Final answer:
The type of cooling system can be determined by the method used to remove thermal energy, such as refrigeration. Electricity is the most common energy source for cooling appliances like air conditioners and refrigerators.
Step-by-step explanation:
The type of cooling system can be determined by looking at the method used to remove thermal energy from the cooler environment. For example, air conditioners use refrigerants to cool the air, while a refrigerator uses a compressor. The energy source for cooling can vary, but it is typically electricity.
For example, air conditioners and refrigerators use electricity to power the cooling process. The amount of thermal energy that can be moved per unit time is measured in the same units as heaters, such as Watts or British thermal units (Btu) per hour. In some countries, an Energy Star Rating out of 5 stars is used to indicate the energy efficiency of the appliance, with more stars indicating higher efficiency.
Overall, the cooling system and energy source for appliances like air conditioners and refrigerators can vary, but they typically involve removing thermal energy from the environment using methods like refrigeration and compressors, and they are powered by electricity.