Thermodynamics

Front

What is the first law of thermodynamics?

Back

In a closed system of constant mass, the energy involved in any physical or chemical change is neither created nor destroyed, but merely changed from one form to another.

Front

What does the second law of thermodynamics state?

Back

In any energy transfer, the total entropy of a closed system can never decrease over time, meaning energy tends to disperse or spread out.

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object possesses due to its motion.

Tags

NGSS.HS-PS2-1

Front

What is potential energy?

Back

Potential energy is the stored energy of an object based on its position or state.

Tags

NGSS.MS-PS3-2

Front

How is energy transformed in a hydroelectric plant?

Back

Kinetic energy from moving water is transformed into electric energy by turning a turbine.

Tags

NGSS.HS-PS3-3

Front

What is the law of conservation of energy?

Back

Energy cannot be created or destroyed; it can only be transformed from one form to another.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-3

Front

What is entropy?

Back

Entropy is a measure of the disorder or randomness in a system.

Front

What is an example of energy transformation?

Back

When a battery powers a flashlight, chemical energy is transformed into light energy.

Tags

NGSS.HS-PS3-3

Front

What is thermal energy?

Back

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

Tags

NGSS.HS-PS3-4

Front

What is the relationship between heat and temperature?

Back

Heat is the energy transferred between substances due to a temperature difference, while temperature measures the average kinetic energy of particles.

Tags

NGSS.HS-PS3-2