Heat Transfer

A group of friends gather around a fire to stay warm.

• conduction
• convection
• radiation

Which direction will the heat flow while this ice cap melts?

• there is no heat transfer

• from the icecap to the water

• from the water to the icecap

• heat always goes down

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.

What kind of heat transfer happens when the sun is heating your body?

• Conduction
• Radiation
• Convection
• Density

Tags

NGSS.MS-PS3-4

Why do the tectonic plates on Earth's surface move?

• Conduction

• Convection Currents

• Radiation

• Gravity

Tags

NGSS.MS-ESS2-3

Which principle best explains how this thermometer works?

• a. A liquid changes to a gas when heated.

• b. A gas changes to a liquid when heated.

• c. A liquid expands when heated and contracts when cooled.

• d. A liquid contracts when heated and expands when cooled.

Tags

NGSS.MS-PS1-4

Heat transfer by conduction occurs when molecules

• a. flow as currents through liquids

• b. form waves that travel through space

• c. become less dense and rise

• d. collide with other molecules

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Energy from the Sun reaches Earth mainly by the process of

• a. conduction

• b. convection

• c. reflection

• d. radiation

Which process is primarily responsible for the transfer of heat in a boiling pot of water?

• a. conduction

• b. convection

• c. radiation

• d. condensation

Tags

NGSS.MS-PS1-4

If a substance has more molecules it has ________.

• a. lower temperature

• b. more Kelvins

• c. more Centigrade

• d. more thermal energy