Heat and Energy Transfer Lesson 5

Front

What is energy transformation?

Back

Energy transformation occurs when energy changes from one form to another.

Front

What is radiation in terms of heat transfer?

Back

Radiation is the transfer of heat through electromagnetic waves, such as feeling heat from a campfire or the sun warming a swimming pool.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, such as when snowflakes melt in your warm hands.

Front

What is convection?

Back

Convection is the transfer of heat through a fluid (liquid or gas) where hot fluid rises and cold fluid sinks.

Front

What is the difference between energy transfer and energy transformation?

Back

Energy transfer refers to the movement of energy from one place to another, while energy transformation refers to the change of energy from one form to another.

Front

Give an example of conduction.

Back

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

Front

Give an example of convection.

Back

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

Front

Give an example of radiation.

Back

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

Front

What is thermal balance?

Back

Thermal balance is the state where the amount of heat entering a system equals the amount of heat leaving the system.

Front

What is the role of fluids in convection?

Back

Fluids play a crucial role in convection as they allow for the movement of heat through the rising of warm fluid and sinking of cold fluid.