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Archimedes’ Principle, Class 9 Science

1. There will be total 20 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. An object weighing 5 N in air, weighs 4.5 N a liquid. The buoyant force experienced by the object is :
 
 
 
 

Question 1 of 20

2. The same body is immersed in two liquids A and B in succession. The extent to which the body sinks in liquid B is less then in liquid A. What are the conclusions that could be derived from such an observation
 
 
 
 

Question 2 of 20

3. A sample of milk diluted with water has a density of 1040 kgm-3 . If pure milk has a density of 1080 kgm-3. The percentage of water by volume in milk is:
 
 
 
 

Question 3 of 20

4. A student lowers a body in a liquid filled in a container. He finds that there is a maximum apparent loss in weight of the body when
 
 
 
 

Question 4 of 20

5. The density of copper is 9 g/cm3. Then the volume of 90 g copper is
 
 
 
 

Question 5 of 20

6. The sea water is denser than fresh water due to
 
 
 
 

Question 6 of 20

7. While measuring the volume displaced by a solid inside a liquid in a measuring jar, which of the following methods should be adopted?
download
 
 
 
 

Question 7 of 20

8. Observe the figure below :
download (1)The volume of stone immersed in the liquid is :
 
 
 
 

Question 8 of 20

9. Instrument used for measuring the density or relative density of liquids is known as
 
 
 
 

Question 9 of 20

10. A packet of 400 g and volume 200 cm3 is put in a water tank. The relative density of packet is
 
 
 
 

Question 10 of 20

11. An object of weight 500 N is floating in a liquid. The magnitude of buoyant force acting on it is
 
 
 
 

Question 11 of 20

12. If relative density is 11.3, the density of the substance in SI units is
 
 
 
 

Question 12 of 20

13. If the density of the object placed in a liquid is equal to the density of the liquid, the object will:
 
 
 
 

Question 13 of 20

14. The mass of water displaced by a solid of mass 400 g and volume 150 cm3 is
 
 
 
 

Question 14 of 20

15. Three objects A, B, and C having density 1.12 g cm-3, 0.92 g cm-3 and 2.02 g cm-3 respectively, are placed in a water tank. Which object will sink in water tank?
 
 
 
 

Question 15 of 20

16. When a solid body is fully immersed in a liquid, the volume of the displaced liquid is:
 
 
 
 

Question 16 of 20

17. If we want to determine the volume of a solid by immersing it in water, the solid should be
 
 
 
 

Question 17 of 20

18. A plastic mug full of water appears lighter inside water due to
 
 
 
 

Question 18 of 20

19. Apparent loss in weight is caused due to
 
 
 
 

Question 19 of 20

20. The density of tap water is lees then that of sea water. If an object is immersed completely in both one, its loss in weight will be
 
 
 
 

Question 20 of 20

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