Quizbank/College Physics/I T2study

TrigPhys_I_T2_Study

If you are reading this as a Wikiversity page, proper pagebreaks should result if printed using your browser's print option. On Chrome, Explorer, and Firefox, this option is available in the upper right hand corner of your screen. But, pagebreaks do not render properly if you use "Printable version" on Wikiversity's Print/export option on the left-hand sidebar.

This document contains either a study guide OR pairs of exams taken from the same exam bank: If two exams have the same s-number, then v1 and v2 have the same questions, presented in different (random) order.; Exams with different s-numbers have different questions and may not have the same difficulty.; Click items in the table of contents and appropriate page should be reached. This feature should allow you to print only those pages that you need.

At the end of this document: Attribution for the quizzes identifies where the questions were obtained; Study guide links reading materials and/or relevant equations.

TrigPhys_I_T2_Study-v1s1

1. When a table cloth is quickly pulled out from under dishes, they hardly move. This is because

___ a) the cloth is more slippery when it is pulled quickly

___ b) the cloth is accelerating for such a brief time that there is little motion

___ c) objects don't begin to accelerate until after the force has been applied

2. If you toss a coin into the air, the acceleration while it as its highest point is

___ a) zero

___ b) down

___ c) up

3. If you toss a coin into the air, the velocity on the way up is

___ a) zero

___ b) up

___ c) down

4. If you toss a coin into the air, the velocity on the way down is

___ a) down

___ b) up

___ c) zero

5. If you toss a coin into the air, the velocity while it as its highest point is

___ a) down

___ b) up

___ c) zero

6. A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

___ a) northwest

___ b) north

___ c) northeast

___ d) south

___ e) southwest

7. A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

___ a) northeast

___ b) southwest

___ c) south

___ d) north

___ e) northwest

8. A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The velocity vector points

___ a) northeast

___ b) southeast

___ c) northeast

___ d) north

___ e) northwest

9. A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The velocity vector points

___ a) south

___ b) north

___ c) northwest

___ d) southwest

___ e) northeast

10. A car is headed due north and decreasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

___ a) southwest

___ b) northwest

___ c) west

___ d) southeast

___ e) south

11. A car is headed due north and decreasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

___ a) northeast

___ b) northwest

___ c) southeast

___ d) north

___ e) south

12. A car is traveling west and slowing down. The acceleration is

___ a) zero

___ b) to the east

___ c) to the west

13. A car is traveling east and slowing down. The acceleration is

___ a) to the west

___ b) zero

___ c) to the east

14. A car is traveling east and speeding up. The acceleration is

___ a) zero

___ b) to the west

___ c) to the east

15. If you toss a coin into the air, the acceleration on the way up is

___ a) down

___ b) up

___ c) zero

16. A car is traveling in a perfect circle at constant speed. If the car is headed north while turning west, the acceleration is

___ a) south

___ b) west

___ c) north

___ d) east

___ e) zero

17. A car is traveling in a perfect circle at constant speed. If the car is headed north while turning east, the acceleration is

___ a) south

___ b) east

___ c) zero

___ d) north

___ e) west

18. As the Moon circles Earth, the acceleration of the Moon is

___ a) in the same direction as the Moon's velocity

___ b) away from Earth

___ c) opposite the direction of the Moon's velocity

___ d) towards Earth

___ e) zero

19. If you toss a coin into the air, the acceleration on the way down is

___ a) down

___ b) zero

___ c) up

20. A mass with weight (mg) of 39 newtons is suspended symmetrically from two strings. The angle between the two strings (i.e. where they are attached to the mass) is 56 degrees. What is the tension in the string?

___a) 22.1 N.

___b) 25.4 N.

___c) 29.2 N.

___d) 33.6 N.

___e) 38.6 N.

21. A mass with weight (mg) equal to 42 newtons is suspended symmetrically from two strings. Each string makes the (same) angle of 59 degrees with respect to the horizontal. What is the tension in each string?

___a) 21.3 N.

___b) 24.5 N.

___c) 28.2 N.

___d) 32.4 N.

___e) 37.3 N.

22. A 3.2 kg mass is sliding along a surface that has a kinetic coefficient of friction equal to 0.29 . In addition to the surface friction, there is also an air drag equal to 21 N. What is the magnitude (absolute value) of the acceleration?

___a) 8.2 m/s².

___b) 9.4 m/s².

___c) 10.8 m/s².

___d) 12.4 m/s².

___e) 14.3 m/s².

23. A mass with weight (mg) 11 newtons is on a horzontal surface. It is being pulled on by a string at an angle of 30 degrees above the horizontal, with a force equal to 2.77 newtons. If this is the maximum force before the block starts to move, what is the static coefficient of friction?

___a) 0.12

___b) 0.14

___c) 0.17

___d) 0.21

___e) 0.25

24. A sled of mass 5.9 kg is at rest on a rough surface. A string pulls with a tension of 43.7N at an angle of 41 degress above the horizontal. What is the magnitude of the friction?

___a) 24.94 N.

___b) 28.68 N.

___c) 32.98 N.

___d) 37.93 N.

___e) 43.62 N.

25. A sled of mass 5.8 kg is at rest on a rough surface. A string pulls with a tension of 41.9N at an angle of 42 degress above the horizontal. What is the normal force?

___a) 18.94 N.

___b) 21.78 N.

___c) 25.05 N.

___d) 28.8 N.

___e) 33.12 N.

26. A sled of mass 5.5 kg is at rest on a perfectly smooth surface. A string pulls with a tension of 40.3N at an angle of 43 degress above the horizontal. How long will it take to reach a speed of 9 m/s?

___a) 1.27 s

___b) 1.46 s

___c) 1.68 s

___d) 1.93 s

___e) 2.22 s

27. A sled of mass 2.2 kg is on perfectly smooth surface. A string pulls with a tension of 17.2N. At what angle above the horizontal must the string pull in order to achieve an accelerations of 3.5 m/s²?

___a) 36.3 degrees

___b) 41.7 degrees

___c) 47.9 degrees

___d) 55.1 degrees

___e) 63.4 degrees

28.

In the figure shown, θ₁ is 18 degrees, and θ₃ is 35 degrees. The tension T₃ is 48 N. What is the tension, T₁?

___a) 31.26 N.

___b) 35.95 N.

___c) 41.34 N.

___d) 47.54 N.

___e) 54.68 N.

29. In the figure "3 tensions" shown above θ₁ is 16 degrees, and θ₃ is 30 degrees. The tension T₃ is 45 N. What is the weight?

___a) 25.5 N.

___b) 29.3 N.

___c) 33.7 N.

___d) 38.7 N.

___e) 44.5 N.

30.

In the figure shown, θ is 36 degrees, and the mass is 3.1 kg. What is T₂?

___a) 39.08 N.

___b) 44.94 N.

___c) 51.69 N.

___d) 59.44 N.

___e) 68.35 N.

31.

In the figure shown, θ is 33 degrees, and the mass is 2.7 kg. What is T₁?

___a) 40.7 N.

___b) 48.9 N.

___c) 58.7 N.

___d) 70.4 N.

___e) 84.5 N.

32.

In the figure shown, θ₁ is 16 degrees , and θ₃ is 35 degrees . The mass has a 'weight' of 28 N. What is the tension, T₁?

___a) 19.41 N.

___b) 22.32 N.

___c) 25.66 N.

___d) 29.51 N.

___e) 33.94 N.

33.

In the figure shown, the mass of m₁ is 6.7 kg, and the mass of m₂ is 2.5 kg. If the external force, F_ext on m₂ is 101 N, what is the tension in the connecting string? Assume no friction is present.

___a) 55.6 N

___b) 64 N

___c) 73.6 N

___d) 84.6 N

___e) 97.3 N

34.

In the figure shown (with m₁ = 5.1 kg, m₂ = 2.8 kg, and F_ext = 148 N), what is the acceleration? Assume no friction is present.

___a) 14.2 m/s²

___b) 16.3 m/s²

___c) 18.7 m/s²

___d) 21.5 m/s²

___e) 24.8 m/s²

35. Nine barefoot baseball players, with a total mass of 679 kg plays tug of war against five basketball players wearing shoes that provide a static coefficient of friction of 0.61 . The net mass of the (shoed) basketball team is 380 kg. What is the maximum coefficient of the barefoot boys if they lose?

___a) 0.31

___b) 0.341

___c) 0.376

___d) 0.413

___e) 0.454

36. Without their shoes, members of a 9 person baseball team have a coefficient of static friction of only 0.23 . But the team wins a game of tug of war due to their superior mass of 607 kg. They are playing against a 5 person basketball team with a net mass of 429 kg. What is the maximum coefficient of static friction of the basketball team?

___a) 0.269

___b) 0.296

___c) 0.325

___d) 0.358

___e) 0.394

37.

In the figure shown, the mass of m₁ is 5.2 kg, and the mass of m₂ is 2.9 kg. If the external force, F_ext on m₂ is 179 N, what is the tension in the connecting string? Assume that m₁ has a kinetic coefficient of friction equal to 0.36, and that for m₂ the coefficient is 0.46 .

___a) 74.4 N

___b) 85.5 N

___c) 98.3 N

___d) 113.1 N

___e) 130.1 N

38. A merry-go-round has an angular frequency, $\omega$ , equal to 0.198 rad/sec. How many minutes does it take to complete 10.5 revolutions?

___a) 4.83 minutes.

___b) 5.55 minutes.

___c) 6.39 minutes.

___d) 7.34 minutes.

___e) 8.45 minutes.

39. A merry-go round has a period of 0.38 minutes. What is the centripetal force on a 64.8 kg person who is standing 1.76 meters from the center?

___a) 5 newtons.

___b) 5.7 newtons.

___c) 6.5 newtons.

___d) 7.5 newtons.

___e) 8.7 newtons.

40. A merry-go round has a period of 0.32 minutes. What is the minimum coefficient of static friction that would allow a 88.1 kg person to stand1.73 meters from the center, without grabbing something?

___a) 0.019

___b) 0.022

___c) 0.025

___d) 0.029

___e) 0.033

41. What is the gravitational acceleration on a plant that is 1.34 times more massive than Earth, and a radius that is 1.88 times greater than Earths?

___a) 2.4 m/s²

___b) 2.8 m/s²

___c) 3.2 m/s²

___d) 3.7 m/s²

___e) 4.3 m/s²

42. What is the gravitational acceleration on a plant that is 1.47 times more dense than Earth, and a radius that is 1.42 times greater than Earth's?

___a) 20.5 m/s²

___b) 23.5 m/s²

___c) 27.1 m/s²

___d) 31.1 m/s²

___e) 35.8 m/s²

Key to TrigPhys_I_T2_Study-v1s1

1. When a table cloth is quickly pulled out from under dishes, they hardly move. This is because

- a) the cloth is more slippery when it is pulled quickly

+ b) the cloth is accelerating for such a brief time that there is little motion

- c) objects don't begin to accelerate until after the force has been applied

2. If you toss a coin into the air, the acceleration while it as its highest point is

- a) zero

+ b) down

- c) up

3. If you toss a coin into the air, the velocity on the way up is

- a) zero

+ b) up

- c) down

4. If you toss a coin into the air, the velocity on the way down is

+ a) down

- b) up

- c) zero

5. If you toss a coin into the air, the velocity while it as its highest point is

- a) down

- b) up

+ c) zero

6. A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

+ a) northwest

- b) north

- c) northeast

- d) south

- e) southwest

7. A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

+ a) northeast

- b) southwest

- c) south

- d) north

- e) northwest

8. A car is headed due north and increasing its speed. It is also turning left because it is also traveling in a perfect circle. The velocity vector points

- a) northeast

- b) southeast

- c) northeast

+ d) north

- e) northwest

9. A car is headed due north and increasing its speed. It is also turning right because it is also traveling in a perfect circle. The velocity vector points

- a) south

+ b) north

- c) northwest

- d) southwest

- e) northeast

10. A car is headed due north and decreasing its speed. It is also turning left because it is also traveling in a perfect circle. The acceleration vector points

+ a) southwest

- b) northwest

- c) west

- d) southeast

- e) south

11. A car is headed due north and decreasing its speed. It is also turning right because it is also traveling in a perfect circle. The acceleration vector points

- a) northeast

- b) northwest

+ c) southeast

- d) north

- e) south

12. A car is traveling west and slowing down. The acceleration is

- a) zero

+ b) to the east

- c) to the west

13. A car is traveling east and slowing down. The acceleration is

+ a) to the west

- b) zero

- c) to the east

14. A car is traveling east and speeding up. The acceleration is

- a) zero

- b) to the west

+ c) to the east

15. If you toss a coin into the air, the acceleration on the way up is

+ a) down

- b) up

- c) zero

16. A car is traveling in a perfect circle at constant speed. If the car is headed north while turning west, the acceleration is

- a) south

+ b) west

- c) north

- d) east

- e) zero

17. A car is traveling in a perfect circle at constant speed. If the car is headed north while turning east, the acceleration is

- a) south

+ b) east

- c) zero

- d) north

- e) west

18. As the Moon circles Earth, the acceleration of the Moon is

- a) in the same direction as the Moon's velocity

- b) away from Earth

- c) opposite the direction of the Moon's velocity

+ d) towards Earth

- e) zero

19. If you toss a coin into the air, the acceleration on the way down is

+ a) down

- b) zero

- c) up

+a) 22.1 N.

-b) 25.4 N.

-c) 29.2 N.

-d) 33.6 N.

-e) 38.6 N.

-a) 21.3 N.

+b) 24.5 N.

-c) 28.2 N.

-d) 32.4 N.

-e) 37.3 N.

-a) 8.2 m/s².

+b) 9.4 m/s².

-c) 10.8 m/s².

-d) 12.4 m/s².

-e) 14.3 m/s².

-a) 0.12

-b) 0.14

-c) 0.17

-d) 0.21

+e) 0.25

24. A sled of mass 5.9 kg is at rest on a rough surface. A string pulls with a tension of 43.7N at an angle of 41 degress above the horizontal. What is the magnitude of the friction?

-a) 24.94 N.

-b) 28.68 N.

+c) 32.98 N.

-d) 37.93 N.

-e) 43.62 N.

25. A sled of mass 5.8 kg is at rest on a rough surface. A string pulls with a tension of 41.9N at an angle of 42 degress above the horizontal. What is the normal force?

-a) 18.94 N.

-b) 21.78 N.

-c) 25.05 N.

+d) 28.8 N.

-e) 33.12 N.

-a) 1.27 s

-b) 1.46 s

+c) 1.68 s

-d) 1.93 s

-e) 2.22 s

-a) 36.3 degrees

-b) 41.7 degrees

-c) 47.9 degrees

-d) 55.1 degrees

+e) 63.4 degrees

28.

In the figure shown, θ₁ is 18 degrees, and θ₃ is 35 degrees. The tension T₃ is 48 N. What is the tension, T₁?

-a) 31.26 N.

-b) 35.95 N.

+c) 41.34 N.

-d) 47.54 N.

-e) 54.68 N.

29. In the figure "3 tensions" shown above θ₁ is 16 degrees, and θ₃ is 30 degrees. The tension T₃ is 45 N. What is the weight?

-a) 25.5 N.

-b) 29.3 N.

+c) 33.7 N.

-d) 38.7 N.

-e) 44.5 N.

30.

In the figure shown, θ is 36 degrees, and the mass is 3.1 kg. What is T₂?

-a) 39.08 N.

-b) 44.94 N.

+c) 51.69 N.

-d) 59.44 N.

-e) 68.35 N.

31.

In the figure shown, θ is 33 degrees, and the mass is 2.7 kg. What is T₁?

+a) 40.7 N.

-b) 48.9 N.

-c) 58.7 N.

-d) 70.4 N.

-e) 84.5 N.

32.

In the figure shown, θ₁ is 16 degrees , and θ₃ is 35 degrees . The mass has a 'weight' of 28 N. What is the tension, T₁?

-a) 19.41 N.

-b) 22.32 N.

-c) 25.66 N.

+d) 29.51 N.

-e) 33.94 N.

33.

-a) 55.6 N

-b) 64 N

+c) 73.6 N

-d) 84.6 N

-e) 97.3 N

34.

In the figure shown (with m₁ = 5.1 kg, m₂ = 2.8 kg, and F_ext = 148 N), what is the acceleration? Assume no friction is present.

-a) 14.2 m/s²

-b) 16.3 m/s²

+c) 18.7 m/s²

-d) 21.5 m/s²

-e) 24.8 m/s²

-a) 0.31

+b) 0.341

-c) 0.376

-d) 0.413

-e) 0.454

-a) 0.269

-b) 0.296

+c) 0.325

-d) 0.358

-e) 0.394

37.

-a) 74.4 N

-b) 85.5 N

-c) 98.3 N

+d) 113.1 N

-e) 130.1 N

38. A merry-go-round has an angular frequency, $\omega$ , equal to 0.198 rad/sec. How many minutes does it take to complete 10.5 revolutions?

-a) 4.83 minutes.

+b) 5.55 minutes.

-c) 6.39 minutes.

-d) 7.34 minutes.

-e) 8.45 minutes.

39. A merry-go round has a period of 0.38 minutes. What is the centripetal force on a 64.8 kg person who is standing 1.76 meters from the center?

-a) 5 newtons.

-b) 5.7 newtons.

-c) 6.5 newtons.

-d) 7.5 newtons.

+e) 8.7 newtons.

+a) 0.019

-b) 0.022

-c) 0.025

-d) 0.029

-e) 0.033

41. What is the gravitational acceleration on a plant that is 1.34 times more massive than Earth, and a radius that is 1.88 times greater than Earths?

-a) 2.4 m/s²

-b) 2.8 m/s²

-c) 3.2 m/s²

+d) 3.7 m/s²

-e) 4.3 m/s²

42. What is the gravitational acceleration on a plant that is 1.47 times more dense than Earth, and a radius that is 1.42 times greater than Earth's?

+a) 20.5 m/s²

-b) 23.5 m/s²

-c) 27.1 m/s²

-d) 31.1 m/s²

-e) 35.8 m/s²

Attribution (for quiz questions) under CC-by-SA license

http://en.wikiversity.org/w/index.php?title=How_things_work_college_course/Conceptual_physics_wikiquizzes/Velocity_and_acceleration&oldid=137851

http://en.wikiversity.org/w/index.php?title=Physics_equations/18-Electric_charge_and_field/Q:findE&oldid=1378605

Study guide

http://en.wikibooks.org/w/index.php?title=Physics_Study_Guide&oldid=2516212

http://en.wikiversity.org/wiki/Physics_equations/Sheet/All_chapters

This article is issued from Wikiversity - version of the Thursday, August 20, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.