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WorksheetsHow Hertz Produced Radiowaves (Quiz)
Total questions: 12
Worksheet time: 6mins
Who was first person to transmit and receive controlled radio waves?
Heinrich Hertz
James Clerk Maxwell
Isaac Newton
Albert Einstein
Spirals produced electric sparks by a process called
Induction Coil
Magnetic Induction
Riess Spirals
All of the above
What did Hertz use to generate sparks?
Induction Coil
Magnetic Induction
Riess Spirals
All of the above
Which of the following is an example of Alternating Current?
Phone batteries
Car batteries
Low voltage
Electrical Outlets
How does an induction coil power a car’s spark plugs?
It transforms low voltage DC electricity to high voltage AC
It transforms high voltage AC electricity to low voltage DC
It transforms low voltage AC electricity to high voltage DC
All of the above
In Hertz' experiment, what will happen if there is no voltage difference between CA & CB?
no spark
a spark
electricity
no electricity
What is produced whenever electric charges are accelerated?
Resonance
Amplitude
Frequency
Wavelength
The unit of frequency is
Hertz
Ampere
Joule
Kilojoule
100 mHz is equal to a resonant frequency of
100 million per second
1 million per second
1 million per hour
100 million per hour
In Hertz’s circuit, the vibrations produced were not sound but vibrations of (a)
electrical charges
sound
waves
light
As predicted by Maxwell, oscillating electric charges produced (a)
radio waves
light
sparks
electricity
Who was granted a patent for wireless communication?
Heinrich Hertz
Isaac Newton
Guglielmo Marconi
Albert Einstein
