Revision Air Pressure and Winds

Which is TRUE

• When temperature increases, air pressure increases too

• When temperature increases, air pressure decreases

• When air is warm, it is less dense and pressure exerted becomes more

• When air is cool, it is more dense and therefore air pressure drops

Why is there wind?

• Because there is difference in pressure

• Because air moves

• Because there is difference in temperature

• All of the above

What does it mean by "land breeze"? Which is FALSE?

• Breeze is blowing from land to sea

• The land is cooler than the sea

• Breeze is blowing towards land from sea

• The sea has lower pressure

What is the Coriolis Effect?

(you may select more than one option if applicable)

• It is due to the rotation of the earth about it's axis

• It causes that blows over significant distances to deflect

• Wind that blows in the Northern Hemisphere deflects to the left

• Wind that blows in the Southern Hemisphere deflects to the left

Which is TRUE?

• Southern Hemisphere experiences summer from June to September

• Northern Hemisphere experiences winter from October to February

• When the Northern Hemisphere is experiencing summer, the Southern Hemisphere is usually experiencing winter

• Temperature is warmer in the Northern Hemisphere than the Southern Hemisphere from June to September

A monsoon wind is a seasonal wind that blows across regions and changes in direction due to seasonal changes (summer and winter.)

What do you think it means when there is a "Northeast Monsoon winds"?

(you may select more than one option if applicable)

• Winds are blowing from the Northeast

• Northern Hemisphere is experiencing winter

• Southern Hemisphere has higher pressure

• Southern Hemisphere is experiencing summer

What is caused by differences in air pressure?

• Time

• Precipitation

• Clouds

• Wind

Earth has a low air pressure zone at the equator because

• air is cold and sinks toward the surface of Earth there

• air is cold and moves away from the surface of the Earth there

• air is warm and moves away from the surface of the Earth there

• air is warm and moves toward from the surface of the Earth there

Earth has a high air pressure zone at the north pole because

• air is cold and sinks toward the surface of Earth there

• air is cold and moves away from the Earth there

• air is warm and moves away from the surface of the Earth there

• air is warm and sinks toward the surface of Earth there

What is wind?

• movement of air due to pressure differences

• disturbances in the magnetic field

• movement of air due to Earth's rotation

• movement of air due to clouds