Advertisements
Advertisements
Question
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 |
Advertisements
Solution
| Type of machine | Examples |
| Simple machines that are operated by hand | Screwdriver, pincers, auger chisel, drill machine, spanner, etc. |
| Machines that run on electricity | electric motor, fan, air conditioner, hair dryer, geyser, mixer, oven, etc. |
| Electronic devices | Mobile phones, tablets, laptops, computers, speakers, etc. |
APPEARS IN
RELATED QUESTIONS
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?)
Write what is implied in the following sentence.
People started telling Davy that of all his discoveries, the best was Faraday himself.
(What does it suggest about Davy’s work?)
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?
Write as many uses of the following as you can. Form groups of four. Compare your lists. Make a long list by putting together the lists of all members.
- A cloth bag
- a wicker basket
- a glass bottle or jar
- a steel bowl
- a thick string or rope
Choose any one machine or device and prepare a short note about it. It should include
- The structure of the device
- How it works (functions)
- A labelled diagram
- One or two lines about when and how it evolved.
Before you read further, guess what the passage is about.
What were the odds against Faraday in his childhood?
What was the subject of Davy’s lecture?
What actions and thoughts of Faraday show that he was inspired by Davy?
Guess the meaning of mentor.
Why did Davy choose Faraday as his secretary?
Was Davy fair in his treatment of Faraday?
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 Davy was not a good mentor.
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.
One day he came across a book on ______.
Find the following matter in the passage and copy the missing word.
It was Maxwell who ______ equations ______.
Now complete the following sentence using your own word.
He decided that ______.
Now complete the following sentence using your own words.
He handed him ______ which ______.
