Lesson 19: Using Thermal Energy

Using Thermal Energy

Thank you, William Carrier, for air conditioning

​We can use thermal energy by transforming it into other forms of energy. We can also transform other forms of energy into thermal energy like in a space heater, a toaster, and an engine.

​Thermal Energy

Heating Appliances​

​Devices which convert electric energy into thermal energy are called heating appliances. Although all electrical appliances generate thermal energy, that is not always their intended purpose.

​Thermostat

​A thermostat is a device that regulates the temperature of a system.

Refrigerator

​A refrigerator is a device that uses electrical energy to transfer thermal energy from a cooler location to a warmer one.

Heat Engine (Combustion Engine)

​A heat engine is a device which converts thermal energy to mechanical energy.

Multiple Choice

A __________ converts thermal energy into mechanical energy.

• Heat Engine

• Thermostat

• Refrigerator

• Toaster

Multiple Choice

A ____________ regulates the temperature of a system.

• Thermostat

• Thermometer

• Therdadeter

• Thermophile

Multiple Choice

True or False:

In every transformation of energy, some energy is destroyed.

• True

• False

Multiple Choice

True or False:

Whenever electric energy is converted into another form of energy, some of that energy is "lost" as thermal energy.

• True

• False

Multiple Choice

A bimetallic coil in this device helps control the temperature in your house.

• Thermostat

• Heat Engine

• Thermometer

• Refrigerator