5.3 ✨ using thermal Mastery

Front

What happens to the air temperature in a kitchen if the refrigerator door is left open on a hot day?

Back

The air temperature in the kitchen will not decrease; it will actually increase because the refrigerator expels heat into the kitchen.

Front

What type of solar heating system uses solar collectors?

Back

Active solar heating systems use solar collectors.

Front

How does a heat pump differ from an air conditioner?

Back

A heat pump can both heat and cool, while an air conditioner can only cool.

Front

What heating system uses fuel to heat air that is then blown through ducts?

Back

Forced air heating systems use fuel to heat a mass of surrounding air.

Front

What device transfers thermal energy from a cooler region to a warmer region?

Back

A refrigerator transfers thermal energy from a cooler region to a warmer region.

Front

Define thermal energy.

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

What is the principle of conservation of energy in thermal systems?

Back

The principle states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the function of a thermostat in a heating system?

Back

A thermostat regulates the temperature by controlling the heating or cooling system.

Front

Explain the concept of heat transfer by conduction.

Back

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

Front

What is the role of insulation in thermal systems?

Back

Insulation reduces heat transfer, helping to maintain desired temperatures in buildings.