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Standard Area - TECH: Learning Standards for Technology
(see MST standards under Previous Standard Versions)-
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Introduction - MST4.I.PS4.Introduction:
An underlying principle of all energy use is the Law of Conservation of Energy. Simply stated, energy cannot be created or destroyed.
Energy can be transformed, one form to another. These transformations produce heat energy. Heat is a calculated value which includes the temperature of the material, the mass of the material, and the type of the material. Temperature is a direct measurement of the average kinetic energy of the particles in a sample of material. It should be noted that temperature is not a measurement of heat.
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Major Understandings - MST4.I.PS4.1a:
The Sun is a major source of energy for Earth. Other sources of energy include nuclear and geothermal energy. -
Major Understandings - MST4.I.PS4.1b:
Fossil fuels contain stored solar energy and are considered nonrenewable resources. They are a major source of energy in the United States. Solar energy, wind, moving water, and biomass are some examples of renewable energy resources. -
Major Understandings - MST4.I.PS4.1c:
Most activities in everyday life involve one form of energy being transformed into another. For example, the chemical energy in gasoline is transformed into mechanical energy in an automobile engine. Energy, in the form of heat, is almost always one of the products of energy transformations. -
Major Understandings - MST4.I.PS4.1d:
Different forms of energy include heat, light, electrical, mechanical, sound, nuclear, and chemical. Energy is transformed in many ways. -
Major Understandings - MST4.I.PS4.1e:
Energy can be considered to be either kinetic energy, which is the energy of motion, or potential energy, which depends on relative position.
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