Heat Transfer (II)

Front

What is Conduction?

Back

Conduction is the transfer of heat through a solid material without any movement of the material itself. It occurs when two objects at different temperatures are in direct contact.

Front

What is Convection?

Back

Convection is the transfer of heat through fluids (liquids and gases) caused by the movement of the fluid itself. Warmer parts of the fluid rise while cooler parts sink, creating a circulation pattern.

Front

What is Radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through, which is why heat from the sun can reach the Earth.

Front

Example of Conduction in daily life?

Back

Ironing a wrinkled shirt is an example of conduction, where heat is transferred from the iron to the fabric.

Front

Example of Convection in daily life?

Back

Adding hot water to your cold bath water is an example of convection, as the hot water mixes with the cold water, distributing heat.

Front

Example of Radiation in daily life?

Back

Heating food in a microwave oven is an example of radiation, as microwaves transfer energy directly to the food.

Front

How does Convection work in a bowl of soup?

Back

In a bowl of soup, the hot soup at the bottom rises to the top while the cooler soup at the top sinks, creating a convection current.

Front

What happens to butter on a hot pancake?

Back

The butter melts on a hot pancake due to conduction, as heat from the pancake transfers to the butter.

Front

What is the main difference between Conduction and Convection?

Back

Conduction occurs in solids through direct contact, while convection occurs in fluids through the movement of the fluid.

Front

What is an example of heat transfer by Radiation?

Back

The warmth felt from sunlight is an example of heat transfer by radiation.