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| What is the SI unit for pressure? |
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| Why doesn't ice float in air? |
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| How does atmospheric pressure change as you go from the top of a mountain to sea level? |
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| How do soap bubbles become round? |
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| What does NOT affect an airplane's lift? |
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| What ships are built with |
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| Takes the shape of a container |
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| Caused by weight of the atmosphere |
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| Upward force equal to the weight of fluid an object displaces. |
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| Force exerted on a given area |
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| Amount of matter in a given volume |
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| The faster the speed, the lower the pressure, according to |
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| The forward force from an airplane's engine is called |
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| Hydraulic devices lift ofjects using |
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| The density of a fluid affects the ___________ it exerts. |
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| The forward force of an airplane works against |
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| What happens when the muscle in your chest moves when you breathe out? |
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| The space in your chest becomes larger. |
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| What happens in the lungs when you exhale? |
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Definition
| Air moves from high pressure (in the lungs) to low pressure (outside). |
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