Thermal Energy Transfer Practice

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What does the Law of Conservation of Energy state?

Back

The Law of Conservation of Energy states that energy cannot be created nor destroyed, only converted from one form to another.

Front

Define conduction.

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is radiation in terms of heat transfer?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, which can occur without direct contact between objects.

Front

How does heat transfer by conduction occur?

Back

Heat transfer by conduction occurs when two objects at different temperatures are in direct contact, allowing heat to flow from the hotter object to the cooler one.

Front

What is an example of convection in everyday life?

Back

An example of convection is baking cookies in an oven, where hot air circulates around the cookies, transferring heat.

Front

What is the primary mechanism of heat transfer in liquids and gases?

Back

The primary mechanism of heat transfer in liquids and gases is convection.

Front

Explain the difference between conduction and convection.

Back

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

Front

What is an example of radiation?

Back

An example of radiation is feeling the warmth of the sun on your skin, which occurs without direct contact.

Front

What role does temperature play in heat transfer?

Back

Temperature differences drive heat transfer; heat flows from areas of higher temperature to areas of lower temperature.