A continuous stream of water falls from a height of 150 m into a pool. Assume that all the gravitational potential energy of the water is converted into thermal energy within the water upon impact and that no energy is transferred to the surroundings. The specific heat capacity of water is 4200 J kg-1 K-1 and the acceleration due to gravity is g=9.81 m s−2g = 9.81\text{ m s}^{-2}g=9.81 m s−2. What is the increase in temperature of the water?
0.015 K0.015\text{ K}0.015 K
0.15 K0.15\text{ K}0.15 K
0.35 K0.35\text{ K}0.35 K
3.5 K3.5\text{ K}3.5 K
84 exam-style questions on AQA A Level Physics Force, energy and momentum, covering Scalars and vectors, Moments, Motion along a straight line, Projectile motion, Newton's laws of motion, Momentum, Work, energy and power, and Conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.