Question Pressure

1.  Sharp knife cuts more easily than a blunt one. Explain with reason.
2. What is the effect on pressure when the area is increased by keeping the magnitude of the force constant ?
3. A man exerts more pressure under his foot when he stands with one foot than when he stands on two foot why ?
4. Prove that, p= F/A.
5. If a man has mass 60 kilogram and the area of his one foot is 150 cm. What is pressure exerted by him on the ground when he stepped with one foot?
6. Anupama has a mass of 30 kg and the surface area that her sandal occupies is 150 cm2. Then what will be the magnitude of pressure if she stands on one foot?
7. What is meant by pressure? Write in which SI unit it is measured.
8. Give any two examples, application of pressure in our daily life?
9. Write two factors that affect the pressure.
10. What is meant by one Pascal pressure?
11. What is meant by pressure?
12. What is the SI unit of pressure?
13. What are the two aspect of or daily life where there is appliaction of pressure?
14. What are the two factors that affect pressure?
15. What is meant by one pascal pressure?
16. What happens to pressure when surface area is increased but the force is kept constant?
17. A man exerts more pressure under his foot when he stands with one foot than when he stands on two foot, why?
18. It is easier to cut with sharp knifes than the blunt ones. Why?
19. If we stand two ladies, one wearing pointed heel shoe and another with flat shoe, in a line. Explain which one will exert more pressure on the ground.
20. What is lactometer?
21. The base of a rectangular vessel measures 10 cm x 18 cm. Water is poured in it to the depth of 4 cm. What are the pressure and force on the base?
22. A girl weight 30 kg and surface area of the heel of her shoe is 100 cm2. Find the pressure exerted on the ground if she stands on her single foot(Take g = 10m/s²).
23. Sharp knife cuts more easily than a blunt one. Explain with reason.
24. What is the effect on pressure when the area is increased by keeping the magnitude of the force constant ?
25. A man exerts more pressure under his foot when he stands with one foot than when he stands on two foot why ?
26. Prove that, p= F/A.
27. If a man has mass 60 kilogram and the area of his one foot is 150 cm. What is pressure exerted by him on the ground when he stepped with one foot?
28. Anupama has a mass of 30 kg and the surface area that her sandal occupies is 150 cm². Then what will be the magnitude of pressure if she stands on one foot?
29. What is meant by pressure? Write in which SI unit it is measured.
30. Give any two examples, application of pressure in our daily life?
31. Write two factors that affect the pressure.
32. What is meant by one Pascal pressure?
33. What is meant by pressure?
34. What is the SI unit of pressure?
35. What are the two aspect of or daily life where there is application of pressure?
36. What are the two factors that affect pressure?
37. What happens to pressure when surface area is increased but the force is kept constant?
38. A man exerts more pressure under his foot when he stands with one foot than when he stands on two foot, why?
39. It is easier to cut with sharp knifes than the blunt ones. Why?
40. If we stand two ladies, one wearing pointed heel shoe and another with flat shoe, in a line. Explain which one will exert more pressure on the ground.
41. What is lactometer?
42. The base of a rectangular vessel measures 10 cm x 18 cm. Water is poured in it to the depth of 4 cm. What are the pressure and force on the base?
43. A girl weight 30 kg and surface area of the heel of her shoe is 100 cm². Find the pressure exerted on the ground if she stands on her single foot(Take g = 10m/s²).
44. Sharp knife cuts more easily than a blunt one. Explain with reason.
45. What is the effect on pressure when the area is increased by keeping the magnitude of the force constant ?
46. A man exerts more pressure under his foot when he stands with one foot than when he stands on two foot why ?
47. Prove that, p= F/A.
48. If a man has mass 60 kilogram and the area of his one foot is 150 cm. What is pressure exerted by him on the ground when he stepped with one foot?
49. Anupama has a mass of 30 kg and the surface area that her sandal occupies is 150 cm². Then what will be the magnitude of pressure if she stands on one foot?
50. What is meant by pressure? Write in which SI unit it is measured.
51. Give any two examples, application of pressure in our daily life?
52. Write two factors that affect the pressure.
53. What is meant by one Pascal pressure?
54. What is meant by pressure?
55. What is the SI unit of pressure?
56. What are the two aspect of or daily life where there is appliaction of pressure?
57. What are the two factors that affect pressure?
58. What is meant by one pascal pressure?
59. What happens to pressure when surface area is increased but the force is kept constant?
60. A man exerts more pressure under his foot when he stands with one foot than when he stands on two foot, why?
61. It is easier to cut with sharp knifes than the blunt ones. Why?
62. If we stand two ladies, one wearing pointed heel shoe and another with flat shoe, in a line. Explain which one will exert more pressure on the ground.
63. What is lactometer?
64. The base of a rectangular vessel measures 10 cm x 18 cm. Water is poured in it to the depth of 4 cm. What are the pressure and force on the base?
65. 
    A girl weight 30 kg and surface area of the heel of her shoe is 100 cm2. Find the pressure exerted on the ground if she stands on her single foot(Take g = 10m/s²).
66. Study the diagram and answer the following questions,
    
1. What is the weight of stone in air?
2. How much upthrust is exerted by liquid on the stone?
3. Calculate mass of the object.
67. The weight of stone when immersed in water is 9N and weight of displaced water is 2N.  Answer the following questions:
    
    
    
1. What reading will the spring balance will show when the stone is taken out from water?
2. Name the principle verified by this experiment. Also state the principle.
68.  A solid object weight 34N in air and 10N in water . What is the upthrust and weight of the liquid displaced ?
69. State the law of floatation.