PHYSICSSTANDARD LEVELPAPER 1Friday 10 November 2000 (afternoon)45 minutesN00/430/S(1)INTERNATIONAL BACCALAUREATEBACCALAUR°AT INTERNATIONALBACHILLERATO INTERNACIONAL880-23516 pagesINSTRUCTIONS TO CANDIDATES!Do not open this examination paper until instructed to do so.!Answer all the questions.!For each question, choose the answer you consider to be the best and indicate your choice on theanswer sheet provided.
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1.The frequency of oscillation fof a mass msuspended from a vertical spring is given by12kfmπ=where kis the spring constant.Which oneof the following plots would produce a straight-line graph?A.fagainst mB.21against fmC.against fmD.against m1f2.The power Pdissipated in a resistor of resistance Rin which there is a current Iis given by2PIR=The uncertainty in the value of resistance of a particular resistor is !10% and the uncertainty in the valueof the current in the resistor is !3%. The best estimate for the uncertainty of the power dissipated isA.!6%.B.!9%.C.!16%.D.±19%.3.When a car is moving at a speed vin a straight line the total force opposing its motion is F. Theproduct Fvis a measure of theA. power developed by the car.B. rate of change of momentum of the car.C. work done by the car against the frictional forces.D. rate of change of kinetic energy of the car.± 2 ±N00/430/S(1)880-235