Exam 8: Air Pressure and Winds

The Coriolis force is the result of

The contour lines drawn on a 500 mb chart are lines of constant

If the earth's gravitational force were to increase,atmospheric pressure at the ground would

On a 500 millibar chart,____ are drawn to represent horizontal changes in altitude which correspond to horizontal changes in pressure.

Suppose you deflate a bicycle tire by depressing the air valve.Why does air rush out of the tire? After the air stops rushing out of the tire,is the tire empty? Explain your answer.

Which statement below is not correct concerning the Coriolis force?

The unit of pressure most commonly found on a surface weather map is

Warm air aloft is associated with constant pressure surfaces that are found at ____ altitude than normal and ____ than normal atmospheric pressure aloft.

If two air parcels at sea level have the same size but different temperatures,the colder parcel of air will have

On an isobaric surface,

To correctly monitor horizontal changes in air pressure,the most important correction for a mercury barometer is the correction for

The ____ is an apparent force created by the earth's rotation.

Is a force needed to keep a satellite orbiting at constant speed around the earth?

The pressure announced on last night's television weather broadcast was 29.92.Explain how this was measured and give the units.Would this be considered an unusually large or low pressure value?

If,at your home in the Northern Hemisphere,the surface wind is blowing from the northwest,then the region of lowest pressure will be to the ____ of your home.

Explain briefly why upper-level winds at middle latitudes in the Northern Hemisphere blow from west to east.In what direction do upper level winds at middle latitudes in the Southern Hemisphere blow?

A surface low pressure center is generally associated with ____ on an upper level isobaric chart.

Which of the following forces does not have a direct effect on horizontal wind motions?

Draw a simple Northern Hemisphere upper-air pressure pattern consisting of several straight,uniformly-spaced contour lines running from left to right across your paper.Assume that lower heights are found at the top of your chart.Use arrows to indicate the direction that the wind would blow and the direction of the pressure gradient force and Coriolis force acting on a moving parcel of air.

A station at an altitude of 900 m (about 3,000 feet)above sea level measures an air pressure of 930 mb.Under normal conditions,which of the values below do you think would be the most realistic sea level pressure for this station?