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FLOW

UNDERSTANDING MATTER & ENERGY FLUIDS

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UNDERSTANDING MATTER & ENERGY FLUIDS

2.7  use appropriate science and technology vocabulary in oral and written communication

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CURRICULUM

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UNDERSTANDING MATTER & ENERGY FLUIDS

2.7  use appropriate science and technology vocabulary in oral and written communication

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CURRICULUM

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UNDERSTANDING MATTER & ENERGY FLUIDS

3.6  explain in qualitative terms the relationship between pressure, volume, and temperature when a liquid (e.g., water) or a gas (e.g., air) is compressed or heated

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CURRICULUM

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IS IT A FLUID?

the particles of a fluid must be able to move freely past each other in order to flow

    • the particles liquids and gases are able to flow past each other, �so these are both fluids

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there are 3 PHASES OF MATTER

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CLOUDS

The particles of air and water that make up these clouds slide past each other and allow them to flow.

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KETCHUP

The particles of water and tomato in this ketchup slide past each other and flow into the cups.

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SOLIDS DON’T FLOW

Some solids, like this salt, appear to flow when ground into fine powders. When we looks closely, we see that each grain has a definite shape.

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RARE EXCEPTION

A glacier is a solid but it flows downhill very slowly, so it is one of the few solids that are also fluids.

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LAMINAR FLOW

TURBULENT FLOW

TYPES OF FLOW

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LAMINAR FLOW

  • it allows fluids in pipes to move quickly and with more energy
  • when designing cars, boats and planes, we try to reduce the amount of drag so that flow is as laminar as possible
    • this makes the machines more efficient

is a smooth �pattern of �flow

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LAMINAR FLOW

is a smooth �pattern of �flow

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TURBULENT FLOW

  • it occurs when the fluid flows around objects that disrupt the laminar flow pattern
  • it can create eddies, which are areas of slower moving fluid behind an obstacle

is an irregular, mixing pattern of flow

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TURBULENT FLOW

is an irregular, mixing pattern of flow

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  • Flow

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