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प्रश्न
List the different gadgets and instruments mentioned in the passage. Find more information about them (at least 3), using the internet.
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उत्तर
- Gadgets and Instruments:
Fan, air conditioners, sewing machines, power tools, cars, trains, aeroplane engines, induction motors, telescopes, Bavarian glass, microscopes, electrical generators, and light bulbs. Now you add to the list of gadgets and instruments. You can add your own too. - Microscope:
It is an instrument used to see objects that are too small to be seen by the naked eye. Anton Van Leeuwenhoek (1632 - 1723), a Dutch scientist, who in the late 17th century became the first man to make and use a real microscope. All microscopes come with a lens that can magnify 40 times the normal size. - Electrical generator:
It was invented by Michael Faraday in 1831. It is a device that converts mechanical energy into electrical energy. Sources of mechanical energy include steam, turbines, gas turbines, water turbines, etc. It works on the principle of electromagnetic induction. - Fan:
A fan is a machine used to create flow within a fluid, typically a gas such as air. The fan consists of a rotating arrangement of blades which act on the fluid. The fan was invented by Schuyler Skaats Wheeler in 1882.
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संबंधित प्रश्न
Write what is implied in the following sentence.
But few know his inspirational life story, which is all about courage and fighting against the odds.
(What does it tell you about Faraday’s life?)
Find out more about the following scientist with the help of the internet.
Michael Faraday
Find out more about the following scientist with the help of the internet.
Humphry Davy
Find out more about the following scientist with the help of the internet.
Thomas Edison
Find out more about the following scientist with the help of the internet.
James Maxwell
- What would you like to learn about in your Science period?
- Have you ever tried to do an experiment on your own? If yes, tell me about it. If not, tell me why you’ve never tried.
- What would you like to learn about in your English classes?
Think of as many examples of the following as you can within five minutes and write them in the appropriate column.
| Type of machine | Examples |
| Simple machines that are operated by hand |
|
| Machines that run on electricity | |
| Electronic devices |
Before you read further, guess what the passage is about.
What were the odds against Faraday in his childhood?
Why do you think Faraday’s friend gave him a free ticket to Davy’s programme?
Guess the meaning of mentor.
How did Faraday respond to that treatment?
What happens when an electric current is applied to a wire?
An induction motor is a commonly used electrical machine. What examples of its use are given here?
Give one example to show that Faraday was a good pupil.
Give one example to show that Davy was not a good mentor.
Faraday kept a souvenir of his failure as a source of inspiration.
Write the idea behind an electrical generator.
Why were Faraday’s drawings not accepted?
Does it mean they were wrong?
Try out the experiment of the iron filings and the magnet.
epitomises: is a perfect example of.
Find the following matter in the passage and copy the missing word.
When he was twelve, ______ school ______.
Find the following matter in the passage and copy the missing word.
One day he came across a book on ______.
Find the following matter in the passage and copy the missing word.
He went on to prove that ______ filings;
Now complete the following sentence using your own word.
When he was twelve, ______.
Now complete the following sentence using your own word.
One day he came across a book on ______.
Now complete the following sentence using your own word.
People started telling ______ that ______.
Now complete the following sentence using your own words.
He handed him ______ which ______.
Now complete the following sentence using your own word.
He went on to prove that ______.
Now complete the following sentence using your own word.
It was ______ who ______.
