Unit Seven Atmosphere - Air Fronts

Question 1

What are the four types of fronts?

Answer 1

1. Warm Front
2. Cold Front
3. Stationary Front
4. Occluded Front

Question 2

What is a front?

Answer 2

A front is the boundary in which two different air masses (warm and cold) collide and “fight”. This creates a bunch of weather changes to the atmosphere.

Question 3

What is a cold front?

Answer 3

Cold air mass overpowers the warm air mass.

Question 4

What is a warm front?

Answer 4

A warm front is when warm air mass overpowers the cold air mass.

Question 5

What causes a warm front?

Answer 5

Warm air rises over the cold air mass

Question 6

What causes a cold front?

Answer 6

Cold air mass pushes and scoops the warm air mass higher in the atmosphere.

Question 7

How does a warm front cause precipitation and how long does it last? (5)

Answer 7

1. Warm air rises into the atmosphere
2. Multiple types of clouds form along the front
3. Cirrus clouds form high in the atmosphere (Indicates precipitation)
4. Stratus Cloud (Storm Cloud) form low in atmosphere
5. Storm lasts for a few days until front passes

(Note: Clouds become lower and darker)

Question 8

How does a cold front cause precipitation and how long does it last? (5)

Answer 8

1. Cold air mass forces the warm air up into the atmosphere
2. It cools and condenses into a tall storm cloud
3. Forms intense storm with heavy rain and snow
4. Only lasts a few hours
5. After, temp. drops suddenly

Question 9

What is a stationary front?

Answer 9

Air masses do not move

Question 10

What type of slope does a cold front have?

Answer 10

Steep

Question 11

What type of slope does a warm front have?

Answer 11

Gentle

Question 12

What happens to the weather if the stationary front stays the same for a short time and what occurs if it stays the same for a long time.

Answer 12

Short time - Small weather changes.

Long time - Warm front takes over with larger weather changes.