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All about the USA 2, Thomas Edison and the Practical Electric Light (Text)
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1. Where and when was Thomas Edison born, and how many children were in his family?
New York City on 11 February 1847; he was the oldest of seven children.
Milan, Ohio, on 11 February 1847; he was the youngest of seven children.
Milan, Ohio, on 11 February 1837; he was the only child.
Boston, Massachusetts, on 11 February 1847; he was the youngest of five children.
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2. Why did Edison's mother take over his education, and what did he like to do as a child?
Because his family moved frequently; he enjoyed playing sports with his friends.
Because he was ill for many years; he enjoyed studying foreign languages.
Because he attended school only briefly; he enjoyed reading science books and doing experiments.
Because he disliked his teachers; he spent his time drawing and painting.
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3. What job did Edison have as a young man, and how did it help him in his career?
He worked as a shopkeeper, which taught him about running a business.
He worked as a farmer, which taught him about growing different crops.
He worked as a teacher, which taught him about educating students.
He worked as a telegraph operator, which taught him about electricity and communication.
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4. What was special about the laboratory Edison opened in Menlo Park in 1876?
It was one of the first laboratories where teams of specialists worked together on inventions.
It was the largest laboratory ever built and had no other equivalent at that time.
It was financed entirely by the government and produced military weapons.
It only conducted experiments on plants and agricultural products.
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5. Did Edison invent the very first electric light bulb? Explain why or why not.
Yes — he was the very first person in the world to create an electric lamp.
No — but he invented the very first electric motor instead of a light bulb.
No — other inventors like Joseph Swan had already built early lamps, but Edison's was safer, longer-lasting, and more practical.
Yes — he invented it alone without any help from his team.
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6. What material did Edison and his team successfully use for the filament in 1879?
A carbonized cotton filament.
A metal copper wire.
A thin piece of bamboo wood.
A glass rod coated with silver.
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7. Why was it necessary for Edison to develop generators, wires, and a distribution system?
Because the government ordered him to produce military equipment.
Because other inventors refused to share their electrical designs.
Because he wanted to sell machines to foreign countries.
Because a light bulb was only useful if homes and streets had electricity.
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8. How many patents did Edison receive during his lifetime, and what other inventions did he work on?
He received 1,093 US patents and worked on the phonograph, motion pictures, and improved telegraphs.
He received 500 patents and worked only on the phonograph.
He received 2,000 patents and worked only on the light bulb.
He received 1,093 US patents but never improved the telegraph system.
