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- 1. Multiple Choice
Italian ____________________ gets credit for building the first radio
Alexander Graham Bell
Guglielmo Marconi
Karl Benz
- 2. Multiple Choice
Marconi wanted to send signals without wires. His work led to the invention of __________________________
the steam engine
the light bulb
the wireless telegraph or the Raido
- 3. Multiple Choice
First Marconi used electrical signals to ring a bell ______________________________
on the roof
on the other side of a room.
in the basement
- 4. Multiple Choice
Then he sent electrical signals from ____________________________
one house to another
one floor of his house to another
one street to another
- 5. Multiple Choice
His radio messages were soon traveling across the __________________________
river
street
Atlantic Ocean
- 6. Multiple Choice
___________________________________ invented a TV system based on a camera tube.
Thomas Edison
Vladimir Zworykin
Alexander Graham Bell
- 7. Multiple Choice
Early TV sets had small screens and so many other parts, they needed big boxes to hold them.
true
false
- 8. Multiple Choice
Images on early TVs didn't use to be in black and white.
true
false
- 9. Multiple Choice
TVs haven't changed a lot since the first models!
true
false
- 10. Multiple Choice
LCD and LED technology make today’s TVs sleek and thin.
true
false
- 11. Multiple Choice
LCD stands for liquid crystal display.
true
false
- Answer choicesTagsAnswer choicesTags