heard? What part of the signal is removed, and what part remains? j. A radio receiver has a "speaker." What role does the speaker serve in allowing the listener to hear voices or music on the radio? |
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| 10. GO TO THE RADIO "RADIO TRANSMISSION
ACTIVITY" AND GO THROUGH THE INTERACTIVE STORY OF THE "RADIO
WAVE." USE THE SLIDE TO SET THE WAVES AT VARIOUS
FREQUENCIES. |
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| 11. Who was Edwin H. Armstrong, and what did he
invent that was very important for modern radio? Go Here
for the answer. |
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| 12. Define these different types of
radio broadcasting formats: |
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| **ADVANCED RADIO
INFO & FUN Go to How Wireless Works for fun interactive explanations. Write in the answer box "10" new things you learned about wireless from the activities. |
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| **LEAVE THE PAST
AND LEARN ABOUT SATELLITE RADIO Go Here to get caught up on 21st Century radio systems. Write in the answer box "10" things you learned about XM satellite radio. |
| Return to
the Radio "Quest" Page with questions, etc. |
Return
to Project Arrow Activity Page |
Return
to the Radio History/Broadcast Page |
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Check Out:
Mr. Taylor's A-Lincoln Learning Collection "By the Light of the Fire" Learning Activity and Resource Pages http://www.alincolnlearning.us/
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