Physics 11 Energy Heating and cooling systems

Which of the following is not used in conventional heating systems?

• Wood stoves

• Electric radiators

• Fossil fuel powered boilers

• Fossil fuel air systems

True or false: all heating and cooling systems transform energy

• True

• False

What type of transfer occurs inside the room of a forced-air heating system?

• Conduction

• Radiation

• Convection

What connects the furnace to the rooms of the building in a forced-air heating system?

• Pipes in the floor

• Ducts

• Coolant in closed tubes

• Coolant in open tubes

In a forced-air heated home, where would you expect the air returns to be?

• Near floor level

• Near ceiling level

• In the middle of the wall

• Near doorways

What is used to generate the thermal energy in a hot water system?

• A boiler

• A hot water tank

• A wood stove

• An electric radiator

True or false: In a hot water system, it is usually impossible to control the temperature in each room.

• True

• False

What type of system uses energy transfer to increase the efficiency of its transformation?

• Heat pump

• Forced-air

• Hot water

• All of the above

A heat pump system works very similarly to a

• Refrigerator

• Boiler

• Steam turbine

• Radiator

What lies in between the evaporator and condenser of an air conditioner?

• The compressor

• The radiator

• The expansion valve

• The boiler