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5054/32

Physics 5054/32 — May/June 2013

Cambridge O-Level · Practical Test · worked solutions for every part, with the mark scheme

4
questions
30
marks
120
minutes

Topics Observations and Measurements · Experimental Contexts · Use of Techniques, Apparatus and Materials · Analysis, Conclusions and Evaluation

Q15MObservations and MeasurementsUse of Techniques, Apparatus and MaterialsAnalysis, Conclusions and EvaluationExperimental ContextsFree sample

In this experiment, you will make measurements on some glass slides in order to determine the density of the glass.

You have been provided with

  • a stack of glass slides,
  • a single glass slide,
  • a 30 cm ruler,
  • a card which gives information about the single slide.

You also have access to a top-pan balance.

Do not remove any slides from the stack.

(a)

Fig. 1.1 shows the stack of slides. Determine accurate values for the length ll, the width ww and the height hh of the stack of slides.

ll = ______
ww = ______
hh = ______

2M
(b)

(i) Measure the mass MM of the stack of slides.

MM = ______

(ii) Calculate the density ρ\rho of the stack of slides using the formula

ρ=Mlwh\rho = \frac{M}{lwh}

ρ\rho = ______

1M
(c)

The thickness tt and the mass mm of the single slide are written on the card.

(i)

Write down the values of tt and mm that are on the card.

tt = ______
mm = ______

(ii)

Estimate the number of slides in the stack by two methods.

  1. ______
  2. ______
1M
(iii)

Comment on the values obtained in (ii). Explain your answer.

1M

The rest of this paper

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