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DIRECTIONS- Read EVERY Slide • READ pages 446-452 • Setup your ISN – Pg. 29: Chapter 15, Energy, book pgs. 446-467 – Pg. 31: Forms of Energy, book pg. 446-452 – *Add these pages to your TOC • Take notes on pg. 31- only copy down what is in purple • Write a summary AND interact with your notes • Homework: Forms of energy worksheet (read the directions to color the picture)- You may put this in your folder or tape it on page 30 of your ISN Forms of Energy • All energy can be considered to be kinetic energy, potential energy, or the energy in fields such as those produced by electromagnetic waves – Ex: fireworks, nuclear energy, lightning bolts, etc. • The major forms of energy are mechanical energy, thermal energy, chemical energy, electrical energy, electromagnetic energy, and nuclear energy Mechanical Energy • Mechanical Energy- the energy associated with the motion and position of everyday objects – Not limited to machines – The sum of an object’s potential energy and kinetic energy Mechanical Energy = KE + PE – Ex: speeding trains, bouncing balls, sprinting athletes • Does NOT include thermal, chemical or other energy associated with the motion or arrangement of atoms or molecules Thermal Energy • Thermal Energy- the total potential and kinetic energy of all the microscopic particles in an object • When an object’s atoms move faster, its thermal energy increases and the object becomes warmer Chemical Energy • Chemical Energy- the energy stored in chemical bonds – When bonds are broken, the released energy can do work – Example: wood burning, when gasoline is burned Electrical Energy • Electrical Energy- the energy associated with electric charges – Electric charges can exert forces that do work – Example: batteries Electromagnetic Energy • Electromagnetic Energy- a form of energy that travels through space in the form of waves – Radiated by the sun – Examples: visible light, X-rays Nuclear Energy • Nuclear Energy- the energy stored in atomic nuclei – Examples: nuclear fission (is a process that releases energy by splitting nuclei apart) and nuclear fusion (releases energy when less massive nuclei combine to form a more massive nucleus)
