Physics HL P1

# Physics HL P1 - c 1 hour IB DIPLOMA PROGRAMME PROGRAMME DU...

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PHYSICS HIGHER LEVEL PAPER 1 Monday 19 May 2003 (afternoon) 1 hour M03/430/H(1)+ IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI c 223-170 22 pages INSTRUCTIONS TO CANDIDATES y Do not open this examination paper until instructed to do so. y Answer all the questions. y 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. Natalie measures the mass and speed of a glider. The percentage uncertainty in her measurement of the mass is 3 % and in the measurement of the speed is 10 %. Her calculated value of the kinetic energy of the glider will have an uncertainty of A. 30 %. B. 23 %. C. 13 %. D. 10 %. 2. The graph shows the variation with time t of the velocity v of an object. v t Which one of the following graphs best represents the variation with time t of the acceleration a of the object? B. a t 0 0 A. a t 0 0 D. a t 0 0 C. a t 0 0 – 2 – M03/430/H(1)+ 223-170
3. A rocket is fired vertically. At its highest point, it explodes. Which one of the following describes what happens to its total momentum and total kinetic energy as a result of the explosion? unchanged increased D. increased increased C. unchanged unchanged B. increased unchanged A. Total kinetic energy Total momentum 4. Which one of the following units is a unit of energy? A. eV B. 1 Ws C. 1 Wm D. 1 Nms 5. Two satellites of equal mass, and , orbit the Earth. is orbiting at a distance r from the Earth’s 1 S 2 S 1 S centre at speed v . orbits at a distance 2 r from the Earth’s centre at speed . The ratio of the 2 S 2 v centripetal force on to the centripetal force on is 1 S 2 S A. . 1 8 B. . 1 4 C. 4. D. 8. – 3 – M03/430/H(1)+ 223-170 Turn over

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6. A block is at rest on a rough plane inclined at an angle ± relatively to the horizontal. F ± The angle ± is slowly reduced. Which one of the following correctly describes the changes, if any, in the frictional force F and the coefficient of static friction between the block and the plane? constant increases D. increases increases C. constant decreases B. increases decreases A. Coefficient of static friction Frictional force F 7. A powered spaceship is moving directly away from a planet as shown below. planet P Spaceship At point P the motors of the spaceship are switched off but the spaceship remains under the influence of the planet. Which one of the following graphs best represents the variation with time t of the velocity v of the spaceship after it passes point P? B. v t 0 0 A. v t 0 0 D. v t 0 0 C. v t 0 0 – 4 – M03/430/H(1)+ 223-170
8. Which one of the following graphs best represents the variation of the kinetic energy, KE, and of the gravitational potential energy, GPE, of an orbiting satellite with its distance r from the centre of the Earth? B. 0 0 Energy r KE GPE A. 0 0 Energy r KE GPE D. 0 0 Energy r KE GPE C. 0 0

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## This note was uploaded on 09/30/2011 for the course CHEM 102 taught by Professor Tina during the Spring '11 term at Global.

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Physics HL P1 - c 1 hour IB DIPLOMA PROGRAMME PROGRAMME DU...

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