ESS262H1 Lecture Notes - Lecture 2: Saprolite, Regolith, Colloid
Document Summary
Energy is the capacity to do work, to move matter, to make things happen (many forms) The sum of the different kinds of energy in a system is internal energy of the system. All energy can be described as either: or a combination of these. Potential energy is energy stored in a system, and comes in diff. forms: chemical (food, nuclear, stored mechanical (hydro, gravitational. Work = force x distance = change in kinetic energy = kinetic energy final initial. Force = mass x acceleration: work-energy principle: the change in total internal energy of a system is equal to the work done on that system. Conservation and transformation: in a system of constant mass, energy cannot be created nor destroyed by changed: 2. Efficiency and entropy: all energy flows; changes from useful/concentrated, to less concentrated form (disordered: 3. Small amount of gamma rays (98%) & neutrions reaches earth.
