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Teacher/Instructor Matt Jones
Matt Jones

M.Ed., George Washington University
Dept. chair at a high school

Matt is currently the department chair at a high school in San Francisco. In his spare time, Matt enjoys spending time outdoors with his wife and two kids.

Energy is best defined as the properties of an object that enables it to do work. Energy is a scalar measurement and is usually measured in Joules. According to the law of conservation of energy, energy is neither created nor destroyed but shared within a system. Types of energy include potential energy, kinetic energy and mechanical energy.

Energy, energy is the property of an object that enables it to do work. Okay but what, what are work and energy? Well the unit of energy which we call a joule is a force applied over a distance. Remember a force is a Newton and the distance we use, scientific unit for distance is meter, so a joule is force over distance okay. Let's look at some types of energy that we'll be working with in Physics okay. One of them is kinetic energy that's just the energy in motion so ball moving fast or anything with motion has kinetic energy. Potential energy, potential energy can have elastic energy like a spring or a rubber band or it can be an object up on a cliff and we give a little nudge we convert that potential energy into kinetic energy.

Thermal energy, thermal energy a unit we often times uses heat which we record in temperature that's the thermal energy of an object. Electro magnetic energy these are things like microwaves, visible light, infrared, uv rays those are all types of electro magnetic energy and then there's sound energy, sound energy are the vibrations that I'm producing right now that are traveling to you hitting your ear drum and sending a signal to your brain allowing you to listen to me talk. So these are the types of energy that we study in Physics.