Weather Fronts, High Pressure Systems, and Low Pressure Systems

Name

What happens when air sits over a certain area for a long time?

• It becomes a front.
• It becomes a high pressure system.
• It becomes an air mass.
• It becomes a low pressure system.

What kind of weather do high pressure systems usually bring?

• Clouds and rain.
• Clear skies and calm weather.
• Strong winds and storms.
• Heavy snow and ice.

Where are weather fronts often found?

• Near high pressure systems.
• Near the equator.
• Near the poles.
• Near low pressure systems.

What is the main difference between a cold front and a warm front?

• A cold front brings warm air, while a warm front brings cold air.
• A cold front brings stormy weather, while a warm front brings calm weather.
• A cold front is when cold air pushes into warm air, while a warm front is when warm air pushes into cold air.
• A cold front is a wall of air that separates two high pressure systems, while a warm front is a wall of air that separates two low pressure systems.

What happens to the air in a low pressure system?

• It sinks and becomes denser.
• It rises and becomes less dense.
• It stays the same, but becomes warmer.
• It stays the same, but becomes colder.

What is the Coriolis effect?

• A force that makes winds curve as they move.
• A force that makes air masses move faster.
• A force that makes air masses move slower.
• A force that makes air masses change direction.

What is the main characteristic of an air mass?

• It has a lot of wind.
• It has a lot of rain.
• It has a similar temperature and moisture level throughout.
• It has a lot of clouds.

What happens when two air masses meet and neither one is strong enough to push the other away?

• A cold front forms.
• A warm front forms.
• A stationary front forms.
• A high pressure system forms.

If a large area of land is very hot and humid, what kind of air mass will likely form over it?

• A cold and dry air mass.
• A warm and dry air mass.
• A warm and humid air mass.
• A cold and humid air mass.