1. It has been a hot summer, so when you arrive at a lake, you decide to go for a swim even though it is nighttime. The water is cold! The next day, you go swimming again during the hottest part of the day, and even though the air is warmer the water is still almost as cold. Why?
(a) Water is fairly dense compared with many other liquids.
(b)Water remains in a liquid state for a wide range of temperatures.
(c) Water has a high bulk modulus.
(d)Water has a high specific heat.
2. Two equal-mass liquids, initially at the same temperature, are heated for the same time over the same stove. You measure the temperatures and find that one liquid has a higher temperature than the other. Which liquid has the higher specific heat?
(a) The cooler one.
(b) The hotter one.
(c) Both are the same.