Energy Fundamentals

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).

This quiz covers the basics of energy, including its definition, forms, measurement, and principles of conservation and transfer.