IGCSE Sample Examination Paper PHYSICS PAPER 3 …physicslocker.com/physicslocker/igcse/Complete Physics Teachers... · IGCSE Sample Examination Paper PHYSICS PAPER 3 ... The questions
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The questions in this sample were taken from Cambridge IGCSE Physics 0625 Paper 3
1 Q1 June 2006 2 Q3 June 2007 3 Q2 November 2005 4 Q4 June 2007 5 Q5 November 2007 6 Q6 June 2007 7 Q7 June 2005 8 Q8 November 2007 9 Q11 June 200510 Q10 November 200711 Q11 June 2006
Fig. 4.1 shows a student’s attempt to estimate the specific latent heat of fusion of ice by adding ice at 4 0 8C to water at 20 8C. The water is stirred continuously as ice is slowly added until the temperature of the water is 0 8C and all the added ice has melted.
Fig. 4.1
a Three mass readings are taken. A description of the first reading is given.
Write down descriptions of the other two.
reading 1 the mass of the beaker 1 stirrer 1 thermometer
reading 2
reading 3 [2]
b Write down word equations which the student could use to find
i the heat lost by the water as it cools from 20 8C to 0 8C,
[1]
ii the heat gained by the melting ice.
[1]
c The student calculates that the water loses 12 800 J and that the mass of ice melted is 30 g.
Calculate a value for the specific latent heat of fusion of ice.
d Fig.9.2 shows the flexible wire made into a rigid rectangular coil and mounted on an axle.
Fig. 9.2
i Add to the diagram an arrangement that will allow current to be fed into the coil whilst allowing the coil to turn continuously. Label the parts you have added. [1]
ii Briefly explain how your arrangement works.
[2]
[Total: 8]
Fig. 10.1 shows an AND gate with two inputs A and B and one output.10
b An electrical thermometer in a greenhouse gives a low output if the temperature is too low.
A humidity sensor in the same greenhouse gives a high output if the humidity in the greenhouse is too high.
An alarm sounds when both the temperature is too low and the humidity is too high.
i Complete the diagram below to show how a NOT gate and an AND gate may be used to provide the required output to the alarm. [2]
ii On your diagram, use either ‘high’ or ‘low’ to indicate the level of the inputs and outputs of both gates when the alarm sounds. [2]
[Total: 6]
Fig. 11.1 shows a beam of radiation that contains 11 a-particles, b-particles and g-rays. The beam enters a very strong magnetic field shown in symbol form by N and S poles.