Physical Science Review Part 7

Front

What does the Second Law of Thermodynamics state?

Back

The Second Law of Thermodynamics states that the total entropy of an isolated system can never decrease over time, and it will always increase until it reaches equilibrium.

Front

What is heat transfer by conduction?

Back

Conduction is the process of heat transfer through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is heat transfer by convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What is heat transfer by radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation, which can occur in a vacuum.

Front

What is entropy?

Back

Entropy is a measure of the disorder or randomness in a system; higher entropy means more disorder.

Front

How does increasing entropy affect energy in a system?

Back

As entropy in a system increases, the energy within the system becomes less ordered.

Front

Where does ice typically form in bodies of water?

Back

Ice tends to form at the surface of bodies of water due to the lower density of ice compared to liquid water.

Front

What is the relationship between entropy and the Second Law of Thermodynamics?

Back

Entropy is most closely related to the Second Law of Thermodynamics, which states that entropy in an isolated system will increase over time.

Front

What is the First Law of Thermodynamics?

Back

The First Law of Thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.