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Fluids Book Back Questions & Answers, Exercises, Solutions, Tests, Quizzes, Videos and Podcasts for Class 9 | Unit 3 | Physics | Science | Samacheer Kalvi – English Medium

9th Standard Samacheer Kalvi Science New Book Back Questions & Answers: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/fluids/exercises

Podcasts: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/fluids/videos

Tests & Quizzes: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/fluids/tests

Flash Cards: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/fluids/flashcards

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00:00 Introduction
00:10 Choose the correct answer
01:54 Fill in the blanks
02:32 True or false
03:38 Match the following
04:09 Assertion and reason

Questions answered in this video –

1. The size of an air bubble rising up in water

2. Clouds float in atmosphere because of their low

3. In a pressure cooker, the food is cooked faster because

4. An empty plastic bottle closed with an airtight stopper is pushed down into a bucket filled with water. As the bottle is pushed down, there is an increasing force on the bottom. This is because,

5. The weight of the body immersed in a liquid appears to be________ than its actual weight

6. The instrument used to measure atmospheric pressure is _________.

7. The magnitude of buoyant force acting on an object immersed in a liquid depends on________ of the liquid.

8. A drinking straw works on the existence of________

9. The weight of fluid displaced determines the buoyant force on an object.

10. The shape of an object helps to determine whether the object will float or not.

11. The foundations of high-rise buildings are kept wide so that they may exert more pressure on the ground

12. Archimedes principle can also be applied to gases.

13. Hydraulic press is used in the extraction of oil from oil seeds

14. Density

15. 1 gwt

16. Pascals law

17. Pressure exerted by a fluid

18. Lactometer

19. (A): To float, body must displace liquid whose weight is equal to the actual weight… (R): The body will experience no net downward force in that case.

20. (A): Pascals law is the working principle of a hydraulic lift.. (R): Pressure is thrust per unit area

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