1984_physB_mc

# 1984_physB_mc - 1984 AP Physics B Multiple Choice Exam 1984...

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1984 AP Physics B Multiple Choice Exam Copyright © 1976 to 1998 by Educational Testing Service, Princeton, NJ 08541. All rights reserved. For face-to-face teaching purposes. Classroom teachers are permitted to reproduce the questions. Made available for convenience, accessibility and adaptation purposes by Ron Esman, Abilene High School, 2800 N. 6 th Street, Abilene, Texas 79603 1984 B Physics Multiple-Choice Directions: Each of the questions or incomplete statements below is followed by five suggested answers or completions. Select the one that is best in each case and then blacken the corresponding space on the answer sheet. 1. If the mass of a simple pendulum is doubled but its length remains constant, its period is multiplied by a factor of (A) 1 2 (B) 1 2 (C) 1 (D) 2 (E) 2 2. A railroad flatcar of mass 2,000 kilograms rolls to the right at 10 meters per second and collides with a flatcar of mass 3,000 kilograms that is rolling to the left at 5 meters per second. The flatcars couple together. Their speed after the collision is (A) 1m/s (B) 2.5m/s (C) 5 m/s (D) 7 m/s (E) 7.5m/s 3. The graph above shows the velocity versus time for an object moving in a straight line. At what time after time = 0 does the abject again pass through its initial position? (A) Between O and 1 s (B) 1 s (C) Between 1 and 2 s (D) 2 s (E) Between 2 and 3 s 4. Which of the following is true for a system consisting of a mass oscillating on the end of an ideal spring? (A) The kinetic and potential energies are equal at all times. (B) The kinetic and potential energies are both constant. (C) The maximum potential energy is achieved when the mass passes through its equilibrium position. (D) The maximum kinetic energy and maximum potential energy are equal, but occur at different times. (E) The maximum kinetic energy occurs at maximum displacement of the mass from its equilibrium position. 5. A hall of mass m is suspended from two strings of unequal length as shown above. The tensions T 1 and T 2 in the strings must satisfy which of the following relations? (A) T 1 = T 2 (B) T 1 > T 2 (C) T 1 < T 2 (D) T 1 + T 2 =mg (E) T 1 - T 2 =mg Questions 6-7 A 2-kilogram block slides down a 30 incline as shown above with an acceleration of 2 meters per second squared. 6. Which of the following diagrams best represents the gravitational force W , the frictional force f , and the normal force N that act on the block?

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1984 AP Physics B Multiple Choice Exam Copyright © 1976 to 1998 by Educational Testing Service, Princeton, NJ 08541. All rights reserved. For face-to-face teaching purposes. Classroom teachers are permitted to reproduce the questions. Made available for convenience, accessibility and adaptation purposes by Ron Esman, Abilene High School, 2800 N. 6 th Street, Abilene, Texas 79603 7. The magnitude of the frictional force along the plane is most nearly (A) 2.5 N (B) 5 N (C) 6 N (D) 10 N (E) 16 N 8. When a person stands on a rotating merry- go-round, the frictional force exerted on the
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1984_physB_mc - 1984 AP Physics B Multiple Choice Exam 1984...

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