Heat transfer

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs when heat moves from a hotter object to a cooler one through physical touch. Example: Ironing a shirt.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink, creating a circulation pattern. Example: Boiling water.

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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, allowing heat to be transferred through empty space. Example: Heat from the sun.

Front

What is an insulator?

Back

An insulator is a material that resists the transfer of heat. Insulators are used to keep heat in or out of an object. Example: Wool, rubber, and glass.

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What is a conductor?

Back

A conductor is a material that allows heat to flow through it easily. Conductors are often metals. Example: Copper and aluminum.

Front

How does heat transfer occur in a pot of boiling water?

Back

Heat transfer in a pot of boiling water occurs through convection. The water at the bottom heats up, rises, and is replaced by cooler water, creating a circulation.

Front

What happens to vinyl siding in a house fire?

Back

The vinyl siding warps due to radiation. The heat from the fire radiates to the siding, causing it to deform.

Front

What is the role of heat lamps for baby chickens?

Back

Heat lamps provide warmth through radiation, keeping baby chickens warm by emitting infrared radiation.

Front

What is 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 heat transfer in everyday life?

Back

An example is touching a hot stove, where heat is transferred to your hand through conduction.