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Questions and Answers
What is energy a measurement of?
What can happen to energy?
What is a characteristic of energy?
What is NOT a property of energy?
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What is a fundamental principle of energy?
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What is the primary function of energy?
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What happens to energy during most energy conversions?
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What is energy efficiency a measure of?
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What is the formula to calculate energy efficiency?
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What is wasted energy an example of?
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Study Notes
What is Energy?
- Energy is the ability of something to do work.
- It is a measurement of the capacity to cause a change or to perform a task.
Characteristics of Energy
- Energy can be observed, making it a tangible phenomenon.
- Energy can be stored, allowing it to be utilized at a later time.
- Energy can take many forms, making it a versatile and dynamic concept.
Energy Conservation
- Energy cannot be created or destroyed, a fundamental principle in physics.
- Energy can only be transferred or transformed from one form to another.
- Energy cannot be lost, it is always conserved in a closed system.
Energy Basics
- Energy is a measurement of the ability of something to do work.
- Energy can be observed, stored, and measured in many forms.
Energy Conservation
- Energy cannot be created or destroyed, only transferred or transformed.
- Energy cannot be lost, it can only be transferred or transformed from one form to another.
Energy Efficiency
- Energy efficiency is a measure of how much input energy is converted into useful output energy.
- Input energy is the energy you start with, while useful energy is the output energy that's desired in the end.
- Energy efficiency formula: (Useful Energy ÷ Input Energy) × 100, with the answer in a percentage.
Energy Waste
- Wasted energy is the output energy that is not wanted or desired.
- Most energy conversions waste some energy, usually in the form of heat (thermal energy).
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Description
This quiz covers the basics of energy, including its definition, forms, measurement, and principles of conservation and transfer.
