Energy

IMPORTANT

Practice Other Chapters from Energy

Physical Sciences>Energy>Create a computational model to calculate the change in the energy of one component in a system when the change in energy of the other component(s) and energy flows in and out of the system are known.

This chapter consists of topics like Definitions of Energy - Energy is a quantitative property of a system that depends onthe motion and interactions of matter and radiation within thatsystem. That there is a single quantity called energy is due tothe fact that a system’s total energy is conserved, even as,within the system, energy is continually transferred from oneobject to another and between its various possible forms. etc.

Physical Sciences>Energy>Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as a combination of energy associated with the motions of particles (objects) and energy associated with the relative position of particles (objects).

This chapter consists of topics like Definitions of Energy - Energy is a quantitative property of a system that depends onthe motion and interactions of matter and radiation within thatsystem. That there is a single quantity called energy is due tothe fact that a system’s total energy is conserved, even as,within the system, energy is continually transferred from oneobject to another and between its various possible forms.At the macroscopic scale, energy manifests itself in multipleways, such as in motion, sound, light, and thermal energyThese relationships are better understood at the microscopicscale, at which all of the different manifestations of energy canbe modeled as a combination of energy associated with themotion of particles and energy associated with the configuration(relative position of the particles). In some cases the relativeposition energy can be thought of as stored in fields (whichmediate interactions between particles). This last conceptincludes radiation, a phenomenon in which energy stored infields moves across space.The availability of energy limits what can occur in any system. etc.

Physical Sciences>Energy>Design, build, and refine a device that works within given constraints to convert one form of energy into another form of energy.

This chapter consists of topics like Defining and Delimiting Engineering Problems - Criteria and constraints also include satisfying any requirements set by society, such as taking issues of risk mitigation into account, and they should be quantified to the extent possible and stated in such a way that one can tell if a given design meets them. etc.

Physical Sciences>Energy>Plan and conduct an investigation to provide evidence that the transfer of thermal energy when two components of different temperature are combined within a closed system results in a more uniform energy distribution among the components in the system (second law of thermodynamics).

This chapter consists of topics like Conservation of Energy and Energy Transfer - Energy cannot be created or destroyed, but it can be transportedfrom one place to another and transferred between systems.Uncontrolled systems always evolve toward more stable states—that is, toward more uniform energy distribution (e.g., waterflows downhill, objects hotter than their surroundingenvironment cool down) etc.

Physical Sciences>Energy>Develop and use a model of two objects interacting through electric or magnetic fields to illustrate the forces between objects and the changes in energy of the objects due to the interaction.

This chapter consists of topics like Relationship Between Energy and Forces - When two objects interacting through a field change relative position, the energy stored in the field is changed. etc.