Find by means of vector diagram the resultant of two forces of 7 m and 3 Newton acting perpendicular to each other
Answers
Explanation:
I. Answer these questions in a few words or a couple of sentences each.
1. How old are Margie and Tommy?
2. What did Margie write in her diary?
3. Had Margie ever seen a book before?
4. What things about the book did she find strange?
5. What do you think a telebook is?
6. Where was Margie’s school? Did she have any classmates?
7. What subjects did Margie and Tommy learn?
Ans: 1. Margie is eleven and Tommy is thirteen years old.
2. In her diary on the page headed 17 May, 2157 Margie wrote, “Today Tommy found a real book!”.
3. No, Margie had never seen a book before but she had heard about it from her grandfather.
4. The very idea of printed book with still words instead of moving the way they did on a screen was strange for her.She just found it odd that for centuries the words on a page always remained the same without any change. Besides, the idea that someone would write a book about schools was itself strange for Margie.
5. A book that can be displayed on a television screen is called telebook.
6. Margie’s school was just a room called schoolroom in her home itself, right next to her bedroom. No, she did not have any classmates and even in the name of teacher,a mechanical teacher flashed on the screen.
7. Margie and Tommy learned three subjects i.e. geography, history and arithmetic.
II. Answer the following with reference to the story.
1. “I wouldn’t throw it away.”
(i) Who says these words?
(ii) What does ‘it’ refer to?
(iii) What is it being compared with by the speaker?
Ans: (i) Tommy says these words to Margie.
(ii) 'It' refers to the television screen, on which over a million books were available.
(iii) The television screen is being compared to real printed books of earlier times by Tommy.He finds printed books a waste to be thrown away after reading whereas his telebooks are really useful and needn't to be thrown away.
2. “Sure they had a teacher, but it wasn’t a regular teacher. It was a man.”
(i) Who does ‘they’ refer to?
(ii) What does ‘regular’ mean here?
(iii) What is it contrasted with?
Ans: (i) 'They' refers to the students of earlier times i.e.centuries before who went to old styled schools.
(ii) Here, 'regular' means the mechanical teachers that Tommy and Margie had.
(iii) The mechanical teacher is contrasted with the school teacher of earlier times, who happens to be a 'man'.
III. Answer each of these questions in a short paragraph (about 30 words).
1. What kind of teachers did Margie and Tommy have?
Ans: Margie and Tommy had mechanical teachers. They were large and black and ugly and flashed on large black screens on which all the lessons were shown and questions were asked. These mechanical teachers had a slot in which the students had to put their homework . Studentshad to write their answers in a punch code and the mechanical teacher calculated the marks immediately.
2. Why did Margie’s mother send for the County Inspector?
Ans: Margie had been given many tests in geography by the mechanical teacher, but there was no improvement in her performance. It only kept on worsening therefore Margie’s mother sent for the County Inspector to find out the reason behind that.
3. What did he do?
Ans: The County Inspector was a round little man with a red face,he smiled at Margie and gave an apple to her and started working on the mechanical teacher. He took it apart and then checked it. Margie wished that the Inspector would not know how to put the mechanical teacher together again, but he managed to reassemble it. He slowed down the geography sector of the teacher because it was geared a little too quick for an average ten