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Copyright: 1996 - 2024 Webmaster:
Kirt Blattenberger,
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
AirplanesAndRockets.com
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Electronic Analogy Quiz August 1960 Popular
Electronics
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August 1960 Popular Electronics
Table
of Contents
Wax nostalgic about and learn from the history of early electronics. See articles
from
Popular Electronics,
published October 1954 - April 1985. All copyrights are hereby acknowledged.
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This electronics analogy
quiz is a little easier than many of the others published in Popular Electronics
magazine
because all of the electrical and mechanical objects depicted here are very familiar.
The concepts might seem trivial to those of us who have been immersed in the science
for decades, but I for one can remember when first hearing these analogies how helpful
they were. Not only that, but I also recall during physics and mechanics courses
in college being amazed at the similarity of equations shared by electrical and
mechanical processes. Wikipedia has a huge page describing many of the most
familiar
mechanical-electrical analogies.
Electronic Analogy Quiz
By Robert P. Balin
Analogies - or comparisons - between electrical and mechanical phenomena are
widely used to explain many electronic principles. See if you can match the lettered
objects to the numbered symbols in the boxes below. The correct match in each case,
and a complete explanation of the principles involved, will be found at the bottom
of the page.
Quizzes from vintage electronics magazines such as Popular
Electronics, Electronics-World, QST, and Radio News were published
over the years - some really simple and others not so simple. Robert P. Balin
created most of the quizzes for Popular Electronics. This is a listing
of all I have posted thus far.
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Elementary
Radio Quiz - December 1947 Radio-Craft
- Hi-Fi
Quiz - October 1955 Radio & Television News
- Electronics Physics
Quiz - March 1974 Popular Electronics
- A Baffling Quiz
- January 1968 Popular Electronics
- Electronics IQ
Quiz - May 1967 Popular Electronics
- Plug and Jack
Quiz - December 1967 Popular Electronics
- Electronic
Switching Quiz - October 1967 Popular Electronics
- Electronic
Angle Quiz - September 1967 Popular Electronics
- International
Electronics Quiz - July 1967 Popular Electronics
- FM Radio
Quiz - April 1950 Radio & Television News
- Bridge Circuit
Quiz -December 1966 Popular Electronics
- Diode Function
Quiz - August 1965 Popular Electronics
- Diagram Quiz,
August 1966 Popular Electronics
- Quist Quiz - November
1953 QST
- TV Trouble Quiz,
July 1966 Popular Electronics
- Electronics History Quiz,
December 1965 Popular Electronics
- Scope-Trace Quiz,
March 1965 Popular Electronics
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Electronic
Circuit Analogy Quiz, April 1973
-
Test Your Knowledge of Semiconductors, August 1972 Popular Electronics
- Ganged Switching
Quiz, April 1972 Popular Electronics
- Lamp Brightness
Quiz, January 1969 Popular Electronics
- Lissajous Pattern Quiz, September 1963 Popular Electronics
- Electronic
Quizoo, October 1962 Popular Electronics
- Electronic Photo Album Quiz, March 1963 Popular Electronics
- Electronic Alphabet Quiz, May 1963 Popular Electronics
- Quiz: Resistive?
Inductive? or Capacitive?, October 1960 Popular Electronics
- Vector-Circuit Matching Quiz, June 1970 Popular Electronics
- Inductance
Quiz, September 1961 Popular Electronics
- RC Circuit Quiz,
June 1963 Popular Electronics
- Diode Quiz, July
1961 Popular Electronics
- Electronic Curves Quiz, February 1963 Popular Electronics
- Electronic Numbers Quiz, December 1962 Popular Electronics
- Energy Conversion Quiz, April 1963 Popular Electronics
- Coil Function
Quiz, June 1962 Popular Electronics
-
Co-Inventors Quiz - January 1965 Electronics World
-
"-Tron" Teasers Quiz - October 1963 Electronics World
- Polarity Quiz
- March 1968 Popular Electronics
-
Television
I.Q. Quiz - October 1948 Radio & Television News
- Amplifier Quiz
Part I - February 1964 Popular Electronics
- Semiconductor
Quiz - February 1967 Popular Electronics
- Unknown
Frequency Quiz - September 1965 Popular Electronics
- Electronics
Metals Quiz - October 1964 Popular Electronics
- Electronics
Measurement Quiz - August 1967 Popular Electronics
- Meter-Reading
Quiz, June 1966 Popular Electronics
- Electronic
Geometry Quiz, January 1965 Popular Electronics
- Electronic
Factor Quiz, November 1966 Popular Electronics
- Electronics
Math Quiz, November 1965 Popular Electronics
- Series Circuit
Quiz, May 1966 Popular Electronics
- Electrochemistry
Quiz, March 1966 Popular Electronics
- Biz
Quiz: Test Your Sales Ability - April 1947 Radio News
- Electronic
Analogy Quiz, November 1961 Popular Electronics
- Electronic
Coupling Quiz, August 1973 Popular Electronics
- Electronics Analogy Quiz, August 1960 Popular Electronics
- Audio Quiz, April
1955 Popular Electronics
- Electronic Unit
Quiz, May 1962 Popular Electronics
- Capacitor
Circuit Quiz, June 1968 Popular Electronics
- Quiz on AC Circuit Theory, December 1970 Popular Electronics
- Magnetic Phenomena Quiz, February 1962 Popular Electronics
- Electronics Geography Quiz, April 1970 Popular Electronics
- Electronic
Menu Quiz, August 1963 Popular Electronics
- Electronic Noise Quiz, August 1962 Popular Electronics
- Electronic Current Quiz, October 1963 Popular Electronics
- Electronic Inventors Quiz, November 1963 Popular Electronics
- Resistor Function
Quiz, January 1962 Popular Electronics
- Electronic Measurement Quiz, January 1963 Popular Electronics
- Vacuum Tube Quiz,
February 1961 Popular Electronics
- Kool-Keeping Kwiz, June
1970 Popular Electronics
- Find the Brightest
Bulb Quiz, April 1960 Popular Electronics
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Where Do the Scientists Belong? - Feb 19, 1949 Saturday Evening
Post
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Analogy Quiz Answers
I. G. Because of its magnetic field, an inductor has the ability to resist any
change in the amount or direction of the current flowing through it - we call this
property "electrical inertia." A heavy grinding wheel, because of its mass, has
mechanical inertia and tends to resist any change in its speed or direction of rotation.
2. D. A rectifier in an electrical circuit permits electron flow in only one
direction. A ratchet wheel and check pawl likewise permit rotation in only one direction.
3. C. A capacitor stores electrical energy in its dielectric when it is charged,
and the energy is recovered when you provide a discharge path for it. The coil spring
in a jack-in-the-box stores mechanical energy in its stressed turns when the spring
is compressed; this energy is recovered when you open the box.
4. H. A fuse element can carry little more than the normal current for its circuit;
when an overload occurs, it is the first thing to burn in two and thereby open the
circuit. The fuse may be compared, then, to the weakest link in a chain.
5. B. A resonant circuit will oscillate at a frequency determined by the inductance
and capacitance present. A tuning fork oscillates as well, but at a frequency determined
by its mechanical construction.
6. A. A transformer takes electrical energy supplied to its primary winding as
a large current at low voltage and provides us with virtually the same amount of
energy delivered as a small current at high voltage from its secondary winding.
A gear train receives mechanical energy at high speed and low torque and converts
it for use by a device requiring the same amount of power supplied at low speed
and high torque.
7. E. An open switch stops electron flow in the same manner as a closed faucet
stops the flow of water.
8. F. A resistor limits the current in a circuit, but converts some of the electrical
energy into heat while doing so. The brake shoe on the wagon wheel limits the speed
of its rotation, and changes some of the mechanical energy into heat.
Posted October 29, 2019(original 11/18/2013)
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