K.C.S.E Physics Q & A - MODEL 2008PP1QN06&7

K.C.S.E Physics Q & A - MODEL 2008PP1QN06&7

 Fig. 3 shows a hot water bath with metal rods inserted through one of its sides. Some wax is fixed at the end of each rod. Use this information to answer questions 6 and 7.

​What property of metals could be tested using this set-up? 
Besides the length of the rods that is kept constant, what else should be kept constant when comparing the property for the different metal rods?

answers

• Heat conductivity/ rates of conduction/ thermal conductivity (NB: If heat conduction no mark)
•  X sectional area/diameter/thickness/radius