📚 Topic Summary
Air pressure is the force exerted by the weight of air above a given point. It's affected by temperature and altitude. Warm air is less dense and creates lower pressure, while cool air is denser and creates higher pressure. Wind is simply the movement of air from areas of high pressure to areas of low pressure. The greater the difference in pressure, the stronger the wind. This pressure difference is what we call the pressure gradient force. Other factors like the Coriolis effect (due to Earth's rotation) also influence wind direction.
💨 Part A: Vocabulary
Match the terms with their definitions:
| Terms |
Definitions |
| 1. Air Pressure |
A. The movement of air from high to low pressure. |
| 2. Wind |
B. The force exerted by the weight of air. |
| 3. High Pressure System |
C. A swirling center of high air pressure. |
| 4. Low Pressure System |
D. A swirling center of low air pressure. |
| 5. Pressure Gradient Force |
E. The force that causes air to move from high to low pressure. |
✍️ Part B: Fill in the Blanks
Wind is created by differences in __________. Air moves from areas of __________ pressure to areas of __________ pressure. The greater the difference, the __________ the wind. The __________ effect also influences wind direction due to the Earth's rotation.
🤔 Part C: Critical Thinking
Explain how uneven heating of the Earth's surface leads to the formation of global wind patterns.