CAS AS 101 Midterm: Energy-Midterm 2.docx
16 Jan 2014
School
Department
Course
Professor
Document Summary
Kinetic energy: (ke: macroscopic objects, planet orbiting object, car driving on road, ball bouncing, ke = . 5 m v2, microscopic objects, atoms and molecules, thermal energy of an object is the total kinetic energy of all the atoms and molecules it contains. Thermal energy and temperature: related, but not same thing, thermal energy = total kinetic energy of atoms, temperature measures avg kinetic energy of atoms, example= 400 oven and 212 f pot of water, atoms in hot objects move faster than atoms in cold, atoms in the air typically move at the speed of sound. (300 m/s) Conservation of energy: there is no way to create new energy or destroy existing energy, we can only get more of a particular type of energy by converting some other store of energy, driving a car, dropping a ball, using a solar panel.
