using thermal energy

Front

What does the 1st Law of Thermodynamics state?

Back

The 1st Law of Thermodynamics states that if the mechanical energy of a system is constant, the increase in the thermal energy of the system equals the sum of the thermal energy transferred into the system and the work done on the system.

Front

True or False: A heat engine can transfer all the energy it absorbs as heat into work.

Back

True

Front

What is the first law of thermodynamics a restatement of?

Back

The first law of thermodynamics is a restatement of the conservation of energy.

Front

In a heat engine, some of the energy from the input heat is used to do what?

Back

Work.

Front

What is the most common type of heating system in use today in most homes in the United States?

Back

Forced air system.

Front

Define thermal energy.

Back

Thermal energy is the total kinetic energy of particles in a substance, which is related to its temperature.

Front

What is a heat engine?

Back

A heat engine is a device that converts thermal energy into mechanical work.

Front

What is thermal insulation?

Back

Thermal insulation is a material or method that reduces the transfer of heat between objects or environments.

Front

What is the Zeroth Law of Thermodynamics?

Back

The Zeroth Law of Thermodynamics states that if two systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other.

Front

What is the principle of entropy?

Back

The principle of entropy states that in an isolated system, the total entropy can never decrease over time.