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Материал туралы қысқаша түсінік

Pressure in liquids and gases. Pascal law

Калиева Айгуль Каиргельдиновна

Автор материалды ақылы түрде жариялады. Сатылымнан түскен қаражат авторға автоматты түрде аударылады. Толығырақ

05 Ақпан 2019

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Pressure in liquids and gases. Pascal law 7th grade № 3 Talapker Secondary School Kaliyeva Aigul Kairgeldinovna Physics Teacher Паскаль Блез 1623 -1662

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Pressure in liquids and gases. Pascal law 7th grade № 3 Talapker Secondary School Kaliyeva Aigul Kairgeldinovna Physics Teacher Паскаль Блез 1623 -1662

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Pressure is a value equal to the ratio of the force acting perpendicular to the surface to the area of this surface. Pressure calculation formula Where p – pressure F - applied pressure force S - surface area / otherwise body support area /

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Pressure is a value equal to the ratio of the force acting perpendicular to the surface to the area of this surface. Pressure calculation formula Where p – pressure F - applied pressure force S - surface area / otherwise body support area /

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Pressure in liquids and gases of Pascal's Law Why does the ball increase its volume? • Conclusion: • The pressure of the gas on the walls of the vessel and placed in the gas the body is caused by the impact of gas molecules.

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Pressure in liquids and gases of Pascal's Law Why does the ball increase its volume? • Conclusion: • The pressure of the gas on the walls of the vessel and placed in the gas the body is caused by the impact of gas molecules.

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What does gas pressure depend on? Conclusion: Gas temperature From the volume occupied by the gas.

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What does gas pressure depend on? Conclusion: Gas temperature From the volume occupied by the gas.

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How do gases and liquids impart pressure? Pascal's law Liquids and gases transfer pressure in all directions equally.

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How do gases and liquids impart pressure? Pascal's law Liquids and gases transfer pressure in all directions equally.

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Pressure units Pa (Pascal) 1 Pa is the pressure that the 1H force produces, acting on a surface of 1 m2, perpendicular to this surface • Multiple and long units: • 1 kPa = 1000 Pa 1Pa = 0.001 kPa • 1 MPa = 1000000 Pa 1 Pa = 0.000001 MPa • 1 hPa = 100 Pa 1 Pa = 0.01 hPaTanometr Manometr

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Pressure units Pa (Pascal) 1 Pa is the pressure that the 1H force produces, acting on a surface of 1 m2, perpendicular to this surface • Multiple and long units: • 1 kPa = 1000 Pa 1Pa = 0.001 kPa • 1 MPa = 1000000 Pa 1 Pa = 0.000001 MPa • 1 hPa = 100 Pa 1 Pa = 0.01 hPaTanometr Manometr

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Fluid pressure calculationSh V V m mg F S F p      gh p  

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Fluid pressure calculationSh V V m mg F S F p      gh p  

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Exercises • The DT-75M tracked tractor with a weight of 6610 kg has a reference area of both tracks of 1.4 m2. What pressure does the tractor apply to the soil? • Given • m = 6610 kg • S= 1,4 m 2 • р = ? • Answer: P=46 270Pa

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Exercises • The DT-75M tracked tractor with a weight of 6610 kg has a reference area of both tracks of 1.4 m2. What pressure does the tractor apply to the soil? • Given • m = 6610 kg • S= 1,4 m 2 • р = ? • Answer: P=46 270Pa

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1. If you fully understand the topic then pick up a green apple 2. If you’ve half understood the topic of a lesson then pick up a yellow apple 3. If you do not understand the topic of the lesson then pick up a red apple

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1. If you fully understand the topic then pick up a green apple 2. If you’ve half understood the topic of a lesson then pick up a yellow apple 3. If you do not understand the topic of the lesson then pick up a red apple

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