Conduction Convection and Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids.

Front

What is convection?

Back

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

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as light, and does not require a medium to travel.

Front

In which direction does heat move?

Back

Heat moves from warmer to cooler areas.

Front

What happens to molecules when they are heated?

Back

When molecules are heated, they gain energy, move faster, and become less dense.

Front

What happens to warmed molecules after they rise to the top?

Back

They cool down, become more dense, and sink.

Front

What is the role of chloroplasts in plant cells?

Back

Chloroplasts capture sunlight to perform photosynthesis, converting light energy into chemical energy.

Front

What is the function of mitochondria in cells?

Back

Mitochondria are known as the powerhouse of the cell, where energy is created in the form of ATP.

Front

What is the difference between conduction and convection?

Back

Conduction occurs in solids without movement of the material, while convection involves the movement of fluids.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact do not exchange heat, meaning they are at the same temperature.