Exam 8: Air Pressure and Winds

Which of the following gives the direction of the vertical pressure gradient force?

Which of the following gives the name for the force that causes a stationary parcel of air to begin to move horizontally?

Which of the following forces can influence wind direction?

Suppose a parcel of air has a given temperature, pressure, and density. Which of the following will happen to the air pressure inside the parcel if its size remains the same while its temperature increases?

Which of the following describes why the net force acting on air that is blowing parallel to straight contours at constant speed is zero?

​ -If an air parcel is completely at rest, which of the following forces can make the parcel begin to move?

On an upper-level chart, which of the following is generally associated with a centre of surface low pressure?

Briefly outline the important aspects of all the forces that move air in the atmosphere.

Suppose a station at sea level measures an air pressure of 1030 hPa. Under standard conditions, which of the following values is the most likely air pressure at an elevation of 600 metres above this station?

Which of the following describes the relation on an upper-level chart between air temperature and pressure?

Which of the following describes pressure change in relation to direction?

Sketch the wind flow patterns around surface high- and low-pressure centres in the northern and southern hemispheres.

Which of the following describes cyclonic flow regardless of the hemisphere?

Which of the following terms refers to the wind flow pattern when the wind blows in a more or less west-to-east direction?

​ -The wind in the northern hemisphere will eventually blow toward which of the following directions?

On an upper-level chart, which of the following is indicated by a ridge?

In the northern hemisphere, suppose you observe the upper-level winds blowing from the south. In which direction from you is the trough of low pressure?

What does Newton's first law state?

Although the scale on an altimeter indicates altitude, an altimeter actually measures which of the following?

Consider the situation in which a wind blows at constant speed parallel to straight line isobars, and with the pressure gradient force (PGF) in balance with the Coriolis force. Which of the following is the name for this kind of wind?