1. Heat energy travels through _______ by conduction only.   gases   liquids   solids   Hint Half-n-half Clue   2. Liquids exhibit only _______ expansion.   superficial   linear   cubical   Half-n-half Clue   3. Given that 1 cal (about 4.2 J) of heat is required to raise the temperature of 1 g of water by 1oC, how much heat is required to raise the temperature of 3 g of water by 7oC?   29.4 J   12.6 J   21.0 J   88.2 J   Half-n-half Clue   4. The heat produced on burning 3 kg of fuel oil which has a calorific value of 39800 kJ/kg is   13.3 MJ   119400 MJ   119.4 MJ   13266.7 MJ   Half-n-half Clue   5. 1 Joule = _______ ergs   107   4.214   105   4.184   Half-n-half Clue   6. Given that 1 cal (about 4.2 J) of heat is required to raise the temperature of 1 g of water by 1oC, what will be the final temperature when 50.0 calories of heat are added to 4 g of water at 25oC ?   12.5oC   37.5oC   22.0oC   28.0oC   Half-n-half Clue   7. Different gases have the same rate of expansion for the same rise in temperature.   True   False