Wk 20a Wind

What causes wind?

• Differences in air pressure

• Differences in temperature

• Differences in humidity

• Differences in altitude

What is a jet stream?

• A fast-moving river of air in the upper atmosphere

• A slow-moving current of air near the surface

• A stream of water in the ocean

• A flow of lava from a volcano

What is a monsoon?

• A seasonal wind that changes direction

• A type of hurricane

• A type of tornado

• A type of earthquake

What is the main factor affecting wind speed and direction?

• Coriolis effect

• Humidity

• Temperature

• Altitude

Which wind is known for blowing from the sea to the land?

• Sea breeze

• Land breeze

• Mountain breeze

• Valley breeze

Which of the following is a type of regional wind?

• Monsoon

• Trade wind

• Westerlies

• Polar easterlies

What are polar easterlies?

• Winds blowing from the equator to the poles

• Global wind patterns found near Earth's poles

• Breezes blowing up valleys or mountain slopes

• Winds blowing from the sea to the land

What are valley breezes?

• Breezes that blow up valleys or mountain slopes on clear days

• Winds blowing from the sea to the land

• Winds blowing almost constantly in one direction

• Prevailing winds that flow from the west to the east

What is wind?

• A device that shows the direction of the wind

• A natural movement of air of any velocity

• A truncated cloth cone open at both ends

• A breeze blowing up valleys or mountain slopes

What is the purpose of a windsock?

• To measure wind speed

• To indicate the direction of the wind

• To create wind

• To stop wind