Changes in Energy Study Guide

This set of flashcards covers key concepts related to changes in energy, including definitions of kinetic and potential energy, the law of conservation of energy, and transformations of energy in practical applications.

Kinetic Energy

Energy of motion.

Potential Energy

Stored energy.

Law of Conservation of Energy

The amount of energy in a system remains the same; energy cannot be created or destroyed.

Thermal Energy

A form of energy transferred from warmer objects to cooler objects.

Chemical Potential Energy

Energy stored in chemical bonds, which can be converted into various other forms of energy.

Gravitational Potential Energy (GPE)

Potential energy held by an object because of its high position compared to a lower height.

Energy Transformation

The process of changing energy from one form to another.

Energy Transfer

The movement of energy from one location to another.

Efficiency in Machines

It is impossible for a machine to be 100% efficient due to energy losses in the form of heat and sound.

Incandescent Light Bulb vs. LED Light Bulb

LED bulbs are more efficient as they produce less heat and use electricity more effectively.