Thermal Energy - Unit 5, Week 2

Front

What is convection?

Back

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

Front

What is the primary process responsible for heat transfer in liquids?

Back

Convection is the primary process responsible for heat transfer in liquids, as it involves the movement of the liquid itself.

Front

How does heat move between objects?

Back

Heat always moves from hot to cold objects until thermal equilibrium is reached.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object, related to its temperature.

Front

What is heat?

Back

Heat is the transfer of thermal energy from one object to another due to a temperature difference.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, without the movement of the materials themselves.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as light or infrared radiation.

Front

What is an example of convection in everyday life?

Back

An example of convection is the way warm air rises from a heater and cool air sinks, creating a circulation of air in a room.

Front

What happens to air when it is heated?

Back

When air is heated, it becomes less dense and rises, while cooler, denser air sinks.

Front

What is the role of convection currents in weather?

Back

Convection currents in the atmosphere help to distribute heat and moisture, influencing weather patterns.