#3 Air Masses & Fronts Quiz

A cold air mass moves in and overtakes a warm front in the presence of a low-pressure system. Which weather is least likely to occur with these conditions?

• clear skies

• hailstorms

• cloudy skies

• thunderstorms

Which situation would most likely cause high barometric pressure to suddenly drop?

• a warm front moving into the area

• a cold front moving into the area

• the clearing of cloudy skies

• the end of a winter storm

Why do hurricanes form over oceans?

• Ocean water is warm and heats the air above it, causing the air to rise.

• Ocean water is cool and cools the air above it, causing the air to rise.

• The salt in ocean water reacts with the air, changing the air pressure.

• The density of ocean water changes, causing the air pressure to rise.

A slow-moving low-pressure system is moving into an area, replacing a high-pressure system. Which type of weather is expected as the new system arrives?

• clear skies

• storms

• cloudy

• sunny

Why do hurricanes only form during certain months of the year?

• Convection currents are needed for hurricane formation, but these currents only occur during the summer.

• Strong wind speeds are needed for hurricane formation, but winds are too weak during the summer.

• Water temperatures are too cool during the winter, so hurricanes can only form in the summer.

• Air temperatures are too warm during the summer, so hurricanes can only form in the winter.

Which factor is generally associated with severe weather?

• high temperatures

• cold temperatures

• high pressure

• low pressure

Why do hurricanes and tornadoes have spiraling winds?

• Ocean currents drag the air above them in circles.

• Low-pressure air pushes higher-pressure air sideways.

• The rotation of Earth causes the air to turn as it moves.

• The gravity of Earth's moon pulls air currents with the tides.

Which factor most directly relates to the development of thunderstorms?

• cirrus cloud formation

• uneven cloud coverage

• uneven air temperature

• upward movement of warm air

What type of front usually forms when a warm air mass is caught between two cooler air masses?

• cold

• occluded

• stationary

• warm

Which of the following is appropriate for the weather diagram?

• "Cold Front"

• "Warm Front"

• "Occluded Front"

• "Low-Pressure System"