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Questions and Answers
What is the unit of measurement for energy?
What is the unit of measurement for energy?
What type of energy is stored in food?
What type of energy is stored in food?
What is the process of energy transfer through direct contact?
What is the process of energy transfer through direct contact?
What is the law that states energy cannot be created or destroyed in a closed system?
What is the law that states energy cannot be created or destroyed in a closed system?
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What happens to the energy in a chemical reaction?
What happens to the energy in a chemical reaction?
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What is the term for the components involved in a chemical reaction?
What is the term for the components involved in a chemical reaction?
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What is the term for the average kinetic energy of particles?
What is the term for the average kinetic energy of particles?
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What type of energy is transferred through electromagnetic waves?
What type of energy is transferred through electromagnetic waves?
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What is the term for the energy of motion?
What is the term for the energy of motion?
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What is the process of energy transfer through the movement of fluids?
What is the process of energy transfer through the movement of fluids?
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Study Notes
Energy and Its Forms
- Energy is the ability to do work or cause a change and is measured in units of joules (J).
- Forms of energy include:
- Potential energy (stored energy)
- Energy we experience (sound, light, kinetic, thermal, electrical, and mechanical energy)
Types of Potential Energy
- Chemical energy (stored in food, fuel)
- Nuclear energy (stored in the center of particles)
- Gravitational energy (stored in an object when above the Earth's surface)
Energy Transfer Processes
- Conduction: transfer of energy by direct contact
- Convection: transfer of energy by the movement of fluids
- Radiation: transfer of energy by electromagnetic waves
Law of Conservation of Energy
- Energy cannot be created or destroyed in a closed system, it can only be transferred or transformed from one form to another
Energy Transfer in Chemical Reactions
- Chemical reactions involve a transfer of energy between the system and the surroundings
- Total energy is conserved, meaning it cannot be created or destroyed, only converted from one form to another or transferred between the system and its surroundings
- The system refers to the components involved in the chemical reaction
- The surroundings encompass everything outside the system
Temperature and Heat
- Temperature is a quantitative measurement often associated with heat
- Temperature is a measure of the average kinetic energy of particles measured in units of K or °C
- Heat is the energy transferred from a region of high temperature to a region of low temperature measured in units of J
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Description
Learn about the different types of energy, including potential energy, kinetic energy, thermal energy, and more. Understand how energy is measured and its various forms.
