1. Liquids exhibit only _______ expansion.   superficial   linear   cubical   Hint Half-n-half Clue   2. A mass of 40 kg falls 90m. If all its potential energy is converted to heat and gravitational acceleration = 9.8 m/s2, then the heat gained is   35280 J   3600 J   392 J   882 J   Half-n-half Clue   3. The calorific value of a fuel is the quantity of heat produced when a unit _______ of it is burnt.   volume   weight   mass   Half-n-half Clue   4. Which loses the most heat in cooling to 10oC ?   a glass filled with boiling water   a swimming pool filled with water at 30oC   a kettle filled with water at 60oC   Half-n-half Clue   5. Heat is a form of _______.   expansion   energy   electricity   Half-n-half Clue   6. The SI unit of heat (thermal energy) is   Pascal   Joule   Newton   Watt   Half-n-half Clue   7. The heat produced on burning 3 kg of fuel oil which has a calorific value of 39800 kJ/kg is   119400 MJ   13.3 MJ   13266.7 MJ   119.4 MJ   Half-n-half Clue