Section 3 Chpt. 14 Flashcards
How does energy transferred as heat always move?
From an object at a higher temperature to an object at a lower temperature
What can increase average kinetic energy?
Work
What are processes that involve energy transfer by work?
Mechanical processes
How do most heating systems raise the temperature?
By using a source of energy
What is energy from food transferred to?
Heat to blood
In cold water, your body will bring ____ to your skin.
Warmth
The body responds to your _____.
surroundings
____ or ___ transfers energy as heat in central heating system.
Heated water
Air transfers
What also uses warmed air or water?
Solar heating systems
What decreases in all energy transfers?
Usable energy
What minimizes undesirable energy transfers?
Insulation
-a material used to cool an area or an object to a temperature that is lower than the temperature of the environment
Refrigerant
Cooling systems often use ____ to transfer energy from their surroundings.
Evaporation
-transfers energy to the surrounding
Condensation
-can transfer energy to or from rooms
Heat pumps
