11/16/2023 0 Comments Newton units joule![]() Why does it happen? A ship dips to a larger depth in freshwater as compared to marine water. Hence, we don’t feel the atmospheric pressure. Their pressure balances the pressure due to the atmosphere. The cavities in our body are filled with air, and arteries and veins are filled with blood. This is the pressure that we carry on our heads. The air pressure at the sea level is about 101 × 10 3 Pa. How much pressure do we carry on our heads? Why don’t we feel it? Also, the pressure increases as the depth of the liquid increases. What is understood from this? At any one level, the liquid pressure is the same. The jet from the lowest hole falls farthest from the bottle.Īlso, jets coming out from the two holes at the same level fall at the same distance from the bottle. The water jet emerging from the hole at the top will fall closest to the bottle. A shown in the figure, water jets will be seen emerging and projecting out. Fill water in the bottle up to full height. Pierce it with a thick needle (or with a hot nail) at the points 1, 2, 3 as shown in the Fig. What is observed? The pressure of water acts on the side of the bottle as well. ![]() Warm up one end of the glass tube and gently push it into the bottle at about balloon inflates. Take a 10 cm long piece of a glass tube on which a rubber balloon can be fitted. Hence, the pressure decreases and the tyres do not burst. Load carrying heavy vehicles have large number of wheels so that the load (weight, force) is distributed over large surface area of the wheels in contact with the road. The greater the surface area, the less is the pressure produced. The pressure produced by a given force depends on the area of the surface on which the force acts. Why do the load carrying heavy vehicles have large number of wheels? Will it sink or come to the surface of water? ![]() Answer the following questions in brief.Ī plastic cube is released in water. The air pressure on our body is equal to the atmospheric pressure.įor a given object, the buoyant force in liquids of different ………… is ………….įor a given object, the buoyant force in liquids of different density is the same.ģ. The air pressure on our body is equal to the …………. Maharashtra State Board Class 8 Science Solutions Chapter 3 Force and PressureĬlass 8 Science Chapter 3 Force and Pressure Textbook Questions and Answers ![]() Balbharti Maharashtra State Board Class 8 Science Solutions Chapter 3 Force and Pressure Notes, Textbook Exercise Important Questions and Answers. ![]()
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