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# Physics 151 exam one study guide PHYC 151 001

Marketplace > University of New Mexico > Physics 2 > PHYC 151 001 > Physics 151 exam one study guide
Breanab
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GPA 4.1

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This is a practice exam of all the in class problems plus a few from the book and mastering physics.
COURSE
General Physics
PROF.
Dr. Dave Cardimona
TYPE
Study Guide
PAGES
6
WORDS
CONCEPTS
Physics, unm
KARMA
50 ?

## Popular in Physics 2

This 6 page Study Guide was uploaded by Breanab on Sunday February 14, 2016. The Study Guide belongs to PHYC 151 001 at University of New Mexico taught by Dr. Dave Cardimona in Winter 2016. Since its upload, it has received 44 views. For similar materials see General Physics in Physics 2 at University of New Mexico.

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Date Created: 02/14/16
Physics 151 Sample Test #1 (Chapters 1-4) g = 9.8 m/s 2 1. A ball is thrown straight up with an initial speed of 4.9 m/s. It is in the air for 1 second. With what speed does it hit your hand (held in the position at which it released the ball)? a. 9.8 m/s b. 4.9 m/s c. 2.45 m/s d. 0 m/s 2. A ball is thrown straight up with an initial speed of 4.9 m/s. It is in the air for 1 second. What is its acceleration on the way up? 2 a. 9.8 m/s u2 b. 9.8 m/s down c. 4.9 m/s up 2 d. 4.9 m/s down e. 0 m/s 2 3. A ball is thrown straight up with an initial speed of 4.9 m/s. It is in the air for 1 second. What is its acceleration on the way down? 2 a. 9.8 m/s up b. 9.8 m/s down c. 4.9 m/s up 2 d. 4.9 m/s down e. 0 m/s 2 4. A ball is thrown straight up with an initial speed of 4.9 m/s. It is in the air for 1 second. What is its acceleration at the top? 2 a. 9.8 m/s up b. 9.8 m/s down 2 c. 4.9 m/s u2 d. 4.9 m/s down e. 0 m/s 2 5. A ball is thrown straight up with an initial speed of 4.9 m/s. It is in the air for 1 second. How long did it take to get to the top? a. 9.8 seconds b. 4.9 seconds c. 2 seconds d. 1 second e. ½ second 6. A ball is thrown up with an initial speed of 6.7 m/s. How high does it go? a. 0.342 m b. 0.684 m c. 2.29 m d. 4.58 m e. 6.55 m 7. A ball is thrown up with an initial speed of 6.7 m/s. How long is it in the air? a. 0.128 s b. 0.342 s c. 0.467 s d. 0.684 s e. 0.827 s 8. You drop a bowling ball and a marble from the top of a ladder. Which one hits the ground first? a. The bowling ball. b. The marble. c. Both hit the ground at the same time. 9. You drop a bowling ball and a marble from the top of a ladder. Which one hits the ground with the greatest speed? a. The bowling ball. b. The marble. c. Both hit the ground with the same speed. 10. A football is held in place on the ground and then kicked at an angle of 33˚ above the horizontal, with an initial speed of 21 m/s. To what maximum height does it travel? a. 1.96 m b. 6.67 m c. 13.3 m d. 20.6 m e. 41.1 m 11. A football is held in place on the ground and then kicked at an angle of 33˚ above the horizontal, with an initial speed of 21 m/s towards a wall 50 m away. How high up on the wall does the ball hit? a. 1.21 m b. 2.32 m c. 3.43 m d. 4.54 m e. It doesn’t hit the wall before bouncing on the ground. 12. You are standing at the edge of a cliff and throw a rock at 5 m/s straight out horizontally from 1 m above the top of the cliff, so that the rock is thrown from a total height of 97m above the bottom of the cliff. How long is it in the air before it hits the ground (which is completely flat from the bottom of the cliff to where the rock lands)? a. 3.15 s b. 4.45 s c. 9.90 s d. 19.4 s e. 19.8 s 13. For the previous problem, how far from the bottom of the cliff does the rock land? a. (answer in 12) times 5 b. (answer in 12) 2ivided by 5 c. (answer in 12) times 4.9 d. (answer in 12) divided by 4.9 e. (answer in 12) times 9.8 14. To prove to Lois Lane that he can truly jump over tall buildings (as the legend states), without actually flying, Superman leaps up at an angle of 70˚ to try to clear the Eiffel tower (which is 324 m high). With what minimum initial speed will he have to leave the ground? a. 58.1 m/s b. 60.0 m/s c. 82.2 m/s d. 84.8 m/s 15. A cannon is stationed on the top of a 12 m high cliff. It can shoot cannon balls with a velocity of 20 m/s and is initially positioned so that the cannon ball leaves the barrel horizontally. At the precise moment that a cannon ball is fired from the cannon, a soldier accidently knocks an identical cannon ball off the edge of the cliff from the same height as the cannon barrel. Which cannon ball hits the ground first? a. The cannon ball dropped by the soldier. b. The cannon ball fired horizontally. c. Both cannon balls will hit the ground at the same time. 16. A cannon is stationed on the top of a 12 m high cliff. It can shoot cannon balls with a velocity of 20 m/s and is initially positioned so that the cannon ball leaves the barrel horizontally. At the precise moment that a cannon ball is fired from the cannon, a soldier accidently knocks an identical cannon ball off the edge of the cliff from the same height as the cannon barrel. Which cannon ball hits the ground with the greatest speed? a. The cannon ball dropped by the soldier. b. The cannon ball fired horizontally. c. Both cannon balls will hit the ground with the same speed. 17. A cannon is stationed on the top of a 12 m high cliff. It can shoot cannon balls with a velocity of 20 m/s and is initially positioned so that the cannon ball leaves the barrel horizontally. At the precise moment that a cannon ball is fired from the cannon, a soldier accidently knocks an identical cannon ball off the edge of the cliff from the same height as the cannon barrel. Which cannon ball has the greatest acceleration just before it hits the ground? a. The cannon ball dropped by the soldier. b. The cannon ball fired horizontally. c. Both cannon balls have the same acceleration just before they hit the ground. 18. A 1500 kg sports car moving at constant speed travels 110m in 5 s. It then brakes and comes to a stop in 4 s. What was the car’s speed just before its brakes were applied? a. 0 b. 11m/s c. 22m/s d. 27.5m/s 19. In the previous problem, how far did the car travel from the point when the brakes were applied to when it stopped? a. 22 m b. 27.5 m c. 44 m d. 55 m e. 68.8 m f. 88 m g. 110 m h. 138 m 20. A tiger leaps horizontally from a 9.5 m high cliff and lands 6.5 m from its base. How long was it in the air? a. 1.15 s b. 1.33 s c. 1.39 s d. 1.94 s 21. In the previous problem, how fast was the tiger moving when it leaped? a. 8.26 m/s b. 7.14 m/s c. 6.83 m/s d. 5.65 m/s e. 4.89 m/s f. 4.68 m/s g. 3.35 m/s 22. A car is moving in a straight line to the left with constant velocity. One can conclude that: a. There must be no forces applied to the car. b. The net force applied to the car is directed to the left. c. The net force applied to the car is zero. d. There is exactly one force applied to the car. 23. A car is moving in a straight line to the left, and it is slowing down. One can conclude that: a. The net force applied to the car is directed to the left. b. The net force applied to the car is directed to the right. c. The net force applied to the car is zero. d. There is exactly one force applied to the car. 24. An object follows the trajectory shown below, with a constant speed v. What direction is the net force on the object at the position indicated? a. To the left b. To the right c. Straight up d. Straight down e. There is no net force on the object 25. A box sitting on a horizontal table is given a brief shove to get it moving. As the box slows down, Newton’s First Law would allow us to say: a. The force of friction between the box and the table is proportional to the acceleration felt by the box. b. The normal force of the table pushing up on the box equals the weight of the box. c. The force of friction is proportional to the weight of the box. d. The force of gravity on the box due to the Earth equals the force of gravity on the Earth due to the box. 26. A box sitting on a horizontal table is given a brief shove to get it moving. As the box slows down, Newton’s Second Law would allow us to say: a. The force of friction between the box and the table is proportional to the acceleration felt by the box. b. The normal force of the table pushing up on the box equals the weight of the box. c. The force of friction is proportional to the weight of the box. d. The force of gravity on the box due to the Earth equals the force of gravity on the Earth due to the box. 27. A box sitting on a horizontal table is given a brief shove to get it moving. As the box slows down, Newton’s Third Law would allow us to say: a. The force of friction between the box and the table is proportional to the acceleration felt by the box. b. The normal force of the table pushing up on the box equals the weight of the box. c. The force of friction is proportional to the weight of the box. d. The force of gravity on the box due to the Earth equals the force of gravity on the Earth due to the box.

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