convection
Liquids and gases can carry heat by bulk motion. This topic is part of Physics within Science & Nature. This page currently draws on 9 supporting questions, with answers and bonus facts available below.
convection trivia questions
Convection transfers heat through movement of what?
Answer: Fluid
Bonus fact: Liquids and gases can carry heat by bulk motion.
Warm air rises because it becomes what compared with cooler air?
Answer: Less dense
Bonus fact: Heating usually lowers air density.
What atmospheric circulation can form when warm air rises and cool air sinks?
Answer: Convection current
Bonus fact: Density differences drive circulation.
Why are aerogels excellent thermal insulators?
Answer: Their porous structure greatly limits heat transfer
Bonus fact: Tiny pores suppress conduction and convection.
How can cumulonimbus clouds grow so tall?
Answer: Strong rising air currents
Bonus fact: Powerful convection carries moist air high into the troposphere.
Cumulus clouds form mainly from what vertical motion?
Answer: Rising warm air
Bonus fact: Convection carries moisture upward.
What cloud type produces thunderstorms?
Answer: Cumulonimbus
Bonus fact: Deep convection creates cumulonimbus clouds.
Why does trapped air make materials like fiberglass good thermal insulators?
Answer: Air conducts heat poorly
Bonus fact: Small pockets also limit convection.
What slow movement within the mantle helps drive plate tectonics?
Answer: Convection
Bonus fact: Heat-driven flow contributes to plate motion.