Heat Flow 11.2

Front

What is heat insulation?

Back

Heat insulation is a method or material that reduces the transfer of heat between objects, helping to keep things warm or cool.

Front

What is blubber and its purpose in polar bears?

Back

Blubber is a thick layer of fat found in polar bears that insulates their bodies and keeps them warm in cold environments.

Front

What type of clothing is best for keeping warm in cold weather?

Back

Layers of clothing act as insulation, trapping warm air and keeping the body warm.

Front

Which material heats up and cools down the quickest: metal, glass, ceramic, or plastic?

Back

Metal heats up and cools down the quickest among these materials.

Front

What does an insulated lunch box do?

Back

An insulated lunch box keeps food, like yogurt, cool by reducing heat transfer.

Front

What is a conductor in terms of heat?

Back

A conductor is a material that allows heat to pass through it easily, such as metal.

Front

What is the role of insulation in buildings?

Back

Insulation in buildings helps maintain a comfortable temperature by reducing heat loss in winter and heat gain in summer.

Front

What happens to heat when it moves from a hot object to a cold object?

Back

Heat flows from the hot object to the cold object until they reach the same temperature.

Front

What is the difference between conduction and convection?

Back

Conduction is the transfer of heat through direct contact, while convection is the transfer of heat through the movement of fluids (liquids or gases).

Front

What is radiation in terms of heat transfer?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight warming the Earth.