Class 8 Science — Chapter 6: Pressure, Winds, Storms, and Cyclones

What you'll learn

• ▸Definition and Unit of Pressure
• ▸Effect of Area on Pressure
• ▸Pressure Exerted by Liquids
• ▸Liquid Pressure and Depth
• ▸Introduction to Atmospheric Pressure
• ▸Demonstrating Properties of Pressure

Chapter Summary

--- PAGE 1 --- Pressure, Winds, Storms, and Cyclones 6 0877CH06 Probe and ponder * Why are winds stronger on some days than on others? * Why are water tanks usually placed at a height? * Can air pressure really crush us? * What causes storms and cyclones? If the Earth stopped rotating, would cyclones still form? * Share your questions __________________________________ __________________________________ ? --- PAGE 2 --- Chapter 6 – Pressure, Winds, Storms, and Cyclones 81 You must have observed fallen leaves on the ground swirling in the air or being swept away, and trees swaying or even bending when a strong wind blows. Have you ever wondered why fallen leaves rise in the air or trees sway or bend? Does the wind exert force on fallen leaves to make them rise or on trees to bend? Recall other similar effects of the force exerted by wind like slamming of doors or rattling of windows, or fluttering of clothes? How does the force exerted by wind make this happen?…

Practice Questions from this Chapter

Tap "Get Solution" on any question to ask our AI tutor.

1. Explain liquid pressure simply. Get Solution →
2. Demonstrate pressure's effect with a balloon. Get Solution →
3. Describe how wind causes storms. Get Solution →
4. What is the correct formula for calculating pressure? Get Solution →
5. What is the SI unit of pressure, which is also called a pascal (Pa)? Get Solution →
6. What is the envelope of air that surrounds the Earth called? Get Solution →
7. According to the chapter, what happens to the pressure exerted by a liquid as the height of its column increases? Get Solution →
8. The pressure exerted by the air around us is known by what name? Get Solution →

Did you know?

• 💡 The air pressing on your body equals the weight of a small car.
• 💡 Deep-sea fish can survive under pressures thousands of times stronger than surface pressure.
• 💡 Early diving bells used trapped air to keep water out, allowing underwater work.
• 💡 A hurricane's wind pressure can be strong enough to lift roofs from buildings.
• 💡 Astronauts need special suits because outer space has almost no air pressure.

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