Physics Fall Practice Final Exam 25 Questions Time
- Slides: 27
Physics Fall Practice Final Exam 25 Questions Time = Less than 30 minutes
Fall Final Exam Practice (1: 30 minutes) 1. What is the equation for the graph below? B. C. D. y = 0. 6 m/s(x) + 1. 0 m/s v = 0. 5 m/s 2(t) + 1. 0 m/s X = 0. 6 m/s(t) + 1. 0 m v = 2 m/s(t) + 1. 0 m 8 V (m/s) A. 10 6 4 2 2 4 6 t (s) 8 10
Fall Final Exam Practice (30 seconds) 2. At 6 seconds, which object is going slower? 10 8 B. C. D. Object A Object B They are equal Can’t tell B x (m) A. 6 4 A 2 2 4 t (s) 6 8 10
Fall Final Exam Practice (30 seconds) 3. When change in position is represented as a vector. . A. The direction of the arrow shows the direction of displacement B. The length of the arrow represents the distance C. The length of the arrow is drawn to scale D. All of the above E. None of the above
Fall Final Exam Practice (30 seconds) 4. In the picture to the right, the boy and wagon slowly increase in speed. You can assume A. The normal force is equal to the weight B. The frictional force and the Fx by the boy are equal C. The net force is not equal to zero D. There is not enough info present.
Fall Final Exam Practice (30 seconds) 5. In the picture to the right, you can say. . . A. The tension in each string is 100 N B. The tension in each string can’t be determined C. Tx for each rope is equal to ½ the weight of the box D. Ty for each rope is equal to ¼ the weight of the box 36 10 kg
Fall Final Exam Practice (2 minutes) 6. An airplane has 2 km to slow down to get to a landing speed. The plane is traveling at 200 m/s and slows at rate of 5 m/s 2, what is the plane’s final velocity? A. 99. 90 m/s B. 244. 95 m/s C. 8. 94 m/s D. 141. 42 m/s
Fall Final Exam Practice (1: 30 minutes) 7. What is the normal force on the 5 kg car? A. B. C. D. 43. 3 N 4. 33 N 2. 5 N 25 N 30
Fall Final Exam Practice ( 45 seconds) 8. Using the Law of Universal Gravitation, if the distance between two objects is cut in ¼, the force between the objects is A. the same B. doubled C. 4 times as great D. 16 times as great
Fall Final Exam Practice (45 seconds) 9. Using the Law of Universal Gravitation, if the mass between two objects is cut in ½, the force between the objects is A. the same B. half C. 1/4 as great D. 1/16 as great
Fall Final Exam Practice (30 seconds) 10. The man pushes on the car with a force of 50 N as it accelerates down the hill. What is the magnitude of the force the car exerts on the man? A. Less than 50 N B. 50 N C. More than 50 N D. it’s not possible to tell
Fall Final Exam Practice (1 minute) 11. What is the x component of the vector? 40 A. -30 N B. -23 N C. -19 N D. -15 N 30 N
Fall Final Exam Practice (30 seconds) 12. What is the relationship between the x axis data and the y axis data if the line on a graph is a horizontal line? A. y α x y B. y α 1/x C. y 2 α x D. no relationship x
Fall Final Exam Practice (45 seconds) 13. A ball is thrown straight up into the air at 40 m/s, when is the speed of the ball 15 m/s? A. at the end of the 2 nd second B. at some time between the 2 nd and 3 rd second C. at the end of the 4 th second D. there isn’t enough info to answer
Fall Final Exam Practice (2: 30 minutes) 14. A rock is kicked off of a 100 m high cliff at 15 m/s. How far from the cliff’s edge will the rock land? A. 67 m B. 4. 5 m C. 6. 7 m D. 300 m
Fall Final Exam Practice (45 seconds) 15. How much does a 25 kg rock weigh on Earth? On the moon, if the acceleration due to gravity is 1. 62 m/s 2? A. ± 25 N and ± 1. 62 N B. ± 250 N and ± 16. 2 N C. ± 250 N and ± 40. 5 N D. ± 25 N and ± 4. 05 N
Fall Final Exam Practice (45 seconds) 16. Using Newton’s 2 nd Law, what would happen to an object’s acceleration if the mass of that object was tripled? A. 1/9 th as great B. 9 times as great C. 1/3 rd as great D. 3 times as great
Fall Final Exam Practice (3: 00 minutes) 17. Riding your 450 kg ATV (includes your weight), you hit the gas and get up to 50 m/s in 11 seconds. What is the average net force on you and the ATV? A. 2, 045 N B. 20, 454 N C. 4, 500 N D. 45, 000 N
Fall Final Exam Practice (1: 30 minutes) 18. An everyday average car (friction) is driving up a hill at a constant velocity. Pick the force diagram. A B Fn Froad Ff Fw Ff 30 C Fn Froad D Ff Fn Froad Fw Ff Fw Fw
Fall Final Exam Practice (2 minutes) 19. An orange is dropped out of a car going 60 m/s. If it takes the orange 0. 8 seconds to hit the ground, what was the dropping height? A. 48 m B. 3. 2 m C. 0. 8 m D. 0. 1 m
Fall Final Exam Practice (1 minute) 20. A soccer ball is kicked at 5 m/s at an angle of 30 degrees above the horizontal, what is the acceleration of the ball at the top of its path? A. ± 10 m/s 2 B. 0 m/s 2 C. ± 2. 5 m/s 2 D. ± 4. 3 m/s 2
Fall Final Exam Practice (2: 30 minutes) 21. What does a scale read for a 50 kg person in an elevator that is accelerating at 3 m/s 2 down? A. ± 100 N B. ± 150 N C. ± 350 N D. ± 500 N
Fall Final Exam Practice (1 minute) 22. Pick the diagram that shows the force exerted on the box by the table A 0 N C F = 10 N 100 N 10 kg B 10 N D 90 N
Fall Final Exam Practice (45 seconds) 23. The constant force from object B pulls A on the frictionless table. Which describes the motion from point 1 to 2? A. Accelerates constantly B. Moves at a constant speed C. Slows down gradually D. speeds up for a bit then moves at a constant speed 1 2
Fall Final Exam Practice (30 seconds) 24. At point 2, block B is resting on the ground. What is the motion of block A? A. Accelerates constantly B. Moves at a constant speed C. Slows down gradually D. speeds up for a bit then moves at a constant speed 1 2
Fall Final Exam Practice (45 seconds) 25. Which of the following forces act on object A at point 1? A. normal force & weight of A B. weight of B C. normal force, weight of A, & tension D. normal force, weight of A, weight of B, friction 1 2
Fall Final Exam Practice Answers 1. B 2. A 3. D 4. C 5. D 6. D 7. A 8. D 9. B 10. B 11. B 12. D 13. B 14. A 15. C 16. C 17. A 18. D 19. B 20. A 21. C 22. D 23. A 24. B 25. C
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