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Chapter 19

Liquids. Chapter 19. Liquids exert pressure on the walls of their container. Pressure = force area. Pressure due to liquid = weight density x depth. Water pressure depends on depth, not volume:.

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Chapter 19

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  1. Liquids Chapter 19

  2. Liquids exert pressure on the walls of their container. Pressure = force area

  3. Pressure due to liquid = weight density x depth

  4. Water pressure depends on depth, not volume: “At any point within a liquid, the forces that produce pressure are exerted equally in all directions” - Hewitt:

  5. Buoyancy Buoyancy is the apparent loss of weight of objects when submerged in a liquid. Buoyant force is the upward force exerted on a submerged object that is opposite in direction to gravity.

  6. Displacement: the volume of liquid displaced by a submerged object is equal to the volume of the object. A completely submerged object always displaces a volume of liquid equal to its own volume.

  7. Archimedes Principle “An immersed object is buoyed up by a force equal to the weight of of the fluid that it displaces”

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