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The mass and energy were in fact equivalent, according to the formula mentioned above. Furthermore, the equation E is equal to m c-squared, in which energy is put equal to mass, multiplied by the square of the velocity of light, showed that very small amounts of mass may be converted into a very large amount of energy and vice versa. A sliding hockey puck comes to rest because friction converts its kinetic energy into heat.Įinstein’s Theory of Relativity "It followed from the special theory of relativity that mass and energy are both but different manifestations of the same thing - a somewhat unfamiliar conception for the average mind.Energy can be changed from one form to another but it can never be created or destroyed.In any energy transformation, some energy changes to heat. Radiant Energy  Chemical Energyīurning fuels changes chemical energy into mechanical energy Chemical Energy  Mechanical EnergyĪ lightbulb changes electrical energy to light energy Electrical Energy  Light Energy Green plants change radiant energy (light) to chemical energy. Energy TransformationsYou Try It…Įlectrical ThermalElectrical  Mechanical

ceiling fan digital clock hair dryer For each device, describe which form or forms of energy the electrical energy becomes. Thinks about the following devices in terms of energy transformations. Many common devices transform electrical energy into other forms. Chemical EnergyMechanical EnergyĬhemical energy in food is also transformed to the thermal energy your body uses to maintain temperature. Your body transforms the chemical energy in your food to mechanical energy you need to move your muscles. Mechanical Energy  Electrical Energy Mechanical energy of moving water can be transformed into electrical energyĪ toaster transforms electrical energy into thermal energy to toast your bread Electrical Energy Thermal Energy The lava flowing from this volcano has a large amount of thermal energy.Įnergy can be changed, or transformed, from one form to another. The faster the molecules in an object move, the more thermal energy the object has. Thermal energy is the energy an object has due to the motion of its molecules.Energy of motion used to do work Wind Flowing water Machines Your body when you move.Energy given off by vibrating objects energy we can hear.Xrays “David Banner belted by gamma rays turns into The Hulk” Energy that travels as electromagnetic waves.Stretched Rubber Band Compressed springĮlectrical Energy Energy of moving electrical charges Electrical charges moving through wire Lightning energy stored in elastic materials as the result of their stretching or compressing.energy stored in an object as the result of its height Pendulum Roller coaster car at top of hill.energy stored in the nucleus of an atom released when nuclei split apart or join together Nuclear Fusion Nuclear Fission Nuclear Power Plants Fusion in the sun.energy stored in bonds that hold atoms together as molecules.Each kind can be changed into other kinds.Several forms of energy have been defined.