Energy and transformation.

Energy and transformation.

1. Fundamental forces.

   • Study of nature, matter,energy.
     • Anything that is studied or analyzed must be measured
       • International system of units.
         • Lenght
           • Dimensions
             • Metre/ meter (m)
         • Mass
           • Amount of matter.
             • Kilograms (kg)
         • Time
           • Duration of events
             • Second (s)
         • Electric current
           • Flow of electric charge
             • Amphere (A)
         • Amount of substance
           • Number of elementary entities.
             • Mol (mol)
         • Temperature
           • Comparative measurement of heath an object
             • Kelvin (K)
         • Luminous intensity.
           • Power emitted by a light source with a direction
             • Candela (cd)
     • Order of magnitude.
       • The number of power of ten contained in a number
         • Prefixes
           • peta (k) - 15
             • Teta (T) - 12
               • Giga (G) 9
                 • Mega (M) - 6
                   • Kilo (K) - 3
                     • Deci (d) - -1
                       • centi (c)- -2
                         • mili (m)- -3
                           • Micro (M)- -6
                             • nano (n)- -9
                               • pico (p)- -12
                                 • femto (f)- -15

2. What is energy?

   • Is the capacity of a system to do work
     • Types of energy
       • There are 23 types of energy in total.
         • +Electric energy, luminous energy, mechanical energy, heat energy, wind energy, solar energy, nuclear energy, kinetic energy, potential energy, chemical energy, hydraulic power, sound energy, radiant energy, photovoltaic power, energy of reaction ionic energy, geothermal energy, wave power, electromagnetic energy, and some other
           • The 7 more importants are
             • Electrical energy
               • Is the energy created by electrons. All matter contains atoms that contain electrons. When electrons are force down a conductive path; the movement produces electricity.
             • Luminous energy
               • The radiant energy of electromagnetic waves in the visible portion of the electromagnetic spectrum.
             • Mechanical energy
               • Is the energy that is possessed by an object due to its motion or due to its position.
             • Solar energy
               • Solar energy is the technology used to harness the sun's energy and make it useable.
             • Nuclear energy
               • Is energy in the core (nucleus) of an atom. Is the enormous energy in the bonds that hold atoms together. It can be released from atoms into two ways: nuclear fusion and nuclear fission
             • Wind energy
               • Is the use of air flow through wind turbines to mechanically power generators for electricity.
             • Thermal energy
               • Is what we call energy that comes from the temperature of matter. The hotter the substance, the more its molecules vibrate, and therefore the higher its thermal energy.