Internal Energy: Difference between revisions
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Internal Energy, as referred to in Intro Physics, is energy within a system. When determining the specifics of internal energy it is best to refer to the real system of the interaction, rather than the point-particle system. The system may consist of internal interactions, such as spring interactions and thermal energy transfer. Internal Energy is any energy in the system other than movement of the center of mass. | Internal Energy, as referred to in Intro Physics, is energy within a system. When determining the specifics of internal energy it is best to refer to the real system of the interaction, rather than the point-particle system. The system may consist of internal interactions, such as spring interactions and thermal energy transfer. Internal Energy is any energy in the system other than movement of the center of mass. | ||
'''Internal Energy can include, but is not limited to:''' | '''Internal Energy can include, but is not limited to:''' | ||
Vibrational Energy: The potential energy of macroscopic springs cannot be modeled as a point particle system, and is often used to represent bonds between atoms in different materials. | Vibrational Energy: The potential energy of macroscopic springs cannot be modeled as a point particle system, and is often used to represent bonds between atoms in different materials. | ||
Thermal Energy: Thermal Energy is any energy in the form of heat, or changes in energy from heat transfer. | |||
Thermal Energy: Thermal Energy is any | |||
energy in the form of heat, or changes in energy from heat transfer. | |||
Rotational Energy: Rotational energy is energy of real system about the center of mass. | Rotational Energy: Rotational energy is energy of real system about the center of mass. | ||
Chemical Energy: When a person runs, the change in kinetic energy of the runner is often affiliated with a loss in chemical energy. | Chemical Energy: When a person runs, the change in kinetic energy of the runner is often affiliated with a loss in chemical energy. | ||
Revision as of 18:30, 5 December 2015
Claimed by Michelle McIntire M06
Main Idea
Internal Energy, as referred to in Intro Physics, is energy within a system. When determining the specifics of internal energy it is best to refer to the real system of the interaction, rather than the point-particle system. The system may consist of internal interactions, such as spring interactions and thermal energy transfer. Internal Energy is any energy in the system other than movement of the center of mass.
Internal Energy can include, but is not limited to:
Vibrational Energy: The potential energy of macroscopic springs cannot be modeled as a point particle system, and is often used to represent bonds between atoms in different materials.
Thermal Energy: Thermal Energy is any
energy in the form of heat, or changes in energy from heat transfer.
Rotational Energy: Rotational energy is energy of real system about the center of mass.
Chemical Energy: When a person runs, the change in kinetic energy of the runner is often affiliated with a loss in chemical energy.
A Mathematical Model
Vibrational Energy:
Thermal Energy:
Rotational Energy:
Chemical Energy:
A Computational Model
You can use a computational model to track Kinetic Energy of the point-particle system. Using the change in this Kinetic Energy and the Change in Energy due to the surroundings we can determine the change in Internal Energy of a system.
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