1. If the temperature of a body is _______ that of its surroundings, it will lose heat to its surroundings.   equal to   lower than   higher than   Hint Half-n-half Clue   2. 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 4 g of water by 7oC?   29.4 J   117.6 J   28.0 J   16.8 J   Half-n-half Clue   3. Water at 30oC is mixed with an equal mass of water at 90oC. If there are no heat losses to the surroundings, then what is the final temperature of the water mixture ?   60.0oC   120.0oC   90oC   30oC   Half-n-half Clue   4. The method of mixtures assumes that the heat lost by the hot body equals   the heat gained by the cold body   the heat gained by the hot body   the heat lost by the cold body   Half-n-half Clue   5. Given that 1 cal (about 4.2 J) of heat is lost by 1 g of water in cooling by 1oC, how much heat is lost by 4 g of water in cooling from 85oC to 15oC ?   16.8 J   294.0 J   1176.0 J   280.0 J   Half-n-half Clue   6. Liquids exhibit only _______ expansion.   linear   cubical   superficial   Half-n-half Clue   7. _______ requires no medium.   Radiation   Conduction   Convection   Half-n-half Clue