What is the liquid that evaporates inside the refrigerator to "create" the cold temperature?

What is the liquid that evaporates inside the refrigerator to "create" the cold temperature?

Answer: refrigerant

Where do you think would the heating degree days would be the highest?

Where do you think would the heating degree days would be the highest?

Answer: north pole

Which of the following is an indicator of heating requirements?

Which of the following is an indicator of heating requirements?

Answer: HDD

How can energy usage due to water heating be minimized?

How can energy usage due to water heating be minimized?

A) By turning the water heater thermostat temperature down
B) By taking a shower instead of a dip in bath tub
C) By not using running water while brushing your teeth

Which of these do not require a medium in transferring heat?

Which of these do not require a medium in transferring heat?

Answer: radiation

Which one of the following is not a mode of heat transfer?

Which one of the following is not a mode of heat transfer?

Answer: translation

Which component of a refrigerator lowers the temperature of the refrigerant?

Which component of a refrigerator lowers the temperature of the refrigerant?

Answer: expansion valve

Which energy source is used most for US home heating?

Which energy source is used most for US home heating?

Answer: natural gas

How is light produced?

How is light produced?

Answer: collision of moving particle with the atom

Which primary energy source contributes the most to home heating requirements?

Which primary energy source contributes the most to home heating requirements?

Answer: natural gas

How can passive energy be utilized?

How can passive energy be utilized?

Answer: put more windows on the sunny side of the house (south)

Which is the largest portion of energy consumed by homes?

Which is the largest portion of energy consumed by homes?

Answer: space heating