Chapter08b

# Chapter08b - Air Pressure and Winds II RECAP...

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Air Pressure and Winds II

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RECAP Ideal gas law : how the pressure, the temperature and the density of an ideal   gas relay to each other.  C T P × × = ρ Pressure  and pressure  measurements Constant height charts: isobars Constant pressure charts:  contour lines Note wind direction in NH L ow P  -> Cyclones  H igh P  -> Anticyclones
Isobaric chart Constant pressure, P=500 mb, then plot  heights: contour lines Pressures on surface maps <-> Heights  on isobaric charts Low <-> Low High <-> High Pressure <-> Temperature Low <-> Low High <-> High Note wind direction here Different from surface winds Along the contour lines,  no crossing

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Newton’s Laws of Motion Newton’s First Law : an object will  stay at rest , or maintain its motion at a constant  velocity and in a straight line    as long as no force is exerted on the object , or all forces cancel each other Says who?    An observer at rest G F G F F drag total + =
Newton’s Second Law The force (F) experienced by an object is equal to its mass (m) times the

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Chapter08b - Air Pressure and Winds II RECAP...

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