paper 1 2000 hl

# paper 1 2000 hl - INTERNATIONAL BACCALAUREATE BACCALAURAT...

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PHYSICS HIGHER LEVEL PAPER 1 Friday 10 November 2000 (afternoon) 1 hour N00/430/H(1) INTERNATIONAL BACCALAUREATE BACCALAUR&AT INTERNATIONAL BACHILLERATO INTERNACIONAL 880-226 24 pages INSTRUCTIONS 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 the answer sheet provided.

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1. When an ideal gas in a thermally insulated chamber is compressed the volume V and pressure P are related by the equation constant PV γ = where γ is a constant. Which one of the following plots would produce a straight-line graph? A. P against 1 V B. log P against log V C. P against log V D. log P against V 2. The power P dissipated in a resistor of resistance R in which there is a current I is given by P = I R 2 The uncertainty in the value of resistance of a particular resistor is ! 10% and the uncertainty in the value of the current in the resistor is ! 3%. The best estimate for the uncertainty of the power dissipated is A. ! 6%. B. ! 9%. C. ! 16%. D. ± 19%. 3. When a car is moving at a speed v in a straight line the total force opposing its motion is F . The product Fv is a measure of the A. 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/H(1) 880-226
4. In the diagram a wooden block is resting on an inclined plane. The weight of the block is W and the normal reaction between the block and the plane is N and the frictional force acting on the block is F . f Angle θ is the maximum angle of the plane before the block starts to slide down the plane. The coefficient of static friction between the block and the plane is µ . wooden block W F N f Which one of the following relationships between W and N is correct? A. W = N B. W cos = N C. W sin = N D. W sin = N & 3 & N00/430/H(1) 880-226 Turn over

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5. The diagram shows a glider travelling on a friction-free linear air track. a pump air holes vehicle opaque card air from buffer buffer air track Which one of the following graphs best represents the variation of velocity with time as the glider bounces back and forth between the elastic buffers? velocity velocity velocity velocity time time time time Graph B Graph A Graph D Graph C & 4 & N00/430/H(1) 880-226
6. The diagrams show the direction and speed u of a ball before it strikes a vertical wall and its direction and speed v after striking the wall. wall before u wall after v The ball is in contact with the wall for a time t. The magnitude of the average force F exerted on the ball by the wall is given by A. . mu mv F t = B. . () Fm u m v t =− C. . mu mv F t + = D. . u m v t =+∆ 7. A particle of mass m moves with constant speed v in a circle of radius r . The work done on the particle by the centripetal force in one complete revolution is A. .

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paper 1 2000 hl - INTERNATIONAL BACCALAUREATE BACCALAURAT...

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