Friday, November 19, 2010

Test Nine!


  1. Thermal energy is related to temperature and heat because it makes up an object with the particles inside it.  The thermal energy of a material consists of the disordered motion of its atoms or molecules. Thermal energy can be transferred through materials or from one material to another by conduction (the collisions of atoms). If the material is fluid, convection currents transfer the thermal energy (convection). When thermal energy is transferred it is called heat. Temperature is a measure of the average kinetic energy of atoms and molecules in a material.
  2. An object made of a material with a higher heat capacity will take longer to get warm than one made with a lower-heat-capacity material (if the two are heated with the same power, say a microwave).
  3. The three forms are conduction, convection, and radiation.  Conduction is say when I touch a table, the heat molecules will transfer from my hand to the table, which will produce heat to the table.  Convection is when molecules within fluids go through a cycle and make motions.  Radiation is the process of energetic particles that move and travel through open area.
  4. 5 * 10 * 2180 = 209,000 Joules
  5. If I had the option to either build a fire or put up a tent, I would put up a tent (conduction).  I would do this because I would be in an inclosed area.  The atoms would be tightly packed, which would make you in an insulated area.  This would form heat for me to stay super, cozy warm!!!:)

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