Exam 4--PHYS 101--Fall 2018

Size: px
Start display at page:

Download "Exam 4--PHYS 101--Fall 2018"

Transcription

1 Name: Class: Exam 4--PHYS 101--Fall 2018 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The answer to this question is B. a. A b. B c. C d. D 5. A ferris wheel with a radius of 20.0 m rotates at a speed of 1.00 rev/min (=0.10 rad/s). A person with a mass of kg sits in a chair. As the ferris wheel spins, the person is at the lowest point. What is the normal force acting on the person? 2. How many revolutions is 400 degrees? a rev b. 64 rev c. 1.1 rev d. 144,000 rev 3. What is the angular displacement of a clock s hour hand, in radians, between Noon and 6pm? π a. 2 b. 2π 3π c. 2 d. π a N b N c. 980 N d N e N 6. A fan spins at 12.0 rev/s. You turn it off, and it slows at 3.0 rev/s 2. What is its angular displacement before coming to rest? 4. A car rounds a curve on a flat road. The coefficient of static friction between the road and tires is If the curve has a radius of 50. meters, what is the maximum safe speed at which the car can round the curve? a. 72 rev b. 36 rev c. 48 rev d. 24 rev e. 32 rev a. 71 m/s b. 340 m/s c. 35 m/s d. 19 m/s 1

2 7. Consider two pits on a CD, one close to the center and one close to the outer edge. When the CD makes one full rotation, which pit would have gone through a greater angle of rotation? Which one would have covered a greater arc length? a. The one close to the center would go through the greater angle of rotation. The one near the outer edge would trace a greater arc length. b. The one close to the center would go through the greater angle of rotation. The one near the center would trace a greater arc length. c. Both would go through the same angle of rotation. The one near the outer edge would trace a greater arc length. d. Both would go through the same angle of rotation. The one near the center would trace a greater arc length. 8. A hoop has a radius of 2.0 meters and a mass of 10.0 kg. The hoop rolls at a speed of 4.0 m/s. What is the total energy of this rolling hoop? 10. These objects have identical dimensions and mass, but they rotate about different axes of rotation, shown with the dotted line. Rank them in order from least to greatest moment of inertia a. B<C<D<A b. D<C=B<A c. B=C<D<A d. C<B<A<D e. B=C<A<D 11. A merry go round has a moment of inertia of kg m 2 and a radius of 1.0 m. A 50.0 kg kid jumps onto the edge of the merry-go-round. What is moment of inertia of the system now? a. 160 J b. 40 J c. 80 J d. 120 J 9. A figure skater pulls her arms in to decrease her moment of inertia by a factor of two. As a result, she spins twice as fast. What has happened to her rotational energy? a. it has increased by a factor of 4 b. it has increased by a factor of 2 c. it remains the same d. it has decreased by a factor of 2 e. it has decreased by a factor of 4 a. 250 kg m 2 b. 225 kg m 2 c. 200 kg m 2 d. 175 kg m 2 e. 150 kg m Buckets are spinning horizontally on frictionless bearings. Suddenly, it starts raining. Which of these statements is true: a. the buckets moment of inertia will increase, causing the buckets angular momentum to increase b. the buckets will spin at the same angular speed because there is no torque acting on this c. the buckets angular speed will decrease because their moment of inertia is increasing d. None of these are true 2

3 13. An object has a moment of inertia of 10.0 kg m 2 and is rotating at 6.0 rev/s. The object expands, so the moment of inertia increases to 20.0 kg m 2. What is its new angular speed? 16. Consider the bar in this figure. What is the net torque? a. 1.5 rev/s b. 24 rev/s c. 6.0 rev/s d. 3.0 rev/s e. 12 rev/s 14. You use a class I lever to lift an object of mass 12 kg as in this figure. The distance from the axis of rotation to the object is 3.0 m; the distance from the axis of rotation to where the force is applied is 1.0 m. What minimum force must be applied to lift the object? a. 30 N b. 120 N c. 40 N d. 80 N e. 360 N a. 64 Nm clockwise b. 30 Nm clockwise c. 6 Nm clockwise d. 60 Nm clockwise e. 40 Nm clockwise 17. Consider the bar in the figure from the previous problem; it is initially at rest. After three seconds, what is the angular speed of the bar? a. 120 rad/s b. 20 rad/s c. 30 rad/s d. 80 rad/s e. 40 rad/s 15. A force is applied 3m away from the pivot point on a lever arm and it produces torque. How much force would have to be applied to produce the same amount of torque if it were applied 1m from the pivot point? Assume that both forces are applied perpendicularly to the lever arm. a. same as the initial force b. one-third the intial force c. three times the initial force d. one-ninth the intiial force e. nine times the initial force 3

4 18. Consider the hoop in this figure; it rotates about point C. What is the magnitude of the angular acceleration of the hoop? 20. A block of unknown density is floating in a fluid such as in this figure. Which of these statements about the density of the block is true? a. 15 rad/s 2 b. 30 rad/s 2 c. 45 rad/s 2 d. 60 rad/s 2 e. 90 rad/s You want to completely submerge a block of ice with mass=0.50 kg in liquid water. What force must you exert on the block in order to do so? a. the block has more mass than the fluid b. the block is more dense than the fluid c. the block has the same density than the fluid d. the block is less dense than the fluid 21. Water flows through a pipe. The pressure is 2000 Pa, and the water flows at 1.0 m/s. The water enters a narrower pipe, and the speed is 2.0 m/s. What is the pressure in this second section of pipe? a N b. 9.3 N c. 3.7 N d. 5.0 N e. 8.2 N a. 500 Pa b Pa c Pa d Pa 22. A swift wind blows across the top of a chimney. What happens to the smoke rising inside of the chimney? a. the smoke rises more quickly b. the smoke is pushed down the chimney c. the smoke is unaffected by the wind 4

5 23. Which fills a larger volume: 100 kg of gold or 100 kg of lead? a. gold b. lead c. both have the same volume d. there is not enough information 26. Consider this manometer. Which statement best describes the relationship between P and P 0? 24. This figure shows a hydraulic lift. The force F 1 has a magnitude of 100N, and the area A 1 is 0.01m 2. If the area A 2 is 1.0m 2, what is the weight of the truck? a. P>P 0 b. P=P 0 c. P<P 0 d. it depends on the density of the material in the manometer a N b. 10,000 N c. 100,000 N d. 1,000,000 N 25. A cylindrical container is 4.0 m tall and has a diameter of 2.0 m. It contains kg of water; the container is not full. What pressure is exerted on the bottom of the container by the water? 27. Which of these states of matter is/are compressible? I. Solid II. Liquid III. Gas a. II & III b. I & II c. III only d. all of these are compressible 28. Who s awesome? a. The guy next to me. b. The lady in front of me. c. The fellow on my right. d. All of these!!!! a. 40,000 Pa b. 640 Pa c. 160 Pa d. 100,000 Pa 5

6 ID: A Exam 4--PHYS 101--Fall 2018 Answer Section MULTIPLE CHOICE 1. ANS: B PTS: 1 2. ANS: C PTS: 1 REF: F18 3. ANS: D PTS: 1 REF: F18 4. ANS: D PTS: 1 REF: F18 5. ANS: D PTS: 1 REF: F18 6. ANS: D PTS: 1 REF: F18-Tutor 7. ANS: C PTS: 1 REF: F18-Tutor 8. ANS: A PTS: 1 REF: F18-Tutor 9. ANS: B PTS: 1 REF: F15, F ANS: C PTS: 1 REF: F ANS: A PTS: 1 REF: F ANS: C PTS: 1 REF: F ANS: D PTS: 1 REF: F ANS: E PTS: 1 REF: F ANS: C PTS: 1 REF: F18--Tutor 16. ANS: E PTS: 1 REF: F ANS: C PTS: 1 REF: F ANS: A PTS: 1 REF: F ANS: A PTS: 1 REF: F18-Tutor 20. ANS: D PTS: 1 REF: F ANS: A PTS: 1 REF: F15, F ANS: A PTS: 1 REF: F15, F ANS: B PTS: 1 REF: F15, F ANS: B PTS: 1 REF: F18-Tutor 25. ANS: B PTS: 1 REF: F18-Tutor 26. ANS: C PTS: 1 REF: F ANS: C PTS: 1 REF: F ANS: D PTS: 1 1

Exam 3--PHYS 101--F11--Chapters 7, 8, & 9

Exam 3--PHYS 101--F11--Chapters 7, 8, & 9 ame: Exam 3--PHYS 101--F11--Chapters 7, 8, & 9 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A 1500 kg truck must travel a maximum of 22 m/s around a

More information

Exam 4--PHYS 101--Fall 2016

Exam 4--PHYS 101--Fall 2016 Name: Exam 4--PHYS 101--Fall 2016 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A bus contains a 2000 kg flywheel (a disk that has a 0.500 m radius)

More information

Exam 2--PHYS 101-Fall 2009

Exam 2--PHYS 101-Fall 2009 ame: Class: Date: Exam 2--PHYS 101-Fall 2009 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Consider this figure of a roller coaster: At which of these

More information

Chapter 9-10 Test Review

Chapter 9-10 Test Review Chapter 9-10 Test Review Chapter Summary 9.2. The Second Condition for Equilibrium Explain torque and the factors on which it depends. Describe the role of torque in rotational mechanics. 10.1. Angular

More information

AP Physics 1 Rotational Motion Practice Test

AP Physics 1 Rotational Motion Practice Test AP Physics 1 Rotational Motion Practice Test MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A spinning ice skater on extremely smooth ice is able

More information

Physics 53 Exam 3 November 3, 2010 Dr. Alward

Physics 53 Exam 3 November 3, 2010 Dr. Alward 1. When the speed of a rear-drive car (a car that's driven forward by the rear wheels alone) is increasing on a horizontal road the direction of the frictional force on the tires is: A) forward for all

More information

Test 7 wersja angielska

Test 7 wersja angielska Test 7 wersja angielska 7.1A One revolution is the same as: A) 1 rad B) 57 rad C) π/2 rad D) π rad E) 2π rad 7.2A. If a wheel turns with constant angular speed then: A) each point on its rim moves with

More information

Exam 3--PHYS 101--F15

Exam 3--PHYS 101--F15 Name: Exam 3--PHYS 0--F5 Multiple Choice Identify the choice that best completes the statement or answers the question.. It takes 00 m to stop a car initially moving at 25.0 m/s. The distance required

More information

I pt mass = mr 2 I sphere = (2/5) mr 2 I hoop = mr 2 I disk = (1/2) mr 2 I rod (center) = (1/12) ml 2 I rod (end) = (1/3) ml 2

I pt mass = mr 2 I sphere = (2/5) mr 2 I hoop = mr 2 I disk = (1/2) mr 2 I rod (center) = (1/12) ml 2 I rod (end) = (1/3) ml 2 Fall 008 RED Barcode Here Physics 105, sections 1 and Exam 3 Please write your CID Colton -3669 3 hour time limit. One 3 5 handwritten note card permitted (both sides). Calculators permitted. No books.

More information

1. Which of the following is the unit for angular displacement? A. Meters B. Seconds C. Radians D. Radian per second E. Inches

1. Which of the following is the unit for angular displacement? A. Meters B. Seconds C. Radians D. Radian per second E. Inches AP Physics B Practice Questions: Rotational Motion Multiple-Choice Questions 1. Which of the following is the unit for angular displacement? A. Meters B. Seconds C. Radians D. Radian per second E. Inches

More information

Big Idea 4: Interactions between systems can result in changes in those systems. Essential Knowledge 4.D.1: Torque, angular velocity, angular

Big Idea 4: Interactions between systems can result in changes in those systems. Essential Knowledge 4.D.1: Torque, angular velocity, angular Unit 7: Rotational Motion (angular kinematics, dynamics, momentum & energy) Name: Big Idea 3: The interactions of an object with other objects can be described by forces. Essential Knowledge 3.F.1: Only

More information

Name: Date: Period: AP Physics C Rotational Motion HO19

Name: Date: Period: AP Physics C Rotational Motion HO19 1.) A wheel turns with constant acceleration 0.450 rad/s 2. (9-9) Rotational Motion H19 How much time does it take to reach an angular velocity of 8.00 rad/s, starting from rest? Through how many revolutions

More information

Webreview Torque and Rotation Practice Test

Webreview Torque and Rotation Practice Test Please do not write on test. ID A Webreview - 8.2 Torque and Rotation Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A 0.30-m-radius automobile

More information

Fall 2007 RED Barcode Here Physics 105, sections 1 and 2 Please write your CID Colton

Fall 2007 RED Barcode Here Physics 105, sections 1 and 2 Please write your CID Colton Fall 007 RED Barcode Here Physics 105, sections 1 and Exam 3 Please write your CID Colton -3669 3 hour time limit. One 3 5 handwritten note card permitted (both sides). Calculators permitted. No books.

More information

Rolling, Torque & Angular Momentum

Rolling, Torque & Angular Momentum PHYS 101 Previous Exam Problems CHAPTER 11 Rolling, Torque & Angular Momentum Rolling motion Torque Angular momentum Conservation of angular momentum 1. A uniform hoop (ring) is rolling smoothly from the

More information

Chapter 12. Rotation of a Rigid Body

Chapter 12. Rotation of a Rigid Body Chapter 12. Rotation of a Rigid Body Not all motion can be described as that of a particle. Rotation requires the idea of an extended object. This diver is moving toward the water along a parabolic trajectory,

More information

Chapter 8 Rotational Motion and Equilibrium. 1. Give explanation of torque in own words after doing balance-the-torques lab as an inquiry introduction

Chapter 8 Rotational Motion and Equilibrium. 1. Give explanation of torque in own words after doing balance-the-torques lab as an inquiry introduction Chapter 8 Rotational Motion and Equilibrium Name 1. Give explanation of torque in own words after doing balance-the-torques lab as an inquiry introduction 1. The distance between a turning axis and the

More information

1 MR SAMPLE EXAM 3 FALL 2013

1 MR SAMPLE EXAM 3 FALL 2013 SAMPLE EXAM 3 FALL 013 1. A merry-go-round rotates from rest with an angular acceleration of 1.56 rad/s. How long does it take to rotate through the first rev? A) s B) 4 s C) 6 s D) 8 s E) 10 s. A wheel,

More information

PSI AP Physics I Rotational Motion

PSI AP Physics I Rotational Motion PSI AP Physics I Rotational Motion Multiple-Choice questions 1. Which of the following is the unit for angular displacement? A. meters B. seconds C. radians D. radians per second 2. An object moves from

More information

PSI AP Physics I Rotational Motion

PSI AP Physics I Rotational Motion PSI AP Physics I Rotational Motion Multiple-Choice questions 1. Which of the following is the unit for angular displacement? A. meters B. seconds C. radians D. radians per second 2. An object moves from

More information

A) 1 gm 2 /s. B) 3 gm 2 /s. C) 6 gm 2 /s. D) 9 gm 2 /s. E) 10 gm 2 /s. A) 0.1 kg. B) 1 kg. C) 2 kg. D) 5 kg. E) 10 kg A) 2:5 B) 4:5 C) 1:1 D) 5:4

A) 1 gm 2 /s. B) 3 gm 2 /s. C) 6 gm 2 /s. D) 9 gm 2 /s. E) 10 gm 2 /s. A) 0.1 kg. B) 1 kg. C) 2 kg. D) 5 kg. E) 10 kg A) 2:5 B) 4:5 C) 1:1 D) 5:4 1. A 4 kg object moves in a circle of radius 8 m at a constant speed of 2 m/s. What is the angular momentum of the object with respect to an axis perpendicular to the circle and through its center? A)

More information

Physics 130: Questions to study for midterm #1 from Chapter 8

Physics 130: Questions to study for midterm #1 from Chapter 8 Physics 130: Questions to study for midterm #1 from Chapter 8 1. If the beaters on a mixer make 800 revolutions in 5 minutes, what is the average rotational speed of the beaters? a. 2.67 rev/min b. 16.8

More information

Rotation Quiz II, review part A

Rotation Quiz II, review part A Rotation Quiz II, review part A 1. A solid disk with a radius R rotates at a constant rate ω. Which of the following points has the greater angular velocity? A. A B. B C. C D. D E. All points have the

More information

Rotation. PHYS 101 Previous Exam Problems CHAPTER

Rotation. PHYS 101 Previous Exam Problems CHAPTER PHYS 101 Previous Exam Problems CHAPTER 10 Rotation Rotational kinematics Rotational inertia (moment of inertia) Kinetic energy Torque Newton s 2 nd law Work, power & energy conservation 1. Assume that

More information

Final (3.4)(2.54) = ( )( ) = x = max+ mv 2. + at 2 d. mv = xma t. Name: Class: Date:

Final (3.4)(2.54) = ( )( ) = x = max+ mv 2. + at 2 d. mv = xma t. Name: Class: Date: Name: Class: Date: Final Multiple Choice Identify the choice that best completes the statement or answers the question. 1. What is the result of this calculation: (3.4)(2.54) 2.0 + 4 = 8.318 a. 8.318 c.

More information

Name Student ID Score Last First. I = 2mR 2 /5 around the sphere s center of mass?

Name Student ID Score Last First. I = 2mR 2 /5 around the sphere s center of mass? NOTE: ignore air resistance in all Questions. In all Questions choose the answer that is the closest!! Question I. (15 pts) Rotation 1. (5 pts) A bowling ball that has an 11 cm radius and a 7.2 kg mass

More information

Chapter 8 - Rotational Dynamics and Equilibrium REVIEW

Chapter 8 - Rotational Dynamics and Equilibrium REVIEW Pagpalain ka! (Good luck, in Filipino) Date Chapter 8 - Rotational Dynamics and Equilibrium REVIEW TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) When a rigid body

More information

Exam II. Spring 2004 Serway & Jewett, Chapters Fill in the bubble for the correct answer on the answer sheet. next to the number.

Exam II. Spring 2004 Serway & Jewett, Chapters Fill in the bubble for the correct answer on the answer sheet. next to the number. Agin/Meyer PART I: QUALITATIVE Exam II Spring 2004 Serway & Jewett, Chapters 6-10 Assigned Seat Number Fill in the bubble for the correct answer on the answer sheet. next to the number. NO PARTIAL CREDIT:

More information

We define angular displacement, θ, and angular velocity, ω. What's a radian?

We define angular displacement, θ, and angular velocity, ω. What's a radian? We define angular displacement, θ, and angular velocity, ω Units: θ = rad ω = rad/s What's a radian? Radian is the ratio between the length of an arc and its radius note: counterclockwise is + clockwise

More information

PHYS 1303 Final Exam Example Questions

PHYS 1303 Final Exam Example Questions PHYS 1303 Final Exam Example Questions 1.Which quantity can be converted from the English system to the metric system by the conversion factor 5280 mi f 12 f in 2.54 cm 1 in 1 m 100 cm 1 3600 h? s a. feet

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam #3 Name 1) A 2000. kg car, traveling to the right at 30. m/s, collides with a brick wall and comes to rest in 0.20 s. 1) The average force the car exerts on the wall is A) 60. kn. B) 12. kn. C) 300

More information

Phys 106 Practice Problems Common Quiz 1 Spring 2003

Phys 106 Practice Problems Common Quiz 1 Spring 2003 Phys 106 Practice Problems Common Quiz 1 Spring 2003 1. For a wheel spinning with constant angular acceleration on an axis through its center, the ratio of the speed of a point on the rim to the speed

More information

Physics 201, Practice Midterm Exam 3, Fall 2006

Physics 201, Practice Midterm Exam 3, Fall 2006 Physics 201, Practice Midterm Exam 3, Fall 2006 1. A figure skater is spinning with arms stretched out. A moment later she rapidly brings her arms close to her body, but maintains her dynamic equilibrium.

More information

TutorBreeze.com 7. ROTATIONAL MOTION. 3. If the angular velocity of a spinning body points out of the page, then describe how is the body spinning?

TutorBreeze.com 7. ROTATIONAL MOTION. 3. If the angular velocity of a spinning body points out of the page, then describe how is the body spinning? 1. rpm is about rad/s. 7. ROTATIONAL MOTION 2. A wheel rotates with constant angular acceleration of π rad/s 2. During the time interval from t 1 to t 2, its angular displacement is π rad. At time t 2

More information

CHAPTER 8: ROTATIONAL OF RIGID BODY PHYSICS. 1. Define Torque

CHAPTER 8: ROTATIONAL OF RIGID BODY PHYSICS. 1. Define Torque 7 1. Define Torque 2. State the conditions for equilibrium of rigid body (Hint: 2 conditions) 3. Define angular displacement 4. Define average angular velocity 5. Define instantaneous angular velocity

More information

Review PHYS114 Chapters 4-7

Review PHYS114 Chapters 4-7 Review PHYS114 Chapters 4-7 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A 27 kg object is accelerated at a rate of 1.7 m/s 2. What force does

More information

= o + t = ot + ½ t 2 = o + 2

= o + t = ot + ½ t 2 = o + 2 Chapters 8-9 Rotational Kinematics and Dynamics Rotational motion Rotational motion refers to the motion of an object or system that spins about an axis. The axis of rotation is the line about which the

More information

Please choose the letter corresponding to the best answer to each problem (5 pts each).

Please choose the letter corresponding to the best answer to each problem (5 pts each). Please choose the letter corresponding to the best answer to each problem (5 pts each). 1. A 10-m uniform horizontal beam of weight 75 N is supported by two vertical posts. The left post is at the left

More information

Torque rotational force which causes a change in rotational motion. This force is defined by linear force multiplied by a radius.

Torque rotational force which causes a change in rotational motion. This force is defined by linear force multiplied by a radius. Warm up A remote-controlled car's wheel accelerates at 22.4 rad/s 2. If the wheel begins with an angular speed of 10.8 rad/s, what is the wheel's angular speed after exactly three full turns? AP Physics

More information

Exam 2--PHYS 101--F17

Exam 2--PHYS 101--F17 Name: Exam 2--PHYS 0--F7 Multiple Choice Identify the choice that best completes the statement or answers the question.. A ball is thrown in the air at an angle of 30 to the ground, with an initial speed

More information

Physics 106 Sample Common Exam 2, number 2 (Answers on page 6)

Physics 106 Sample Common Exam 2, number 2 (Answers on page 6) Physics 106 Sample Common Exam 2, number 2 (Answers on page 6) Signature Name (Print): 4 Digit ID: Section: Instructions: Answer all questions. Questions 1 through 12 are multiple choice questions worth

More information

Unit 8 Notetaking Guide Torque and Rotational Motion

Unit 8 Notetaking Guide Torque and Rotational Motion Unit 8 Notetaking Guide Torque and Rotational Motion Rotational Motion Until now, we have been concerned mainly with translational motion. We discussed the kinematics and dynamics of translational motion

More information

Exam 3 PREP Chapters 6, 7, 8

Exam 3 PREP Chapters 6, 7, 8 PHY241 - General Physics I Dr. Carlson, Fall 2013 Prep Exam 3 PREP Chapters 6, 7, 8 Name TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Astronauts in orbiting satellites

More information

PHYS 1303 Final Exam Example Questions

PHYS 1303 Final Exam Example Questions PHYS 1303 Final Exam Example Questions (In summer 2014 we have not covered questions 30-35,40,41) 1.Which quantity can be converted from the English system to the metric system by the conversion factor

More information

AP Physics 1- Torque, Rotational Inertia, and Angular Momentum Practice Problems FACT: The center of mass of a system of objects obeys Newton s second law- F = Ma cm. Usually the location of the center

More information

PHY 2048 Final Exam Review DISCLAIMER - I am a student and there could potentially be errors in the solutions.

PHY 2048 Final Exam Review DISCLAIMER - I am a student and there could potentially be errors in the solutions. PHY 2048 Final Exam Review DISCLAIMER - I am a student and there could potentially be errors in the solutions. 1. A large wheel of cheese, initially at rest, accelerates at a rate of 10 rad/s^2. The radius

More information

Chapter 10 Rotational Kinematics and Energy. Copyright 2010 Pearson Education, Inc.

Chapter 10 Rotational Kinematics and Energy. Copyright 2010 Pearson Education, Inc. Chapter 10 Rotational Kinematics and Energy 10-1 Angular Position, Velocity, and Acceleration 10-1 Angular Position, Velocity, and Acceleration Degrees and revolutions: 10-1 Angular Position, Velocity,

More information

Question 1: In which one of the following situations does a car have a westward acceleration?

Question 1: In which one of the following situations does a car have a westward acceleration? Question 1: In which one of the following situations does a car have a westward acceleration? A. The car travels eastward and speeds up. B. The car starts from rest and moves toward the east. C. The car

More information

PY205N Spring The vectors a, b, and c. are related by c = a b. The diagram below that best illustrates this relationship is (a) I

PY205N Spring The vectors a, b, and c. are related by c = a b. The diagram below that best illustrates this relationship is (a) I PY205N Spring 2013 Final exam, practice version MODIFIED This practice exam is to help students prepare for the final exam to be given at the end of the semester. Please note that while problems on this

More information

Afternoon Section. Physics 1210 Exam 2 November 8, ! v = d! r dt. a avg. = v2. ) T 2! w = m g! f s. = v at v 2 1.

Afternoon Section. Physics 1210 Exam 2 November 8, ! v = d! r dt. a avg. = v2. ) T 2! w = m g! f s. = v at v 2 1. Name Physics 1210 Exam 2 November 8, 2012 Afternoon Section Please write directly on the exam and attach other sheets of work if necessary. Calculators are allowed. No notes or books may be used. Multiple-choice

More information

Chapter 8 Rotational Motion and Equilibrium

Chapter 8 Rotational Motion and Equilibrium Chapter 8 Rotational Motion and Equilibrium 8.1 Rigid Bodies, Translations, and Rotations A rigid body is an object or a system of particles in which the distances between particles are fixed (remain constant).

More information

PS 11 GeneralPhysics I for the Life Sciences

PS 11 GeneralPhysics I for the Life Sciences PS 11 GeneralPhysics I for the Life Sciences ROTATIONAL MOTION D R. B E N J A M I N C H A N A S S O C I A T E P R O F E S S O R P H Y S I C S D E P A R T M E N T F E B R U A R Y 0 1 4 Questions and Problems

More information

AP C - Webreview ch 7 (part I) Rotation and circular motion

AP C - Webreview ch 7 (part I) Rotation and circular motion Name: Class: _ Date: _ AP C - Webreview ch 7 (part I) Rotation and circular motion Multiple Choice Identify the choice that best completes the statement or answers the question. 1. 2 600 rev/min is equivalent

More information

Slide 1 / 133. Slide 2 / 133. Slide 3 / How many radians are subtended by a 0.10 m arc of a circle of radius 0.40 m?

Slide 1 / 133. Slide 2 / 133. Slide 3 / How many radians are subtended by a 0.10 m arc of a circle of radius 0.40 m? 1 How many radians are subtended by a 0.10 m arc of a circle of radius 0.40 m? Slide 1 / 133 2 How many degrees are subtended by a 0.10 m arc of a circle of radius of 0.40 m? Slide 2 / 133 3 A ball rotates

More information

Unless otherwise specified, use g = 9.80 m/s2

Unless otherwise specified, use g = 9.80 m/s2 Phy 111 Exam 2 March 10, 2015 Name Section University ID Please fill in your computer answer sheet as follows: 1) In the NAME grid, fill in your last name, leave one blank space, then your first name.

More information

Slide 2 / 133. Slide 1 / 133. Slide 3 / 133. Slide 4 / 133. Slide 5 / 133. Slide 6 / 133

Slide 2 / 133. Slide 1 / 133. Slide 3 / 133. Slide 4 / 133. Slide 5 / 133. Slide 6 / 133 Slide 1 / 133 1 How many radians are subtended by a 0.10 m arc of a circle of radius 0.40 m? Slide 2 / 133 2 How many degrees are subtended by a 0.10 m arc of a circle of radius of 0.40 m? Slide 3 / 133

More information

Circular Motion Test Review

Circular Motion Test Review Circular Motion Test Review Name: Date: 1) Is it possible for an object moving with a constant speed to accelerate? Explain. A) No, if the speed is constant then the acceleration is equal to zero. B) No,

More information

Rotational Motion Test

Rotational Motion Test Rotational Motion Test Multiple Choice: Write the letter that best answers the question. Each question is worth 2pts. 1. Angular momentum is: A.) The sum of moment of inertia and angular velocity B.) The

More information

Wiley Plus. Final Assignment (5) Is Due Today: Before 11 pm!

Wiley Plus. Final Assignment (5) Is Due Today: Before 11 pm! Wiley Plus Final Assignment (5) Is Due Today: Before 11 pm! Final Exam Review December 9, 009 3 What about vector subtraction? Suppose you are given the vector relation A B C RULE: The resultant vector

More information

PHYSICS 111 SPRING EXAM 2: March 8, 2016; 8:15-9:45 pm

PHYSICS 111 SPRING EXAM 2: March 8, 2016; 8:15-9:45 pm PHYSICS 111 SPRING 2016 EXAM 2: March 8, 2016; 8:15-9:45 pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 20 multiple-choice questions plus 1 extra credit question,

More information

Circular Motion, Pt 2: Angular Dynamics. Mr. Velazquez AP/Honors Physics

Circular Motion, Pt 2: Angular Dynamics. Mr. Velazquez AP/Honors Physics Circular Motion, Pt 2: Angular Dynamics Mr. Velazquez AP/Honors Physics Formulas: Angular Kinematics (θ must be in radians): s = rθ Arc Length 360 = 2π rads = 1 rev ω = θ t = v t r Angular Velocity α av

More information

PHYSICS 149: Lecture 21

PHYSICS 149: Lecture 21 PHYSICS 149: Lecture 21 Chapter 8: Torque and Angular Momentum 8.2 Torque 8.4 Equilibrium Revisited 8.8 Angular Momentum Lecture 21 Purdue University, Physics 149 1 Midterm Exam 2 Wednesday, April 6, 6:30

More information

Exam 2--PHYS 101-Fall 2009

Exam 2--PHYS 101-Fall 2009 ame: Class: Date: Exam 2PHYS 101Fall 2009 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Consider this figure of a roller coaster: At which of these points

More information

Exam 3--Fall 08--PHYS 101

Exam 3--Fall 08--PHYS 101 Name: Class: Date: Exam 3--Fall 08--PHYS 101 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. An object at rest begins to rotate with a constant angular

More information

PHY131H1S - Class 20. Pre-class reading quiz on Chapter 12

PHY131H1S - Class 20. Pre-class reading quiz on Chapter 12 PHY131H1S - Class 20 Today: Gravitational Torque Rotational Kinetic Energy Rolling without Slipping Equilibrium with Rotation Rotation Vectors Angular Momentum Pre-class reading quiz on Chapter 12 1 Last

More information

EXAM-3 PHYS 201 (Fall 2006), 10/31/06

EXAM-3 PHYS 201 (Fall 2006), 10/31/06 EXAM-3 PHYS 201 (Fall 2006), 10/31/06 Name: Signature: Duration: 75 minutes Show all your work for full/partial credit! Include the correct units in your final answers for full credit! Unless otherwise

More information

10/13/11. How many degrees in 1 radian?

10/13/11. How many degrees in 1 radian? Reading quiz! How many degrees in 1 radian? Physics 101 Tuesday 10/13/11 Class 15" Chapter 9.8 10.4" Rocket problems" Angular position, velocity and acc" Rotational Kinematics and Connection with linear

More information

Circular Motion & Gravitation MC Question Database

Circular Motion & Gravitation MC Question Database (Questions #4,5,6,27,37,38,42 and 58 each have TWO correct answers.) 1) A record player has four coins at different distances from the center of rotation. Coin A is 1 cm away, Coin B is 2 cm away. Coin

More information

Chapter 8. Rotational Equilibrium and Rotational Dynamics. 1. Torque. 2. Torque and Equilibrium. 3. Center of Mass and Center of Gravity

Chapter 8. Rotational Equilibrium and Rotational Dynamics. 1. Torque. 2. Torque and Equilibrium. 3. Center of Mass and Center of Gravity Chapter 8 Rotational Equilibrium and Rotational Dynamics 1. Torque 2. Torque and Equilibrium 3. Center of Mass and Center of Gravity 4. Torque and angular acceleration 5. Rotational Kinetic energy 6. Angular

More information

Chapter 8 Rotational Motion

Chapter 8 Rotational Motion Chapter 8 Rotational Motion Chapter 8 Rotational Motion In this chapter you will: Learn how to describe and measure rotational motion. Learn how torque changes rotational velocity. Explore factors that

More information

Q2. A machine carries a 4.0 kg package from an initial position of d ˆ. = (2.0 m)j at t = 0 to a final position of d ˆ ˆ

Q2. A machine carries a 4.0 kg package from an initial position of d ˆ. = (2.0 m)j at t = 0 to a final position of d ˆ ˆ Coordinator: Dr. S. Kunwar Monday, March 25, 2019 Page: 1 Q1. An object moves in a horizontal circle at constant speed. The work done by the centripetal force is zero because: A) the centripetal force

More information

5/6/2018. Rolling Without Slipping. Rolling Without Slipping. QuickCheck 12.10

5/6/2018. Rolling Without Slipping. Rolling Without Slipping. QuickCheck 12.10 Rolling Without Slipping Rolling is a combination of rotation and translation. For an object that rolls without slipping, the translation of the center of mass is related to the angular velocity by Slide

More information

Physics 106 Common Exam 2: March 5, 2004

Physics 106 Common Exam 2: March 5, 2004 Physics 106 Common Exam 2: March 5, 2004 Signature Name (Print): 4 Digit ID: Section: Instructions: nswer all questions. Questions 1 through 10 are multiple choice questions worth 5 points each. You may

More information

Midterm 3 Thursday April 13th

Midterm 3 Thursday April 13th Welcome back to Physics 215 Today s agenda: Angular momentum Rolling without slipping Midterm Review Physics 215 Spring 2017 Lecture 12-2 1 Midterm 3 Thursday April 13th Material covered: Ch 9 Ch 12 Lectures

More information

PHYSICS I RESOURCE SHEET

PHYSICS I RESOURCE SHEET PHYSICS I RESOURCE SHEET Cautions and Notes Kinematic Equations These are to be used in regions with constant acceleration only You must keep regions with different accelerations separate (for example,

More information

Physics 110 Third Hour Exam

Physics 110 Third Hour Exam Physics 110 Third Hour Exam Name: Answer Key Part I Short answers: Answer all questions with only one response in the margin.(3 pts each for a total of 30 pts). Note: for partial credit write a clear phrase

More information

r r Sample Final questions for PS 150

r r Sample Final questions for PS 150 Sample Final questions for PS 150 1) Which of the following is an accurate statement? A) Rotating a vector about an axis passing through the tip of the vector does not change the vector. B) The magnitude

More information

Moment of Inertia Race

Moment of Inertia Race Review Two points, A and B, are on a disk that rotates with a uniform speed about an axis. Point A is closer to the axis than point B. Which of the following is NOT true? 1. Point B has the greater tangential

More information

Advanced Higher Physics. Rotational motion

Advanced Higher Physics. Rotational motion Wallace Hall Academy Physics Department Advanced Higher Physics Rotational motion Problems AH Physics: Rotational Motion 1 2013 Data Common Physical Quantities QUANTITY SYMBOL VALUE Gravitational acceleration

More information

O Which force produces the greatest torque about the point O (marked by the blue dot)?

O Which force produces the greatest torque about the point O (marked by the blue dot)? Q10.1 The four forces shown all have the same magnitude: F 1 = F 2 = F 3 = F 4. F 1 F 3 O Which force produces the greatest torque about the point O (marked by the blue dot)? F 2 F 4 A. F 1 B. F 2 C. F

More information

Rotational Motion Examples:

Rotational Motion Examples: Rotational Motion Examples: 1. A 60. cm diameter wheel rotates through 50. rad. a. What distance will it move? b. How many times will the wheel rotate in this time? 2. A saw blade is spinning at 2000.

More information

Chapter 8 Lecture. Pearson Physics. Rotational Motion and Equilibrium. Prepared by Chris Chiaverina Pearson Education, Inc.

Chapter 8 Lecture. Pearson Physics. Rotational Motion and Equilibrium. Prepared by Chris Chiaverina Pearson Education, Inc. Chapter 8 Lecture Pearson Physics Rotational Motion and Equilibrium Prepared by Chris Chiaverina Chapter Contents Describing Angular Motion Rolling Motion and the Moment of Inertia Torque Static Equilibrium

More information

Physics for Scientist and Engineers third edition Rotational Motion About a Fixed Axis Problems

Physics for Scientist and Engineers third edition Rotational Motion About a Fixed Axis Problems A particular bird s eye can just distinguish objects that subtend an angle no smaller than about 3 E -4 rad, A) How many degrees is this B) How small an object can the bird just distinguish when flying

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Common Quiz Mistakes / Practice for Final Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A ball is thrown directly upward and experiences

More information

Jordan University of Science & Technology PHYS 101A Final exam First semester 2007

Jordan University of Science & Technology PHYS 101A Final exam First semester 2007 Student Name Student ID Jordan University of Science & Technology PHYS 101A Final exam First semester 2007 Approximate your answer to those given for each question. Use this table to fill in your answer

More information

Sample Physics Placement Exam

Sample Physics Placement Exam Sample Physics 130-1 Placement Exam A. Multiple Choice Questions: 1. A cable is used to take construction equipment from the ground to the top of a tall building. During the trip up, when (if ever) is

More information

ROTATIONAL DYNAMICS AND STATIC EQUILIBRIUM

ROTATIONAL DYNAMICS AND STATIC EQUILIBRIUM ROTATIONAL DYNAMICS AND STATIC EQUILIBRIUM Chapter 11 Units of Chapter 11 Torque Torque and Angular Acceleration Zero Torque and Static Equilibrium Center of Mass and Balance Dynamic Applications of Torque

More information

1 of 5 7/13/2015 9:03 AM HW8 due 6 pm Day 18 (Wed. July 15) (7426858) Question 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1. Question Details OSColPhys1 10.P.028.WA. [2611790] The specifications for

More information

Chapter 9 TORQUE & Rotational Kinematics

Chapter 9 TORQUE & Rotational Kinematics Chapter 9 TORQUE & Rotational Kinematics This motionless person is in static equilibrium. The forces acting on him add up to zero. Both forces are vertical in this case. This car is in dynamic equilibrium

More information

Physics 23 Exam 3 April 2, 2009

Physics 23 Exam 3 April 2, 2009 1. A string is tied to a doorknob 0.79 m from the hinge as shown in the figure. At the instant shown, the force applied to the string is 5.0 N. What is the torque on the door? A) 3.3 N m B) 2.2 N m C)

More information

Exercise Torque Magnitude Ranking Task. Part A

Exercise Torque Magnitude Ranking Task. Part A Exercise 10.2 Calculate the net torque about point O for the two forces applied as in the figure. The rod and both forces are in the plane of the page. Take positive torques to be counterclockwise. τ 28.0

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Two men, Joel and Jerry, push against a wall. Jerry stops after 10 min, while Joel is

More information

Slide 1 / 37. Rotational Motion

Slide 1 / 37. Rotational Motion Slide 1 / 37 Rotational Motion Slide 2 / 37 Angular Quantities An angle θ can be given by: where r is the radius and l is the arc length. This gives θ in radians. There are 360 in a circle or 2π radians.

More information

PHYSICS. Chapter 12 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT Pearson Education, Inc.

PHYSICS. Chapter 12 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT Pearson Education, Inc. PHYSICS FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E Chapter 12 Lecture RANDALL D. KNIGHT Chapter 12 Rotation of a Rigid Body IN THIS CHAPTER, you will learn to understand and apply the physics

More information

On my honor, I have neither given nor received unauthorized aid on this examination.

On my honor, I have neither given nor received unauthorized aid on this examination. Instructor(s): Profs. D. Reitze, H. Chan PHYSICS DEPARTMENT PHY 2053 Exam 2 April 2, 2009 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized aid on this examination.

More information

Physics A - PHY 2048C

Physics A - PHY 2048C Physics A - PHY 2048C and 11/15/2017 My Office Hours: Thursday 2:00-3:00 PM 212 Keen Building Warm-up Questions 1 Did you read Chapter 12 in the textbook on? 2 Must an object be rotating to have a moment

More information

Exam 3--PHYS 101-WWP--Fall Chapters 8, 9, & 10

Exam 3--PHYS 101-WWP--Fall Chapters 8, 9, & 10 Class: Date: Exam 3--PHYS 101-WWP--Fall 2013--Chapters 8, 9, & 10 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A vault is opened by applying a force

More information

A uniform rod of length L and Mass M is attached at one end to a frictionless pivot. If the rod is released from rest from the horizontal position,

A uniform rod of length L and Mass M is attached at one end to a frictionless pivot. If the rod is released from rest from the horizontal position, A dentist s drill starts from rest. After 3.20 s of constant angular acceleration, it turns at a rate of 2.51 10 4 rev/min. (a) Find the drill s angular acceleration. (b) Determine the angle (in radians)

More information

AP Physics QUIZ Chapters 10

AP Physics QUIZ Chapters 10 Name: 1. Torque is the rotational analogue of (A) Kinetic Energy (B) Linear Momentum (C) Acceleration (D) Force (E) Mass A 5-kilogram sphere is connected to a 10-kilogram sphere by a rigid rod of negligible

More information

Angular Speed and Angular Acceleration Relations between Angular and Linear Quantities

Angular Speed and Angular Acceleration Relations between Angular and Linear Quantities Angular Speed and Angular Acceleration Relations between Angular and Linear Quantities 1. The tires on a new compact car have a diameter of 2.0 ft and are warranted for 60 000 miles. (a) Determine the

More information