![]() It takes energy to get an object moving, and energy is released when an object slows down. The faster an object moves, the more energy is stored. Motion energy is energy stored in moving objects. Geothermal energy is the thermal energy in the earth. Heat increases when these particles move faster. Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Sunshine is radiant energy, which provides the fuel and warmth that make life on earth possible. ![]() Radiant energy includes visible light, x-rays, gamma rays, and radio waves. Radiant energy is electromagnetic energy that travels in transverse waves. Kinetic energy is the motion of waves, electrons, atoms, molecules, substances, and objects. Hydropower is another example of gravitational energy, where gravity forces water down through a hydroelectric turbine to produce electricity. When a person rides a bicycle down a steep hill and picks up speed, the gravitational energy is converting to motion energy. The higher and heavier the object, the more gravitational energy is stored. Gravitational energy is energy stored in an object's height. Large amounts of energy can be released when the nuclei are combined or split apart. Nuclear energy is energy stored in the nucleus of an atom-the energy that holds the nucleus together. Compressed springs and stretched rubber bands are examples of stored mechanical energy. ![]() Mechanical energy is energy stored in objects by tension. For example, chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car's engine. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Potential energy is stored energy and the energy of position.Ĭhemical energy is energy stored in the bonds of atoms and molecules.
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