21.
Bell invented the audiometer to measure what?
A
Heart Rate
B
Blood Pressure
C
Hearing Ability
D
Light Intensity
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Bell invented the audiometer to measure what?
Heart Rate
Blood Pressure
Hearing Ability
Light Intensity
Bell believed that which type of communication would replace the telephone?
Telegraph
Wireless Communication
Written Letters
None of the Above
Where is the Bell Homestead National Historic Site located?
Edinburgh, Scotland
Boston, USA
Brantford, Canada
Toronto, Canada
Which award did Bell receive in 1880 for his invention?
Nobel Prize
Albert Medal
Volta Prize
Edison Medal
Bell's early interest in sound was sparked by his work in what?
Music Therapy
Speech Therapy
Vocal Training
Linguistic Research
Bell was the first to experiment with which communication method?
Radio Waves
Optical Communication
Wireless Telegraphy
Sound Recording
Which U.S. president praised Bell's invention of the telephone?
Ulysses S. Grant
Rutherford B. Hayes
William McKinley
Theodore Roosevelt
What was the name of Bell's experimental aircraft?
The Flyer
Silver Dart
Aerodrome
Air Glide
Where was Alexander Graham Bell born?
Scotland
England
Canada
United States
Bell was a strong advocate for which scientific principle?
Evolution
Eugenics
Relativity
Electromagnetism
In which year did Alexander Graham Bell die?
1920
1922
1925
1930
Bell's mother influenced his interest in which area?
Music
Medicine
Acoustics
Engineering
What was Bell's first spoken message over the telephone?
"Hello, are you there?"
"Mr. Watson, come here, I want to see you."
"Testing, 1, 2, 3"
"Can you hear me now?"
Bell's telephone was demonstrated at which event in 1876?
Paris Exhibition
Philadelphia Centennial Exposition
Chicago World's Fair
London Science Fair
Which device did Bell invent to help locate bullets in the body?
X-ray Machine
Metal Detector
Stethoscope
Electrotherapy Device
What profession did Bell originally pursue?
Scientist
Teacher
Doctor
Engineer
Bell was inspired by which earlier inventor's work?
Thomas Edison
Samuel Morse
Elisha Gray
Hermann von Helmholtz
What was Bell's invention, the photophone, used for?
Sound Transmission through Air
Sound Transmission through Light
Video Transmission
Electricity Generation
Bell co-founded which major telecommunications company?
AT&T
Verizon
Bell Canada
Western Union
When was Alexander Graham Bell born?
March 3, 1845
March 3, 1847
March 3, 1849
March 3, 1850