Physics 5054 · O Level · Thermal properties and temperature
Thermal properties and temperature — practice question
A student uses a thermometer to measure the temperature of hot water as it cools in a beaker. Explain why he carries out the following steps so that the readings are accurate.
(a)[1]
He ensures that the thermometer bulb does not touch the sides or the base of the beaker.
(b)[1]
He stirs the water before each reading.
(c)[1]
He reads the temperature by looking at the thermometer scale at eye level, at right angles to the scale.
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The sides/base could be at a different temperature” …