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Value Based Questions in Science for Class 9 Chapter 16 Floatation

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Value Based Questions in Science for Class 9 Chapter 16 Floatation

These Solutions are part of Value Based Questions in Science for Class 9. Here we have given Value Based Questions in Science for Class 9 Chapter 16 Floatation

VALUE BASED QUESTIONS

Question 1.
Anita and Suneeta were good friends. They had gone to a coastal side for walking. Anita was wearing flat surfaces chapal and Suneeta was wearing a high heel chapal. On the sandy surface, Suneeta was feeling uncomfortable while walking. Anita helped her to walk for some time on the sandy surface. Thereafter, both of them returned back. Anita asked Suneeta not to wear high heel chapal while walking on a sandy surface.
Answer the following questions based on the above paragraph.

  1. Why was Suneeta feeling uncomfortable while walking on the sandy surface ?
  2. Comment on the attitude of Anita.

Answer:

  1. The pressure exerted by Suneeta on the sandy surface was large as pressure = weight of Suneeta/area of heel of the chapal. Due to large pressure, her feet were sinking in sand. Therefore, she was feeling uncomfortable while walking.
  2. Anita is concerned about Suneeta. She was a good friend. Anita had high degree of general awareness.

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Question 2.
Amit is a student of class IX. His neighbour used to complain that he was not getting pure milk. But the man, who was supplying the milk said that the milk was pure. Amit knew how to test the purity of milk. He brought the lactometer and tested the milk. He told the man supplying milk not to cheat his neighbour.
Answer the following questions based on the above paragraph.

  1. On what principle, lactometer works ?
  2. What values are shown by Amit ?

Answer:

  1. Archimedes principle.
  2. Amit has high degree of general awareness. He is concerned about his neighbour. On the basis of his knowledge, he proved that the man supplying milk was wrong.

Question 3.
Some students were swimming in a swimming pool. Aayan, a student of class V was sitting sad near the swimming pool. Suneel came to Aayan and asked the reason of his sadness. Aayan told Suneel that he did not know how to swim. However, he also wanted to swim. Suneel asked Aayan to wear the life saving jacket. Then Suneel helped Aayan to swim.
Answer the following questions based on the above paragraph.

  1. What is the basic principle, on which life saving jacket works ?
  2. Comment on the attitude of Suneel.

Answer:

  1. When a person wears a life saving jacket and enters into water, the weight of water displaced by jacket is more than the weight of the person. Hence, the person can float in water easily.
  2. Suneel feels concerned for others. He could not see the sadness of Aayan. He is helpful. He used his knowledge to fulfill the desire of Aayan.

Question 4.
A milkman used to sell milk in the city and always carried lactometer with him. The customers trusted him and his business flourished.

  1. What is lactometer ?
  2. What is the principle of lactometer ?
  3. Carrying a lactometer by a milkman shows high values. List any two. (CBSE 2015)

Answer:

  1. Lactometer is a device used to test the purity of milk.
  2. Lactometer is based on Archimedes principle.
    1. Milkman is honest,
    2. He is a good business man.
    3. He is concerned with the health of his customers.

Hope given Value Based Questions in Science for Class 9 Chapter 16 Floatation are helpful to complete your science homework.

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