1. The following are four possible graphs of a quantity Y plotted against another quantity X. Y Y Y Y X A B X C X D X Which graph best represents Y when it is the kinetic…

1. Three identical resistors are connected across a potential difference V so that one of them is in parallel with the other two which are connected in series. The power…

1. Two wires made of the same material but of different lengths and diameters are joined end to end and used to support a vertical load. If the weight of each wire is neglected,…

1. The diagram below shows part of a molecule of deoxyribonucleic acid (DNA). C B D A (a) Name A, B, C and D. A ................................................................................................................................…

1. The diagram shows a lever with two arms of equal length and with a 30 kg mass at one end. The force F is just strong enough to raise the 30 kg mass off the ground. 30…

Surname Centre No. Candidate No. Paper Reference(s) Initial(s) Paper Reference Signature 6 6 7 7 6677/01 0 1 Examiner’s use only Edexcel GCE Mechanics M1 Advanced/Advanced…

Paper Reference(s) 6689/01 Edexcel GCE Decision Mathematics D1 Advanced/Advanced Subsidiary Friday 20 January 2012 – Afternoon Time: 1 hour 30 minutes Materials required…

1. A child is playing on a swing. The graph shows how the displacement of the child varies with time. 2 1 Time/ s 0 –1 –2 Displacement / m The maximum velocity, in m…

Centre No. Candidate No. Paper Reference(s) Paper Reference Surname Initial(s) 4 3 2 5 4325/2H 2 H Signature Examiner’s use only London Examinations IGCSE Biology Paper…

Surname Centre No. Candidate No. Paper Reference(s) Initial(s) Paper Reference Signature 6 6 6 6 6666/01 0 1 Examiner’s use only Edexcel GCE Core Mathematics C4 Advanced…