Heat Transfer

What is the transfer of heat by movement of liquids or gases?

• conduction
• convection
• radiation

What is the transfer of heat by direct contact?

• conduction
• convection
• radiation

What is a transfer of heat energy by electromagnetic waves through space?

• conduction

• convection

• radiation

You buy a lava lamp from the store. As the lamp heats up, blobs of liquid rise to the top then sink back down to the bottom. This process continues because of _?_.

• conduction
• convection
• radiation

What happens when ice cubes melt in a glass?

• Heat travels from the ice to the warmer water.
• No energy is transferred.
• Heat is transferred from the warmer water to the ice cubes.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

In heat transfer, heat always flows from the _?_ substance to the _?_ substance.

• hotter to colder

• colder to hotter

• hotter to hotter

• colder to colder

Tags

NGSS.MS-PS1-4

Which of the following is the best example of conduction?

• A light bulb warming a lampshade
• An egg cooking in a frying pan
• Water boiling in a pot
• Gases circulating in the atmosphere

What causes the circulation of air in the atmosphere?

• Air in the atmosphere is heated by the sun and sinks to the ground.
• The ground is heated by the sun and then heats the air, causing the air to rise.
• Air loses heat to the ground and then rises upward to obtain more energy.
• The sun heats the clouds which forces the cooler air to move away and sink.

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

The moving of air in the image is an example of _?_.

• radiation

• convection

• conduction

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Tags

NGSS.MS-ESS2-5