Physics Final Exam Questions & Answers

Physics Final Exam Questions & Answers A 10-N falling object encounters 4 N of air resistance. The net force on the object is 6 N. 4 N. 0 N. 10 N. none of the above - CORRECT ANSWER- 6 N A 1000-kg car and a 2000-kg car are hoisted to the same height. Raising the more massive car requires more than four times as much work. less work. as much work. twice as much work. four times as much work. - CORRECT ANSWER- twice as much work A 1000-kg car and a 2000-kg car are hoisted to the same height. Raising the more massive car requires - CORRECT ANSWER- twice as much work A 101-MHz radio wave has vibrations per second of more than 101,000,000. less than 101,000,000. 101,000,000 - CORRECT ANSWER- 101,000,000 A 101-MHz radio wave has vibrations per second of - CORRECT ANSWER- 101,000,000 A 1056-hertz tuning fork is struck at the same time as a note on the piano and you hear 2 beats/second. You tighten the piano string very slightly and then hear 3 beats/second. What is the frequency of the piano string? 1059 hertz 1058 hertz 1054 hertz 1056 hertz 1053 hertz - CORRECT ANSWER- 1059 hertz A 300-kg bear grasping a vertical tree slides down at constant velocity. The friction force between the tree and the bear is 3000 N. more than 3000 N. 30 N. 300 N. - CORRECT ANSWER- 3000 N A 60-W and a 100-W light bulb are connected in series to a 120-V outlet. Which bulb draws more current? 100-W bulb 60-W bulb both the same - CORRECT ANSWER- both the same A bag of groceries that has a mass of 10 kilograms weighs about 100 N. 1000 N. 1 N. 10 N. greater than 1000 N. - CORRECT ANSWER- 100 N A ball rolling down an incline has its maximum potential energy at the top. the bottom. halfway down. a quarter of the way down. - CORRECT ANSWER- the top A ball rolling down an incline has its maximum potential energy at - CORRECT ANSWER- the top A balloon will stick to a wooden wall if the balloon is charged positively