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Kinetic Theory

This video explains Archimedes' principle and buoyancy, Bernoulli's principle and its applications, and Pascal's principle. It also explores the relationship between pressure, temperature, and volume of gases and liquids. Learn about the ability of fluids to exert upward force (buoyancy), the factors affecting an object's ability to float or sink, and how these principles are used in various contexts.

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Kinetic Theory

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Presentation Transcript

  1. Kinetic Theory Explains how particles in matter behave. 16-2

  2. Properties of Fluids Section 2

  3. Explain Archimedes’ principle and buoyancy. • Explain Bernoulli’s principle and identify how we use it. • Explain Pascal’s principle. • CLE 3202.1.8 Investigate the relationship among the pressure, temperature, and volume of gases and liquids. Objectives

  4. Buoyancy – ability of a fluid (liquid or gas) to exert an upward force on an object immersed in it

  5. https://www.youtube.com/watch?v=g6aErhwFXsg

  6. An object in a fluid will float if its weight is equal to the buoyant force acting on it from the fluid. • An object in a fluid will sink if its weight is more than the buoyant force acting on it from the fluid.

  7. Archimedes’ principle – buoyant force on an object is equal to the weight of the fluid displaced by the object. • An object will float if its density is less than the density of the fluid it is placed in.

  8. Archimedes's Principle

  9. Cont.

  10. Pascal’s principle – pressure applied to a fluid is transmitted throughout the fluid (toothpaste)

  11. Pressure is force exerted per unit area. • Hydraulic machines use this principle to lift heavy loads.

  12. Pascal’s Principle http://www.edumedia-sciences.com/en/a260-hydraulic-lift

  13. Bernoulli’s principle – as the velocity of a fluid increases, the pressure exerted by the fluid decreases 1. Airplanes use this principle to fly.

  14. Bernoulli’s Principle

  15. Bernoulli’s Principle in Flight

  16. Viscosity – a liquid’s resistance to flow • Molecular structure determines a fluid’s viscosity • Increased temperature will lower viscosity.

  17. Why do some objects sink and other float in water? Discussion Question

  18. An object’s density and its weight determine whether it will float. Objects with density less than the density of water will float. Objects that weigh less than the buoyant force will float. Answer

  19. Explain Archimedes’ principle and buoyancy. • Explain Bernoulli’s principle and identify how we use it. • Explain Pascal’s principle. • CLE 3202.1.8 Investigate the relationship among the pressure, temperature, and volume of gases and liquids. Objectives

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