Fluid Dynamics: Heat Transfer Concepts

Front

What is the effect of greenhouse gases in our atmosphere?

Back

Greenhouse gases trap heat, creating a 'blanket' around Earth, which helps to maintain the planet's temperature.

Front

What principle does a hot air balloon operate on?

Back

A hot air balloon works through convection, where hot air rises and cooler air descends.

Front

What are materials that easily transfer heat called?

Back

Conductors are materials that easily transfer heat.

Front

What type of radiation has longer wavelengths than red and can be felt as heat?

Back

Infrared Radiation has longer wavelengths than red and can be felt as heat.

Front

What happens to molecules in an object when it is heated?

Back

When an object is heated, the molecules begin to move faster.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and 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 infrared radiation.

Front

What are insulators?

Back

Insulators are materials that do not easily transfer heat.

Front

How does temperature affect molecular movement?

Back

As temperature increases, molecular movement increases.