## Understand Energy with the Help of a Free Online Physics Tutor

7/2/2014

Description:  Are you currently studying energy, and it is difficult to understand energy in all of its different forms?   Join a free class with an online physics tutor to find out how easy it is to understand the physics of Energy.

Article Title: Understand the Physics of Energy

The physics of energy is really complex, and that’s why it’s a good idea to get some free online help from an expert physics tutor.  There are so many concepts and terms that you need to understand when you are trying to understand the basics about energy.  Understanding these terms is the first step to strengthen your understanding of energy.

Let’s review a few terms, and provide a few resources that will provide you with further guidance about these topics.

The Joule

This is a unit of measurement that energy is measured by according to the international system of units (SI).   For additional information about the joule, check out this website: http://www.universetoday.com/61490/what-is-a-joule/.  This informative article will give you additional information about the joule.  The practical examples and explanation will give you a clearer of what the joule is all about!

The term “Joule” was given after the man who really contributed greatly to physics as a whole.  He was a scientist who focuses on electricity, heat, and mechanics.  He understood the basic concepts of electricity over a century.  You can find more information about his contribution to physics by reading this article that summarizes all of his achievements.

Kinetic Energy

Kinetic energy is the energy of motion, and understanding motion is one of the foundations for understanding physics.  Kinetic energy exists in many forms, so you will need to be able to define and understand those forms.  For additional information, use this website as a guide.

http://www.physicsclassroom.com/class/energy/Lesson-1/Kinetic-Energy

This website provides a very thorough explanation of what kinetic energy is all about.  You will be able to see it explained in words; as well as, expressed in a formula for more advanced understanding.  You can test your concepts by taking the quick quizzes available on the website.   Don’t forget to check your answers!  This website offers free educational resources and online tutoring provided by expert physics tutors.

Potential Energy

Potential energy is everywhere.  It is generally understood to be energy that is stored or not currently in motion.  It can exist wherever something has mass.  Mass is defined as anything that has weight and takes up space.

Refer to this informative web page that gives additional information about potential energy.  You can easily understand it by referring to the formula that expresses potential energy.  Try the experiment and exercises at the end of the page to challenge you.

http://jersey.uoregon.edu/vlab/PotentialEnergy/

Mechanical Energy

The sum of potential and kinetic energy is mechanical energy.  Understanding the motion and position of an object is important to understand mechanical energy.  The electric motor and steam engine are great examples of machines that use mechanical energy.

http://www.whatismechanicalenergy.com/

This webpage gives some additional information about mechanical energy.  It provides a very thorough explanation on how to convert mechanical energy to other forms of energy.  These forms of energy are very useful for us, such as the windmills.

Chemical Energy

Chemical energy involves potential energy.   Since potential energy is stored, chemical energy involves the ability of a chemical to change via a reaction to other substances, such as a catalyst.  This chemical change happens at an atomic level.  Batteries and light bulbs are a couple examples of things that would undergo a chemical change.   Here is a fun website that helps to explain the basics of chemical energy.

http://www.eschooltoday.com/energy/kinds-of-energy/what-is-chemical-energy.html

The page will also provide a video and a visual aid as an example to help you understand chemical energy.  This lesson is directed towards younger learners who may be studying physical science. This is an excellent online resource that is free, and serves as a great tutorial to introduce students to physics.

Electrical Energy

Electrical energy is a form of potential energy.  It is important to understand what atoms are when learning about electrical energy.  Atoms are present wherever there is matter.  These atoms are constantly in motion.  The speed of atoms will determine how much energy is created.  A great website that will explain how an electric current works:  http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elecur.html