Efficiency
Definition
Efficiency measures how effectively a device or process converts input energy into useful output energy. It is calculated by dividing useful output energy by total input energy.
Analogy
Think of efficiency as using your study time wisely. If you spend most of your time focused on studying and only take short breaks, you are being efficient. But if you get easily distracted and waste a lot of time, your efficiency decreases.
Related terms
Work-Energy Theorem: This theorem states that work done on an object is equal to its change in kinetic energy.
Carnot Efficiency: This is the maximum possible efficiency for any heat engine operating between two temperatures.
Power Output: Power output refers to how much work or energy is produced per unit time.
"Efficiency" appears in:
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