Genre: Information/Explanation

Energy is a fact of life . How many times have you heard someone say ' Oh dear , I 've just no energy left ' , or ' This chocolate bar will give you lots of energy ' . But what exactly IS energy ? There are lots of different kinds of energy depending on the situation or system you are looking at . Of course , doing different things requires different amounts of energy . Well , there 's kinetic , potential , electric , heat ( thermal ) , sound , nuclear , light , chemical , strain and gravitational ... The Sun is the most energetic body in the solar system and has lots of different types of energy associated with it , from the energy that is released in hydrogen bombs to the electrical energy that powers your computer . Click on the Sun's Core to find out more about energy in the Sun .