Rovided byobject had one ben lui a constant

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Unformatted text preview: ded byobject had One Ben Lui a constant acceleration during its motion, while the other's acceleration varied with time. The area under both v-t graphs from t = 0 to t = T is the same. Which of the following quantities is the same during that time interval? A. average position B. average velocity C. average acceleration D. total distance E. average speed 8. The slope of the curve of a position vs. time graph for a particle's motion gives A. the particle's speed. B. the particle's velocity. C. the particle's acceleration. D. the particle's displacement. E. Not covered in the assigned reading. When velocity is in the positive direction and acceleration is in the negative direction, what happens to the object’s motion? A. The object slows down. B. The object speeds up. C. Nothing changes about its motion. D. The object stops and stays at rest. E. Not covered in the assigned reading. The speedometer of a car moving to the north reads 60 mph. The speedometer of another car moving to the south reads 60 mph. The two cars have the same _________________. A. speed B. velocity C. distance D. direction E. displacement 9. 10. 7 Physics Honors P 3 Quiz Chapterrovided by Ben Lui 1. If the acceleration of an object varies in magnitude and is always directed perpendicular to its velocity, A. the object is speeding up. B. the object is slowing down. C. the object is turning. D. this situation is impossible. E. More than one of these is correct. If you want to swim across a river in the least amount of time, you should try to swim A. straight across the river. B. slightly upstream. C. slightly downstream. D. in any direction; it doesn't matter. E. directly downstream. Suppose that several projectiles are fired. Which one will be in the air longest? A. The one with the farthest range B. The one with the highest maximum elevation C. The one with the greatest initial velocity. D. All of the preceding choices are correct. E. None of the preceding choices are correct. At approximately what angle should a water-gun be aimed in order for the water to land with the greatest horizontal range? A. 0o B. 30o C. 45o D. 90o E. 60o A pilot drops a bomb from a plane flying horizontally at constant speed. Ignoring air resistance, when the bomb hits the ground, the horizontal location of the plane will A. be behind the bomb. B. the same as that of the bomb. C. be in front of the bomb. D. depend on the speed of the plane. E. Not covered in the assigned reading. A stone is thrown horizontally from the top of a tower at the same instant that a ball is dropped vertically. Which object is traveling faster when it hits the level ground below? A. There is not enough information to answer. B. The stone C. The ball D. Neither; they move at the same speed. E. Not covered in the assigned reading. 2. 3. 4. 5. 6. 8 7. P speed of v A ball is thrown at an angle θ above the horizontal with an initial rovided by Ben Luio. The speed of the ball when it reaches its maximum altitude is A. zero B. vo sin θ C. vo cos θ D. 2 vo E. None of these. 8. A bullet is fired horizontally, and at the same instant a second bullet is dropped from the same height. Ignore air resistance and assume that the surface of the earth is flat. Compare the times of fall of the two bullets. A. The fired bullet hits first. B. The dropped bullet hits first. C. They hit at the same time. D. Cannot tell without more information. E. Not covered in the assigned reading. The horizontal component of a projectile's acceleration A. is zero. B. remains constant. C. gets bigger and bigger. D. gets smaller and smaller. E. Not covered in the assigned reading. A man at the top of a tall building is attempting to shoot a stationary target on the ground with his gun. Which of the following is true? A. He should aim his gun directly at the target. B. Where he should aim his gun does not depend on the height of the building he's in. C. He should aim his gun above the target. D. He should aim his gun below the target. E. Not covered in the assigned reading. 9. 10. 9...
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This note was uploaded on 08/29/2010 for the course PHYS 38234 taught by Professor Ramesh during the Spring '09 term at University of California, Berkeley.

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