32. Define density.
33. The density of cork is ------------ than the density of waqter.
34. The upthrust of water on the cork is ------------------ than the weight of the cork.
35. The density of an iron nail is ------------- than the density of water.
36. The upthrust of water on the iron nail is ------------- than the weight of the nail.
37. Why does an iron nail sink in water?
38. Objects of density less than that of water ----------------- the liquid.
39. Objects of density greater than that of water -------------- the liquid.
40. (Stone string experiment) The elongation produced in the string or the spring balance is due to the --------------------------------.
41. When the stone is immersed in water, some force acts on the stone in an ------------------ direction.
42. What is known as the force of buoyancy?
43. Define Archimedes’ Principle.
44. Mention the fields / applications where Archimedes’ Principle is used.
45. What is the unit of density?
46. The density of a given substance under specified conditions -------------------------.
47. Density is -------------------- for different substances.
48. What is the density of gold?
49. What is the density of water?
50. The density of a given sample of a substance can help us to determine its -------------------
51. .Relative density = ------------------------------- .
52. It is convenient to express density of a substance in comparison with that of -----------------.
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