5. SUBJECTIVE TYPE QUESTIONS A. Give reasons for the following. 1. It is easier to cut an apple with a sharp knife than a blunt one. 2. Deep sea divers wear special suits. B. Answer the following questions in short 1. What is pressure? Give its SI unit. 2. A force of 2.5 N rotates a 0.5 m long spanner in a particular direction. Calculate the momento 3. The moment of force of 10 N about a fixed point O is 5 Nm. Show that the distance of point the line of action of the force is 0.5 m. 4. What is atmospheric pressure? 5. A person applies a force of 36 N on an area of 4 m? How much pressure is applied? force. which the force is applied. 7. Define moment of force and write its unit. Give some examples. 8. Why is a camel able to walk on sand even when it is carrying a heavy load? (HOTS) 9. Why mountaineers often suffer from nosebleed at high altitude? (HOTS) Answer the following question s in detail. 1. In liquids, pressure increases with the increase in depth. Explain giving examples. 2. Explain with the help of an experiment that a liquid exerts the same pressure in all directions given depth. C.
Answers
Answer:
the same number of you and your family are well and I am in my life
Explanation:
the than a blunt one. 2. Deep sea divers wear special suits. B. Answer the following questions in short 1. What is pressure? Give its SI unit. 2. A force of 2.5 N rotates a 0.5 m long spanner in a particular direction. Calculate the momento 3. The moment of force of 10 N about a fixed point O is 5 Nm. Show that the distance of point the line of action of the force is 0.5 m. 4. What is atmospheric pressure? 5. A person applies a force of 36 N on an area of 4 m? How much pressure is applied? force. which the force is applied. 7. Define moment of force and write its unit. Give some examples. 8. Why is a camel able to walk on sand even when it is carrying a heavy load? (HOTS) 9. Why mountaineers often suffer from nosebleed at high altitude? (HOTS) Answer the following question s in detail. 1. In liquids, pressure increases with the increase in depth. Explain giving examples. 2. Explain with the help of an experiment that a liquid exerts the same pressure in all directions given depth. C. number of you and your family are well and I am in my life
Give reasons for the following.
1. The pressure exerted by the sharp knife edge is more than that exerted by the blunt one because the area on which force is exerted with a sharp knife is very small. Thus, it is easier to cut with the former than with the latter.
2.Hence, the deep sea divers wear special suits which protect them from extreme pressure of water. These suits are called diving suits. These suits contain buoyancy compensators to combat the weight of their diving equipment and the pressure of water at great depths.
Answer the following questions in short
1. Pressure, in the physical sciences, the perpendicular force per unit area, or the stress at a point within a confined fluid.
4.Atmospheric pressure, also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa; 1,013.25 mbar), which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.
7.Moment of force (often just moment) is a measure of its tendency to cause a body to rotate about a specific point of axis. In this concept the moment arm, the distance from the ais of rotation, plays an important role. The S. I. unit for moment is the newton meter (Nm)