Air pressurs

Here are ten one-word answer type questions based on the Air Pressure section from your uploaded PDF, along with answers and explanations:

1. Question: What is the pressure exerted by the weight of air called?

Answer: Air pressure

Explanation: Air pressure is the force exerted by the weight of air on the Earth’s surface .

2. Question: At what altitude is air pressure the highest?

Answer: Sea level

Explanation: Air pressure is highest at sea level and decreases as we move higher in the atmosphere .

3. Question: What happens to air pressure as altitude increases?

Answer: Decreases

Explanation: As we go higher into the atmosphere, the air pressure decreases rapidly .

4. Question: What kind of pressure is created when air gets heated and rises?

Answer: Low pressure

Explanation: Heated air becomes lighter and rises, creating a low-pressure area, which is often associated with cloudy skies and wet weather .

5. Question: What kind of pressure is associated with clear and sunny skies?

Answer: High pressure

Explanation: Cold air is heavy and sinks, creating a high-pressure area, which results in clear and sunny weather .

6. Question: In which direction does air always move?

Answer: High to low

Explanation: Air moves from high-pressure areas to low-pressure areas, which causes wind formation .

7. Question: What instrument is used to measure air pressure?

Answer: Barometer

Explanation: A barometer is an instrument used to measure atmospheric pressure, helping in weather forecasting .

8. Question: What is the term for the zone of very low pressure near the equator?

Answer: Doldrums

Explanation: The equatorial low-pressure belt, known as the doldrums, is a region where air rises due to intense heating .

9. Question: What happens to air pressure when temperature increases?

Answer: Decreases

Explanation: Higher temperatures cause air to expand and become lighter, reducing air pressure .

10. Question: Why don’t we feel the pressure exerted by the air around us?

Answer: Balanced

Explanation: The air exerts pressure on our bodies from all directions, and our body also exerts an equal counterpressure, making us unaware of it .

These questions are based on the Air Pressure section of your textbook. Let me know if you need any modifications!


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