State and explain two design features of a liquid-in-glass thermometer that are necessary to increase its sensitivity.
statement 1: _____________________________________________
explanation: _____________________________________________
statement 2: _____________________________________________
explanation: _____________________________________________
A rapid response to temperature change is essential for a thermometer used in dynamic environments. Explain why the heat capacity of the measuring junction of a thermocouple must be small to achieve this.
The measuring junction of a particular thermocouple has a heat capacity of 0.075 J/∘C0.075\text{ J}/^\circ\text{C}0.075 J/∘C.
Calculate the thermal energy required to increase the temperature of this junction from 18.0∘C18.0^\circ\text{C}18.0∘C to 258.0∘C258.0^\circ\text{C}258.0∘C.
energy = ______________
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.