Physics 5054 · O Level · Physical quantities and measurement techniques
Physical quantities and measurement techniques — practice question
A student receives a box that contains ten similar plastic drinking straws, together with a $30\,\text{cm}$ ruler and two set-squares.
(a)[3]
Explain how the student can work out an average value for the external diameter of the straws with this apparatus. Include a diagram to show your method.
(b)[2]
Each straw contains an average volume of $4.0\,\text{cm}^3$ of water when full. Suggest a way in which this value could be tested.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Measure more than one diameter reading” …