Understanding Air Masses and Fronts

What is an air mass?

• A large body of air with uniform temperature and humidity

• A small pocket of air with varying temperature

• A type of cloud formation

• A weather pattern that lasts for a few hours

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Which of the following is a type of air mass?

• Tropical maritime

• Polar desert

• Equatorial tundra

• Subtropical arctic

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What characteristic is common to all fronts?

• They are boundaries between different air masses

• They are areas of high pressure

• They are regions of clear skies

• They are zones of constant temperature

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How does a cold front form?

• When a cold air mass moves under a warm air mass

• When a warm air mass moves over a cold air mass

• When two warm air masses collide

• When two cold air masses meet

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What is a characteristic of a warm front?

• Gradual increase in temperature

• Sudden drop in temperature

• Clear skies

• High wind speeds

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What effect does a stationary front have on weather?

• Prolonged periods of rain

• Quick thunderstorms

• Clear and sunny weather

• Rapid temperature changes

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Define an occluded front.

• A front where a cold front overtakes a warm front

• A front where two warm fronts meet

• A front where a warm front overtakes a cold front

• A front where two cold fronts collide

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Which air mass is typically associated with dry and warm conditions?

• Continental tropical

• Maritime polar

• Continental polar

• Maritime tropical

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What happens to the weather when a cold front passes?

• Temperature drops and thunderstorms may occur

• Temperature rises and skies clear

• Temperature remains constant and winds calm

• Temperature rises and humidity decreases

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Which of the following best describes a warm front?

• A warm air mass slides over a cold air mass

• A cold air mass pushes under a warm air mass

• Two cold air masses meet

• Two warm air masses collide

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DOK Level 1: Recall