PPT-Class #5: Air pressure and winds

Chapter 8 1 Class 5 Tuesday July 13 2010 Air pressure and winds Chapter 8 2 Class 5 Tuesday July 13 2010 Atmospheric Pressure What causes air pressure to change in the horizontal Why does the air pressure change at the surface. Chapter 2.2 Guided Notes. What is Weather?. Weather is the condition of Earth’s atmosphere at a particular time and place.. What is Wind. ?. Wind is air moving across the surface of the Earth. It can move horizontally or parallel to the ground.. Defined as the force exerted on you by the weight of tiny air . particles . in . the atmosphere per unit area.. Earth’s atmospheric pressure = 14.7 pounds per square inch OR 1 kilogram per square centimeter. What is wind?. How does the Coriolis Effect play a role in air movement?. What are the doldrums?. Air Movement. Objective: . Understanding how air moves through the atmosphere.. Air Movement. Wind. Moves from areas of . The Atmosphere& Weather (Part 2). CHAPTER. Air Pressure & Wind. What is air pressure?. Air (Atmospheric) Pressure: the _______ exerted by the _____________________ above it. Force. Weight of the Air. i. What causes wind? . Caused by a difference in air pressure due to. unequal heating of the atmosphere.. Winds are created by. ….. • . Heating the air, decreases pressure (warm. air rises creating a low pressure). What is air pressure?. Air Pressure: the force exerted by the weight of the air above it. Why does the weight of the air not crush you?. The pressure is exerted in all directions, not just down. (Ruler and newspaper demonstration). What air pressure systems are anticyclones associated with?. . What . air pressure systems are cyclones associated with?. Do Now. What air pressure systems are anticyclones associated with? . Highs. Unit 5: Sixth Grade. http://www.youtube.com/watch?v=uBqohRu2RRk. https://games.ciconline.org/windward/content/sailing.html#record. Windward Online Sailing around the world game. Whooosh. !!!!!. When you open the valve on a bicycle tube, the air rushes out.. The movement of air in a horizontal direction. What is wind?. The uneven heating of the Earth causes differences in air pressure.. What causes wind?. The Sun’s energy is more concentrated at the Equator and spread out more over the poles.. i. Winds are created by. ….. • . Heating the air, decreases pressure (warm. air rises creating a low pressure). • Cool air rushes into replace the warm air. (cooler dense air, produces high pressure). Will air circulate Clockwise or Counterclockwise around each of these pressure centers?. H. L. Cyclonic and anticyclonic winds in the Northern Hemisphere. Cyclones and anticyclones . Cyclone. A center of . Warm-up What is weather? REMINDER – QUIZ CH.11 WEDNESDAY Chapter 12 Meteorology Causes of Weather Meteorology – the study of atmospheric phenomena such as fog, clouds, snow, rain, and lighting Weather Wind is the movement . of air caused by an uneven heating of the Earth’s . surface.. What HEATS EARTH’S SURFACE?. Heat from the sun heats the surface of the Earth.. This heat arrives to Earth in the form of radiation.. Global . Winds. - A . current. is a flow of air or water in a certain direction.. Global . Winds. Winds move from areas of . high. pressure to . low. pressure.. You might expect them to move straight from the poles (high pressure) to the equator (low pressure)but….