Annual Examinations For Secondary Schools 2015 (Physics) Worksheets - Department For Curriculum Management Page 2
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12SECTION A
Each question carries 8 marks. This section carries 40 marks of the total marks for this paper.
1. Matthew and Elisa decide to find the density of seawater. They measured the mass of an empty
measuring cylinder and then poured an amount of seawater in the measuring cylinder and
measured the mass of the cylinder with water.
Figure 1
i) Calculate the mass of the seawater in the measuring cylinder.
________________________________________________________________________[2]
ii) From the diagram above, record the volume of seawater in the measuring cylinder
in cm
3
.
________________________________________________________________________[1]
iii) Calculate the density of seawater.
__________________________________________________________________________
________________________________________________________________________[2]
iv) Mention a precaution Elisa and Matthew must take when reading the volume of the
seawater to ensure an accurate result.
________________________________________________________________________[1]
Page 2 of 12
Physics – Form 3 Secondary – Track 2 – 2015
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