Physics 5054/31 — October/November 2020

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

questions

marks

120

minutes

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

Q15MObservations and MeasurementsExperimental ContextsPlanning Experiments and InvestigationsAnalysis, Conclusions and EvaluationFree sample

In this experiment you will investigate the images in mirrors.

You are provided with:

a pair of mirrors joined together
a small piece of modelling clay
a sheet of paper
a protractor.

Place the piece of modelling clay between the mirrors.

Adjust the angle between the mirrors until you see the object plus four reflected images of the object.

The images must be equally spaced as shown in Fig. 1.1.

Fig. 1.1

(a)

Measure the angle $\theta$ between the mirrors.

angle $\theta$ = ______ $^\circ$

(b)

Describe how to investigate the relationship between the number of reflected images and the angle $\theta$ .

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3 more questions

Q2Use of Techniques, Apparatus and Materials · Observations and Measurements · Analysis, Conclusions and Evaluation · Experimental Contexts5M
Q3Observations and Measurements · Experimental Contexts · Analysis, Conclusions and Evaluation · Use of Techniques, Apparatus and Materials5M
Q4Experimental Contexts · Observations and Measurements · Analysis, Conclusions and Evaluation · Use of Techniques, Apparatus and Materials · Planning Experiments and Investigations15M

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