Day 9 - Energy
Forms of energy
Energy can be found in various forms in nature. But energy is either potential energy or kinetic energy.
Potential energy
Potential energy is stored energy. Following are some forms of energy that contain stored potential energy.
Chemical Energy - Chemical energy is energy stored in the bonds of atoms and molecules. Examples - battery, coal, natural gas
Mechanical Energy - Energy stored in objects by tension. Example - Stretched rubber band
Nuclear Energy - Energy stored in the nucleus of an atom. It’s the energy that holds the nucleus together
Gravitational Energy - Energy stored in an object’s height. The higher and heavier the object more energy is stored.
Kinetic energy
Kinetic energy is the motion of waves, electrons, atoms, molecules, substances and objects. Following are some forms of energy that contain stored kinetic energy.
Radiant Energy - Electomagnetic energy that travels in transverse waves. Example - X-Rays, light, radiowaves
Thermal Energy - It is the energy that comes form the movement of atoms and molecules in a substance. Example - Geothermal energy
Motion Energy - Energy stored in moving objects. The faster an object moves the more its motion energy. Example - Wind
Sound Energy - Sound is energy moving through substances in longitudinal waves. When an object vibrates it transfers the energy in the form of waves through the medium.
Electrical Energy - Electrical energy is energy delivered by tiny charged particles called electrons.