TYPES OF ENERGY

mechanical energy

• the sum of kinetic energy and potential energy

• ex. riding a bike, clocks, planes

kinetic energy

• motion of an object

• the amount depends on both the mass and velocity of an object

• ex. same as mech

potential energy

• object’s position or state

• can be converted to kinetic energy - vice versa

• ex. lift an object → gravitational potential energy

let it fall → potential to kinetic

thermal energy

• temperature of an object

• transferred through a process like conduction, convection, and radiation

ionization energy

• the amount of enrgy required to remove an electron from an atom or a positive ion

• oftex expressed in energy units

nuclear energy

• released through nuclear reactions

• energy source of power plants and the sun

sound energy

• movement of energy through a substance

• ex. talking or singing

chemical energy

• stored in the chemical bonds of molecules

• when chemical reactions occur, the energy can be released or absorbed

• ex. foods, fuel, batteries