Heat Transfer

Front

What is convection and how does it occur in fluids?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks, creating a circulation pattern.

Tags

NGSS.MS-ESS2-6

Front

What is conduction and how does it work in solids?

Back

Conduction is the transfer of heat through direct contact between materials. In solids, heat is transferred as particles vibrate and collide with neighboring particles, passing energy along.

Front

What is radiation in the context of heat transfer?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through, allowing heat to be transferred through a vacuum.

Tags

NGSS.MS-PS4-2

Front

How does the temperature of air change with height in a room?

Back

The temperature of air generally decreases with height due to convection, as warm air rises and cooler air sinks.

Front

What role does copper play in heat transfer in cooking?

Back

Copper is an excellent conductor of heat, allowing for even heat distribution in cookware, which helps in cooking food uniformly.

Tags

NGSS.MS-PS3-3

Front

What is the difference between conduction and convection?

Back

Conduction is heat transfer through direct contact in solids, while convection is heat transfer through the movement of fluids.

Front

How does heat transfer occur in a swimming pool?

Back

In a swimming pool, heat transfer occurs through convection, where warm water rises to the surface and cooler water sinks.

Tags

NGSS.MS-PS1-4

Front

What is the effect of radiation on materials exposed to high temperatures?

Back

Materials exposed to high temperatures can absorb radiant heat, causing them to heat up, warp, or even melt, as seen with vinyl siding near a fire.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

How can you feel heat from an iron without direct contact?

Back

You can feel heat from an iron through radiation, as the heat is transferred through electromagnetic waves to your skin.

Tags

NGSS.MS-PS4-2

Front

What factors affect the rate of heat transfer by conduction?

Back

The rate of heat transfer by conduction is affected by the material's thermal conductivity, the temperature difference, and the surface area in contact.