What is the temperature difference between the lower and upper fixed points of water on the Fahrenheit (∘F^{\circ}\text{F}∘F) temperature scale?
100 ∘F100\ ^{\circ}\text{F}100 ∘F
180 ∘F180\ ^{\circ}\text{F}180 ∘F
212 ∘F212\ ^{\circ}\text{F}212 ∘F
273 ∘F273\ ^{\circ}\text{F}273 ∘F
528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.