2.2.2. Specific heat capacity
A subsection of Physics, 0625, through 2. Thermal physics
Listing 10 of 149 questions
A scientist finds that the temperature of the water at the bottom of waterfalls is greater than the temperature of the water at the tops of those waterfalls. State the type of energy that falling water has because of its motion. In one waterfall, the water falls 300 m. Calculate the decrease in the gravitational potential energy (g.p.e.) of 1.0 kg of water as it falls through this distance. decrease in g.p.e. = Assume that the increase in internal energy of the 1.0 kg of water is equal to its decrease in g.p.e. Calculate the rise in temperature of the water. The specific heat capacity of water is 4200 J / (kg °C). rise in temperature = Suggest a reason why the actual increase in temperature of the water is less than the value calculated in . State why the thermometer used to measure the temperature of the water in the scientist’s experiment required a high sensitivity.
0625_m15_qp_32
THEORY
2015
Paper 3, Variant 2
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