Monday, November 22, 2010

Test 9

1) Thermal energy is related to temperature and heat because the thermal energy in an object depends on the temperature of the object.

2) Some materials get hot more quickly than others because the specific heat, which is the amount of energy required to raise the temperature of 1 Kilogram of a material by 1 Kelvin, differs in every object.

3) The three forms of heat transfer are conduction, convection, and radiation. Conduction is when heat is transferred from one particle of matter to another without the movement of the matter. An example of this is a spoon in a pot of hot water. Convection is when heat is transferred by the movement of currents without a fluid. Radiation is the transfer of thermal energy by electromagnetic wave. Radiation doesn't require matter to transfer thermal energy. The sun's energy reaches earth via radiation.

4) 209,000 J

5) I would build a tent because air is a very good insulator so once you set up the tent and close every spot where cold air can get in, then the air inside will insulate the tent.

No comments:

Post a Comment