12/12/24 convection, conduction and radiation

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Warm fluid rises while cooler fluid sinks, creating a circulation pattern.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. Heat moves from the hotter object to the cooler one.

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.

Front

How does convection occur in a pot of boiling water?

Back

In boiling water, the water at the bottom heats up, becomes less dense, and rises, while cooler water descends, creating a circular motion.

Front

What is an example of conduction in everyday life?

Back

An example of conduction is when a metal spoon gets hot after being placed in a hot soup.

Front

How does radiation heat the Earth from the Sun?

Back

The Sun emits radiation that travels through space and warms the Earth when it reaches its surface.

Front

What role does convection play in weather patterns?

Back

Convection helps to distribute heat in the atmosphere, leading to the formation of weather systems and patterns.

Front

What happens to the temperature of a metal slide in the sun?

Back

The metal slide absorbs heat through radiation, causing its temperature to rise and become too hot to touch.

Front

What is the primary method of heat transfer in liquids?

Back

The primary method of heat transfer in liquids is convection.

Front

How does heat transfer through a solid object?

Back

Heat transfers through a solid object primarily by conduction.