L7

Basics of Fluid Pressure

100

Question: What is fluid pressure?

Answer: Fluid pressure is the force that liquids apply to the walls of their container.
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200

Question: What is the difference between fluids and solids?

Answer: Fluids, like liquids and gases, flow easily, while solids maintain their shape.
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Pressure and Depth

100

Question: As you go deeper underwater, what happens to the pressure?

Answer: The pressure increases as you go deeper.
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200

Question: How much more pressure is there 10 meters underwater compared to the surface?

Answer: The pressure is double at 10 meters underwater.
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Fluid Pressure in Everyday Life

100

Question: Why does water feel like it’s pushing down on you when you take a bath?

Answer: That’s fluid pressure at work.
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200

Question: How does drinking from a straw relate to fluid pressure?

Answer: The air pressure around us is greater than the pressure inside the straw, pushing the liquid up.
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Pressure in Liquids and Gases

100

Question: What’s the key difference between liquids and gases in terms of pressure?

Answer: Liquids are incompressible, so they exert pressure more strongly than gases.
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200

Question: Why does air exert less pressure than liquids like water?

Answer: Air is a gas and can spread out, making its pressure weaker compared to liquids.
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Fun Facts

100

Question: How does the water pressure at the Grand Canyon's river compare to sea level?

Answer: The water pressure is more than 50 times what it is at sea level.
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200

Question: What keeps soda in a can carbonated?

Answer: The pressure inside the can keeps the bubbles in the soda until it is opened.
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Pressure and the Environment

100

Question: What do water towers in cities do to ensure water reaches higher floors?

Answer: Water towers create enough pressure for water to travel to homes on higher floors.
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200

Question: How much stronger is the pressure at the bottom of the Mariana Trench compared to the ocean surface?

Answer: The pressure is over 1,000 times stronger than at the surface.
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Pressure Applications

100

Question: What happens if there’s not enough water pressure in pipes?

Answer: Water won’t come out of the faucet properly.
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200

Question: Why do deep-sea divers wear special suits?

Answer: To protect them from the intense pressure at great depths.
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Pressure Effects

100

Question: What is one everyday experience where you feel fluid pressure?

Answer: Drinking through a straw or taking a bath.
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200

Question: How does the pressure of water change with depth?

Answer: The deeper you go, the more pressure you feel from the water.
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