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Lesson 1 thermal energy
 

Lesson 1 thermal energy

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    Lesson 1 thermal energy Lesson 1 thermal energy Presentation Transcript

    • Thermal Energy
      • Lesson 1
      • How is thermal energy transferred
      • Measure of kinetic energy of molecules
      • Thermometer
      • Fahrenheit
      • Celsius
      • Kelvin
      TEMPERATURE
      • Total kinetic and potential energy in a substance.
      • Thermal energy determines how warm a substance feels.
      • Warm water has more thermal energy than cool water.
      Thermal Energy
      • Thermal energy always moves from warmer to cooler objects.
      • Heat is the result of molecules vibrating quickly.
      • Heat is moving energy.
      HEAT
      • The transfer of heat by direct contact between objects or particles.
      • During conduction the particles in substances do not move, energy is passed as the particles vibrate and bump against one another.
      Conduction
      • Heat transferred through space as waves
      • EXAMPLE: The sun’s rays causing a sunburn.
      Radiation
      • Heat transferred by the movement of molecules within a substance.
      • Movement occurs from warmer areas to cooler areas.
      Convection
      • The movement of a substance that is caused by differences in temperature and density.
      • EXAMPLES: wind boiling water
      • NATURE WANTS
      • EVERYTHING TO BALANCE ! !
      Convection Current
      • Conductors are materials that transfer heat easily.
      • Examples: metals like copper and gold
      Conductors
      • An insulator is a material that does not transfer heat easily.
      • Examples:
      • liquids and gases
      • A jacket
      Insulators