Oceanic Convection Currents

Convection currents and Hurricane formation

Feb. 3, 2021

Today you will be going over ocean currents, convection currents and how Hurricanes are formed.

You need to take notes on the convection and Hurricanes.

The next two slides are weather front review questions.

Multiple Choice

Based on the weather map, what will most likely happen to the weather in the North western area of Texas

• Clear skies and warmer

• Dry air and sunny

• Thunderstorms and lower temperatures

• Calm breezes

Multiple Choice

A cold front is approaching Minneapolis. What will happen to the air temperature?

• stay the same

• increase

• decrease

On the next slide you will be shown a video about convection currents.

Pay attention on how it moves. The circulation pattern for hot and cold waters.

Multiple Choice

Warm air is __________ dense than cold air and rises creating convection currents.

• more

• less

Multiple Choice

Warm air rises and the cool air sinks demonstrates this type of heat transfer.

• conduction

• convection

• radiation

• Insolation

Ocean Currents

Movement of water from Cold to warm places on Earth.

Okay that is too simple.

Multiple Choice

____________ air rises because it is ____________dense.

• Cool, Less
• Warm, Less
• Cold, More
• Warm, More

Multiple Choice

In convection, COOL air

• Rises
• Sinks

Multiple Choice

The Gulf Stream is a current that brings warm ocean water from the south to the north. What type of heat transfer is this?

• conduction

• convection

• radiation

• Insolation

Multiple Choice

Look at the picture. Which of the following statements best explains why the city of Hopedale is cooler than the city of Stornoway?

• Hopedale has a longer duration of isolation each day.

• Hopedale is influenced by a cold ocean current.

• Stornoway is farther from the equator

• Stornoway is on a different continent

Multiple Choice

Which situation would reduce the strength of a hurricane?

• the formation of a low-pressure area

• the formation of a high-pressure area

• warm water moving into the area

• cool water moving into the area

Multiple Choice

View the colored diagram. Which area of the map would produce the most hurricanes and violent storms?

• the gray areas - over warm land

• the gray areas - over cool land

• near the equator

• near the poles

Multiple Choice

What makes hurricanes go away?

• They move out to sea.

• They begin to spin in a spiral motion.

• hey get moisture from warm ocean waters.

• They move over land or cold water and lose energy.

Multiple Choice

Which of the following is a true statement?

• hurricane is a triangle-shaped storm.

• Thunderstorms last longer than hurricanes.

• It's common to see hurricanes in January and February.

• Hurricanes form in warm weather.

Multiple Choice

What is the “fuel” that “feeds” a hurricane

• cold air

• dry air

• warm and moist air

• warm and dry air