Quiz 7.2: Understanding the Nature of Fronts

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To successfully complete this quiz, you should be able to do the following: explain the basic characteristics of fronts; differentiate between a warm front and a cold front in terms of basic temperature, pressure, and humidity; and recognize how they differ regarding frontal movement influences on air masses and surface characteristics.

This activity contains 4 questions.

When does precipitation occur on warm fronts?

After the ground-level position of the moving frontBefore the ground-level position of the moving frontJust over the ground-level position of the frontTwo to three days prior to the ground-level position of the front

Why do cold fronts possess a steeper slope than warm fronts?

Molecules of cold air can naturally be piled higher because they possess a higher angle of repose.Cold air has a higher density, which allows it to hug the ground and thus slow the advance of the lower portion of the front.Cold air has a lower density and a higher instability, thus allowing it to be lifted more abruptly.The cold front is deflected by the unstable air of the warm front over which it is advancing, causing it to be pushed upward into a steep wall.

On the diagram, which of the following represents a warm air mass location? Select all that apply.

ABCD

On the diagram, which of the following represents a cold air mass location? Select all that apply.

ABCD

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