Forms of Energy The ability to cause change

Forms of Energy: The ability to cause change, do work, or make things move. Law of Conservation of Energy: Energy cannot be created or destroyed it can only be transferred or transformed.

Mechanical Energy in the form of motion, motion position, or shape. ◦ Sound occurs as air particles move. ME = KE + PE (gravitational or elastic)

Nuclear Energy stored in the nucleus of an atom. ◦ Fission – the splitting of a nucleus releasing energy. Nuclear power plants. ◦ Fusion – the joining of two nuclei to form one will release energy. Stars

Chemical Energy Potential energy stored in chemical bonds. ◦ When bonds between atoms are broken energy is released. ◦ Food, fuels, matches ◦ Respiration Equation: C 6 H 12 O 6 → CO 2 + H 2 O + energy

Electromagnetic Energy that travels through space in waves caused by vibrating electric charge. ◦ Light, Microwaves, Infrared, Ultraviolet, radiowaves, x-rays, gamma rays. Electric Energy ◦ Caused by moving electrons. Can be potential or stored as in a battery. Magnetism ◦ Can do work or create electricity

Thermal Energy in the motion of particles. Thermal energy is the total kinetic and potential energy in the particles of an object. ◦ Remember the kinetic theory of matter. ◦ Faster motion = higher energy ◦ More particles = higher energy ◦ Slower motion = less energy ◦ Fewer particles =less energy

Multiple Transformations A series of energy transformations must occur for you to ride your bike. What are the forms of energy involved in each transformation?