Physics 5054/42 — October/November 2016
Cambridge O-Level · Alternative to Practical · worked solutions for every part, with the mark scheme
Topics Experimental Contexts · Analysis, Conclusions and Evaluation · Observations and Measurements · Use of Techniques, Apparatus and Materials
A student is to determine the density of a liquid.
She pours the liquid into a measuring cylinder, as shown in Fig. 1.1.
State the volume of the liquid in the measuring cylinder.
= ______
Her friend also measures the same volume of liquid in the measuring cylinder and she records a larger volume than the correct value in (a)(i).
Suggest how she makes this error.
State another piece of apparatus that the student needs in order to determine the density of the liquid.
Explain in detail how she uses her apparatus to determine the density.
Her friend also determines the density using her incorrect value for the volume. State how her density value compares to that of the student.
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