7.E.1.5 Exit Ticket 9-26

Wind is caused mainly by air pressure differences that result from...

• a. uneven heating of the Earth's atmosphere.
• b. absorption of ultraviolet radiation by Earth's land masses.
• c. radiation of heat from Earth's land masses to water bodies.
• d. rotation of Earth on its axis.

During which process does heat transfer occur because of density differences?

• a. conduction
• b. convection
• c. radiation
• d. reflection

As air on the surface of Earth warms, the density of the air...

• a. decreases 
• b. increases
• c. remains the same

Air pressure is usually highest when the air is...

• a. cool and humid
• b. cool and dry
• c. warm and humid
• d. warm and dry

The air above a burning candle is heated and rises. Which answer choice correctly identifies the type of heat transfer with the rising air and the change in air density above the burning candle?

• a. type of heat transfer  conduction
  change in air density   density increases
• b. type of heat transfer  conduction
  change in air density   density decreases
• c. type of heat transfer convection
  change in air density   density increases
• a. type of heat transfer  convection
  change in air density   density decreases