Physics

Physics

Energy
1. Nine types of energy
  1. Heat
    1. Heat Transfer
      1. Conduction
        Vibrating particles pass on the heat energy
      2. Convection
        Substance becomes less dense as heated particles move
      3. Radiation
        Heat is transferred in waves
  2. LIght
  3. Sound
  4. Nuclear
  5. Gravitational Potential
  6. Electric
  7. Chemical Potential
  8. Elastic Potential
2. The Law of Conservation of Energy
  1. Energy cannot be created or destroyed only transferred from one form to another.
3. Equations
  1. Efficiency
    1. Useful Energy / Total Energy In
  2. Weight
    1. Mass X Gravitational Constant (10)
  3. Work Done
    1. Force X Distance
  4. Power
    1. Work Done / Time taken
Solids, Liquids and Gases
1. Equations
  1. Density
    1. Mass / Volume
  2. Pressure
    1. Force / Area
  3. Pressure Difference
    1. h X p x g
      1. h= height difference
      2. p= density
      3. g= gravitational constant (10)
2. Solid to a liquid is melting
3. Liquid to a solid is freezing
4. Liquid to a gas is evaporation
  1. Brownian motion is evidence of gas particles moving
5. Gas to a liquid is condensing
6. 0K = -273 C
Waves
1. The Electromagnetic Spectrum
  1. Radio Waves
  2. Microwaves
  3. Infrared Radiation
  4. Visible Light
  5. Ultra Violet Light
  6. Gamma Rays
  7. X- Rays
2. Equations
  1. Period
    1. 1 / Frequency
  2. Speed
    1. Frequency X Wavelength
3. Reflection
  1. Angle of Incidence = Angle of Reflection
4. Refraction
  1. Light Changes Medium
  2. Going in angle of incidence bends towards norml
    1. Opposite going out

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	Created by EilidhQuinn239 almost 9 years ago