Physics 30 June 01 Diploma Exam

numerical response 5 the voltage drop across one of

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Unformatted text preview: A. B. C. D. 5.76 W 8.64 W 14.4 W 144 W 11 Numerical Response 6. The magnitude of the force between two charged particles that are a fixed distance apart is 3.80 × 10– 4 N. If the distance between their centres is exactly doubled, then the magnitude of the force between the particles, expressed in scientific notation, is a.bc × 10– d N. The values of a, b, c, and d are _____ , _____ , _____ , and _____. (Record all four digits of your answer in the numerical-response section on the answer sheet.) 18. The electric field strength 2.0 × 10–10 m from an alpha particle is A. B. C. D. 7.2 N/C 14 N/C 3.4 × 1010 N/C 7.2 × 1010 N/C 12 19. If the source of Earth’s magnetic field were a bar magnet, then the best diagram to show this field would be 13 Use the following information to answer the next two questions. A Mass Spectrometer A particular lithium sample contains two isotopes. These isotopes are singly charged in an ion generation and acceleration chamber. Since individual atoms are ionized at different points in the acceleration chamber, their speeds vary when they enter the velocity selection chamber. In the velocity selection chamber, the electric field strength is 5.95 × 102 N/C and the magnetic field strength is 1.55 × 10–3 T. The velocity selection chamber allows ions of a certain speed to pass through undeflected. The beam of undeflected ions then enters the ion separation chamber where the magnetic field of 0.185 T splits the beam into two beams. Beam 1 curves through a radius of 0.131 m. E = 5.95 × 102 N/C B2 = 0.185 T Positive plate Beam 2 Electron beam B1 = 1.55 × 10–3 T Beam 1 Negative plate Sample Ion generation and acceleration chamber 20. Velocity selection chamber Ion separation chamber Ion detector and The speed of the undeflected ionized lithium ions, Li+, as they leave the velocity selection chamber is A. B. C. D. 4.25 × 104 m/s 3.84 × 105 m/s 8.63 × 106 m/s 7.22 × 107 m/s 14 Use your recorded answer from Multiple Choice 20 to answer Numerical Response 7.* Numerical Response 7. The mass of a lithium ion in beam 1, expressed in scientific notation, is b × 10–w kg. The value of b is __________. (Record your three-digit answer in the numerical-response section on the answer sheet.) *You can receive marks for this question even if the previous question was answered incorrectly. Use the following information to answer the next question. Bill notices that the picture on his television screen is distorted when a strong magnet is placed near it. Magnet Note: This distortion can be permanent. 21. This distortion occurs because of the magnetic force acting on the A. B. C. D. visible wavelengths of EMR television circuits moving electrons gamma radiation 15 Use the following information to answer the next two questions. Radio Telescopes Radio telescopes detect radio waves emitted by objects throughout the universe. They do not detect the visible light from stars and galaxies. The Dominion Radio Astrophysical Observatory (DRAO), located in Pe...
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