An experimenter heats a sample of Liquid A in a beaker using a constant power heater.
The temperature of Liquid A rises by 12 ∘C12\,^\circ\text{C}12∘C in time ttt.
She then heats the same volume of Liquid B in an identical beaker using the same heater.
The specific heat capacity of Liquid A is 2.0 times that of Liquid B, and Liquid A is 1.25 times denser than Liquid B.
What is the time required for the temperature of Liquid B to rise by 12 ∘C12\,^\circ\text{C}12∘C?
0.40t0.40t0.40t
0.63t0.63t0.63t
1.6t1.6t1.6t
2.5t2.5t2.5t
119 exam-style questions on CIE IGCSE Physics 2.2.2a Internal energy and temperature. Each one has a worked solution and a mark scheme showing where the marks go.