Essay about Energy, The, And Energy

1169 Words Nov 19th, 2015 5 Pages
Did you know that every movement you do in this planet is done by using energy? In fact, you are using energy right now. Energy is the capability of producing work. Energy makes a change in an object. Force plays a role in deciding whether an object has done work or not (“Work and energy”, 2015). If the object moves towards the direction of the force, the work done is positive (“Work and energy”, 2015). If the object moves away from the force, the work being done is negative (“Work and energy”, 2015). An important aspect of energy is that it can never be destroyed or made, it can only be transferred into other bodies (“what is energy”, 2015). There is a set amount of energy in earth and that amount cannot increase and cannot decrease, this is called conservation of energy (“what is energy”, 2015). This was discovered by Julius Robert Mayer in the year of 1842 (“The Conservation of Mass-Energy”, 2015). About sixty years later Albert Einstein came up with the formula that described the conservation of energy which was E = mc2. (“The Conservation of Mass-Energy”, 2015). The E in the equation stands for energy (“what is energy”, 2015). M stands for mass and c stands for the speed that light is travelling (“what is energy”, 2015). As you can see the amount of energy an object has depends on its mass and the speed of lights. So if an object has a larger mass it will have more energy and if it has less mass it will have less energy. Other inventors and scientist also contributed…

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