Thermal Equilibrium TEK 6.9B

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is convection?

Back

Convection is the transfer of thermal energy in a fluid (liquid or gas) where warmer parts rise and cooler parts sink, creating a current.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight, which can travel through a vacuum.

Front

How does heat transfer from your warm hand to a cold cup?

Back

Heat transfers from your warm hand to the cold cup because heat moves from warmer to cooler objects.

Front

What happens when you place a cold object in a warmer environment?

Back

The cold object will absorb heat from the warmer environment until both reach the same temperature.

Front

What is the role of temperature in heat transfer?

Back

Temperature determines the direction of heat transfer; heat flows from higher temperature areas to lower temperature areas.

Front

What is an example of conduction?

Back

An example of conduction is touching a hot stove and feeling the heat transfer to your hand.

Front

What is an example of convection?

Back

An example of convection is boiling water, where hot water rises to the top and cooler water sinks.

Front

What is an example of radiation?

Back

An example of radiation is feeling the warmth of the sun on your skin.