FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Saturday, 14 December 2013, 1PM to 4 PM, AT 1003

Size: px
Start display at page:

Download "FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Saturday, 14 December 2013, 1PM to 4 PM, AT 1003"

Transcription

1 FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Saturday, 14 December 2013, 1PM to 4 PM, AT 1003 NAME: STUDENT ID: INSTRUCTION 1. This exam booklet has 14 pages. Make sure none are missing 2. There is an equation sheet on page 14. You may tear the equation sheet off. 3. There are two parts to the exam: Part I has twelve multiple choice questions (1 to 12), where you must circle the one correct answer (a,b,c,d,e). Rough work can be done on the backside of the sheet opposite the question page Part II includes nine full-answer questions (13 to 21). Do all nine questions. All works must be done on the blank space below the questions. If you run out of space, you may write on the backside of the sheet opposite the question page. 4. Calculators are allowed 1

2 PART I: MULTIPLE CHOICE QUESTIONS (question 1 to 12) For each question circle the one correct answer (a,b,c,d or e). 1. (2.5 point) Which of the following five acceleration versus time graphs is correct for an object moving in a straight line at a constant velocity of 20 m/s? a) I b) II c) III d) IV e) V 2. (2.5 point) The coordinate of an object is given as a function of time by x = 4t 2 3t 3, where x is in meters and t is in seconds. Its average acceleration over the interval from t = 0 to t = 2 s is: a) -13 m/s 2 b) 4 m/s 2 c) 10 m/s 2 d) -10 m/s 2 e) -8 m/s 2 3. (2.5 point) A cannon fires a projectile as shown. The dashed line shows the trajectory in the absence of gravity; points MNOP correspond to the position of the projectile at one second intervals. If g = 10 m/s 2, the lengths X,Y,Z are: A) 5 m, 20 m, 45 m B) 0.2 m, 0.8 m, 1.8 m C) 10 m, 20 m, 30 m D) 5 m, 10 m, 15 m E) 10 m, 40 m, 90 m 4. (2.5 point) A horizontal force of 12 N pushes a 0.50-kg book against a vertical wall. The book is initially at rest. If the coefficients of friction are µ s = 0.60 and µ k = 0.50 which of the following is true. A) The block will start moving and accelerate B) If started moving downward, the block will accelerate C) The frictional force is 4.9 N D) The frictional force is 7.2 N E) The normal force is 4.9 N 2

3 5. (2.5 point) Three blocks (A, B, C), each having the same mass M, are connected by strings as shown. Block C is pulled to the right by a force that causes the entire system to accelerate. Neglecting friction, the net force acting on block B is: a) 0 b)! F / 3 c)! F / 2 d) 2! F / 3 e)! F 6. (2.5 point) A toy cork gun contains a spring whose spring constant is 10.0 N/m. The spring is compressed 5.00 cm and then used to propel a 6.00-g cork. The cork, however, sticks to the spring for 1.00 cm beyond its unstretched length before separation occurs. The muzzle velocity of this cork is: A) 1.02 m/s B) 1.41 m/s C) 2.00 m/s D) 2.04 m/s E) 4.00 m/s 7. (2.5 points) A 700-N man jumps out of a window into a fire net 10 m below. The net stretches 2 m before bringing the man to rest and tossing him back into the air. The maximum potential energy of the net, compared to its unstretched potential energy, is: A) 300 J B) 710 J C) 850 J D) 7000 J E) 8400 J 8. (2.5 points) Two boys with masses of 40 kg and 60 kg stand on a horizontal frictionless surface holding the ends of a light 10-m long rod. The boys pull themselves together along the rod. When they meet the 40-kg boy will have moved what distance? a) 4 m b) 5 m c) 6 m d) 10 m e) need to know the forces they exert 9. (2.5 points) A 2.5-kg stone is released from rest and falls toward Earth. After 4.0 s, the magnitude of its momentum is: a) 98 kg m/s b) 78 kg m/s c) 39 kg m/s d) 24 kg m/s e) 0 kg m/s 10. (2.5 points) At time t = 0 s, a wheel has an angular displacement of zero radians and an angular velocity of +18 rad/s. The wheel has a constant acceleration of rad/s 2. In this situation, the time t (after t = 0 s), at which the kinetic energy of the wheel is twice the initial value, is closest to: a) 46 s b) 57 s c) 69 s d) 33 s e) 79 s 11. (2.5 points) Which of the following statement regarding angular momentum is correct? a) A particle moving in a straight line with constant speed necessarily has zero angular momentum. b) If the torque acting on a particle is zero about an arbitrary origin, then the angular momentum of the particle is also zero about that origin. c) The angular momentum of a moving particle depends on the specific origin with respect to which the angular momentum is calculated. d) If the speed of a particle is constant, then the angular momentum of the particle about any specific origin must also be constant. e) Consider a planet moving in a circular orbit about a star. Even if the planet is spinning it is not possible for its total angular momentum to be zero. 3

4 12. (2.5 points) A light triangular plate OAB is in a horizontal plane. Three forces, F 1 = 3 N, F 2 = 1 N, and F 3 = 9 N, act on the plate, which is pivoted about a vertical axes through point O. In Figure below, the magnitude of the torque due to force F 1 about the axis through point O is closest to: a) 1.1 N m b) 1.4 N m c) 0.90 N m d) 1.8 N m e) 1.6 N m PART II: FULL ANSWER QUESTIONS (question 13 to 21) Do all nine questions on the provided area below the questions. Show all works. 13. (10 points) The position of a particle moving in an xy plane is given by! r = ( 5t 3! 6t)î + ( 5! 2t 4 ) ĵ, with r! in meters and t in seconds. a) In unit-vector notation, calculate the position, r!, velocity, v!, and acceleration, a!, at t = 3 s. b) What is the angle between the positive direction of the +x axis and a line tangent (i.e.! v ) to the particle's path at t = 3 s? Give your answer in the range of (-180 o ; 180 o ). 4

5 14. (10 points) In the figure, a stone is projected at a cliff of height h with an initial speed of 46.0 m/s directed at an angle θ 0 = 59.0 above the horizontal. The stone strikes at A, 5.85 s after launching. a) Find the height, h, of the cliff. b) Find the speed of the stone just before impact at A. c) Find the maximum height reached, H, above the ground. What is the speed of the stone at the maximum height? 5

6 15. (10 points) A loaded penguin sled weighing 65 N rests on a plane inclined at angle θ = 23 to the horizontal (see the figure). Between the sled and the plane, the coefficient of static friction is 0.26, and the coefficient of kinetic friction is a) Draw free-body diagrams that includes all forces on the sled. Assume that the magnitude of the force! F is enough to accelerate the sled up the incline. b) Assume that the sled is initially at rest, what is the minimum magnitude of the force! F that will accelerate the sled up the incline? c) For the force calculated in part b, what is the acceleration of the box? 6

7 16. (10 points) A 6.6 kg brick moves along an x axis. Its acceleration as a function of its position is shown in the figure below. a) Use graphical integration to calculate the net work done on the brick as it moves from x = 2m to x = 8m. b) If the speed of the brick is 2.2 m/s when it is at x = 2m, calculate its speed when it is at x = 8m. 7

8 17. (10 points) In the figure, projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus. The alpha particle is scattered at angle θ 1 = 69.0 and the oxygen nucleus recoils with speed m/s and at angle θ 2 = Alpha Particle mass m 1 = 4u = 6.68! 10 "27 kg Oxygen mass m 2 = 16u = 2.672! 10 "26 kg 1u! atomic mass unit = 1.67 " 10 #27 kg a) Using conservation of momentum calculate the initial and final speed of the alpha particle. b) Calculate the change in kinetic energy,!k. Is the collision elastic? Briefly explain. 8

9 18. (10 points) In the figure below, a lawn roller in the form of a solid cylinder ( I = 1 2 MR2 ) is being pulled horizontally by a horizontal force, B, applied to an axle through the center of the roller, as shown in the sketch. The roller has radius R = 0.68 meters and mass M = 68 kg. The roller rolls without slipping on a rough surface with µ s = 0.3, and has a linear acceleration of a = 2.5 m. After it rolls 1.0 m it falls down an icy slope. 2 s Rough surface µ > m icy smooth slope (no friction) h = 3.0 m a) For the part when the roller is still on the flat surface. Draw a free-body diagram that includes all forces acting on the roller. The diagram must show the direction of the linear and angular acceleration. You must briefly explain the reason for the direction of force of friction, as well as the reason why you use static and not kinetic friction. Use Newton s law for translation and rotation to find the magnitude of the force B. b) Using the diagram from part a) determine the minimum coefficient of static friction, µ s, in order for the roller to roll without slipping. Your answer must be smaller than 0.3, which is the value for the surfaces of the problem. 9

10 18. Continued c) Find the linear and angular speed of the roller at the edge of the slope. Assume roller starts from rest without any rotational speed. Assume that initially, v 0 = 0 and! 0 = 0. d) Use conservation of energy to find the linear (v) and angular speed (ω) when it reaches the bottom of the slope h = 3.0 m below. Assume that after it reaches the edge, there is no force acting on it (i.e. B = 0). 19. (10 points) In the figure below, box A and B are connected by a rope-pulley system. Box A moves to the right, and the rope moves over the pulley without slipping, and the pulley has a clockwise angular velocity,!. The data are shown in the figure. v T A T A ω mass of pulley is M P = 3.0 kg f m A = 10.0 kg T B I = 1 2 M PR 2 solid cylindrical pulley Coefficient of Friction µ k = 0.5 T B R = 0.2 m, radius of cylinder m B =4.0kg a) Draw a free body diagram of the boxes showing all the forces acting on it. Draw a free body diagram of the pulley showing all the forces (including those due to the hinge) acting on it. The diagrams should include the direction of linear acceleration, a, of m A and m B, and the angular acceleration α of the pulley. 10

11 19. Continued b) Use Newton s law for translation and rotation to find the linear acceleration (magnitude and direction)! a of m A and m B, and the angular acceleration (magnitude and sense of rotation), α, of the pulley. The no-slip condition is useful. Assume the rope does not slip on the pulley. Note thatt A! T B. Also you may want to assume that Box B accelerates up. 20. (10 points) In figure below, a carousel has a radius of 3.0 m and a moment of inertia of I C = 8000kg m 2, for rotation about axis perpendicular to the its center. The carousel is rotating unpowered and without friction with an angular velocity of 1.2 rad/s. An 80-kg man runs with a velocity of 5.0 m/s, on a line tangent to the rim of the carousel, overtaking it. The man runs onto the carousel and grabs hold of a pole on the rim. +y +x Direction perpendicular to x-y plane! indicates +z out of the page! indicates z into page a) Before the collision, what is the magnitude of the angular momentum of the rotating carousel,! L C, with respect to the center of the carousel? What is the direction of! L C? Directions (+x, +y, +z, -x, -y, -z) are as indicated in the above figure. 11

12 20 continued b) Before the collision, what is the magnitude of the angular moment of the running 80-kg man,! L M, with respect to the center of the carousel? What is the direction of! L M? c) After the collision when the man is on the carousel, what is the magnitude of the final angular velocity of the carousel (with the man on it),! fc? What is the direction of the final angular velocity!! fc? Note: I total = I C + mr (10 points) A diving board of length 3.00 m is supported at a point (P) 1.00 m from the end, and a diver weighing 520 N stands at the free end. The diving board is of uniform cross section and weighs 300 N. 12

13 21 continued a) Find the force of support at point P Hint: Do the torque part first! b) Find the force of support at point L, at the left-hand end. 13

14 Useful Equations Kinematics x = x 0 + v 0 x t + (1 / 2)a x t 2, v x = v 0 x + a x t, v 2 2 x = v 0 x + 2a x ( x! x 0 ), v x = dx / dt ; a x = dv x / dt ;! v = v x î + v y ĵ + v z ˆk ;! a = ax î + a y ĵ + a z ˆk ; average speed savg = (total distance)/(total ( ) / ( t 2! t 1 ), average acceleration (x-com) time); average velocity (x-com) v avg,x = x 2! x 1!! a avg,x = ( v 2 x! v 1x ) / ( t 2! t 1 ). Newton s Laws F net =! F i = 0 (Object in equilibrium); F! net = m a! (Nonzero net force); Weight: F g = mg, g = 9.8m / s 2 ; Centripetal acceleration a rad = v2 r ; Friction f s! µ s F N, f k = µ k F N. Hooke s Law F x =!kx. Work and Energy W = F! d! = ( F cos! )d = F d ; W net =!K = (1 / 2)mv 2 f " (1 / 2)mv 2 net i (valid if W is the net or total work done on the object);w grav =!mg y f! y i ( ) (elastic work) W el =! (1 / 2)kx f 2! (1 / 2)kx i 2 ( ) (gravitational work), Conservation of Mechanical Energy (only conservative forces are present) E mech = U + K W net =!"U =! U 2! U 1 ( ) = "K = K 2! K 1,U 1 + K 1 = U 2 + K 2,U grav = mgy,u el = (1 / 2)kx 2 Non-Conservative Forces W external =!E mech +!E th (W ext work done by external forces, and we set!e int = 0 ), where!e th = f k d (thermal energy or negative work done by friction). Using!E mech =!U +!K = U f " U i ( ) + ( K f " K i ), U f + K f = U i + K i + W ext! f k d x f Work due to variable force 1D: W =! F x dx " area under F x vs. x, from x = x i to x f x i POWER: average P avg = W /!t = Fd /!t = Fv avg ; instantaneous P = F! v! = Fvcos!! Momentum: P = m v!, J! t 2! =! Fdt = F! av t 2 " t 1 t 1 ( ), J! =! P! = P! 2 " P! 1. Newton s Law in Terms of Momentum F! net = d p! / dt. For F! net = 0, d p!! / dt = 0 gives momentum conservation: P! constant. Rotational Kinematics Equations:! avg = " 2 # " 1 ( ) / ( t 2 # t 1 ),! avg = (" 2 # " 1 ) / ( t 2 # t 1 ) ( ) For! z = constant,! =! 0 + "t,! =! 0 + " 0 t + (1 / 2)#t 2,! 2 =! " # $ # 0 Linear and angular variables: s = r!, v = r!, a tan = R! (tangential), a rad = v 2 / r =! 2 r (radial) 2 Moment of Inertia and Rotational Kinetic Energy I =! m i r i, K rot = (1/ 2)I! 2. Center of Mass (COM) r!! com =! m i ri /! m i. Torque and Newton s Laws of Rotating Body: rigid body! = Fr ",! net = "! ext i = I#, r! -moment arm about axis; point! = r! " F! about origin O. 2 Combined Rotation and Translation of a Rigid Body K = (1/ 2)Mv! com N i=1 + (1/ 2)I com! 2, F net = M! a com,!! net = I com! ". Rolling without slipping s = R!, vcom = R!, a com = R!. Angular Momentum L = I! (solid object) where I is the moment of inertia about the axis of rotation.! L =! r!! p " L = mvr sin#, valid for point particle about an origin O. Newton s Second Law of rigid body in terms of angular momentum!! net = "!! i ext ( ) = 0 and angular momentum is conserved,! L! constant. = ( d L! / dt). For! net = 0, d L! / dt Equilibrium conditions F!! ezt net =! F i = 0 about all object,! ext net = "! i = 0 about any point. 14

FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Thursday, 11 December 2014, 6 PM to 9 PM, Field House Gym

FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Thursday, 11 December 2014, 6 PM to 9 PM, Field House Gym FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Thursday, 11 December 2014, 6 PM to 9 PM, Field House Gym NAME: STUDENT ID: INSTRUCTION 1. This exam booklet has 13 pages. Make sure none are missing 2.

More information

FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Monday, 14 December 2015, 6 PM to 9 PM, Field House Gym

FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Monday, 14 December 2015, 6 PM to 9 PM, Field House Gym FALL TERM EXAM, PHYS 111, INTRODUCTORY PHYSICS I Monday, 14 December 015, 6 PM to 9 PM, Field House Gym NAME: STUDENT ID: INSTRUCTION 1. This exam booklet has 13 pages. Make sure none are missing. There

More information

PHYSICS 221, FALL 2011 EXAM #2 SOLUTIONS WEDNESDAY, NOVEMBER 2, 2011

PHYSICS 221, FALL 2011 EXAM #2 SOLUTIONS WEDNESDAY, NOVEMBER 2, 2011 PHYSICS 1, FALL 011 EXAM SOLUTIONS WEDNESDAY, NOVEMBER, 011 Note: The unit vectors in the +x, +y, and +z directions of a right-handed Cartesian coordinate system are î, ĵ, and ˆk, respectively. In this

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

FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Saturday, 14 December 2013, 1PM to 4 PM, AT 1003

FALL TERM EXAM, PHYS 1211, INTRODUCTORY PHYSICS I Saturday, 14 December 2013, 1PM to 4 PM, AT 1003 FALL TERM EXAM, PHYS 111, INTRODUCTORY PHYSICS I Saturday, 14 December 013, 1PM to 4 PM, AT 1003 NAME: STUDENT ID: INSTRUCTION 1. Thi exam booklet ha 14 page. Make ure none are miing. There i an equation

More information

y(t) = y 0 t! 1 2 gt 2. With y(t final ) = 0, we can solve this for v 0 : v 0 A ĵ. With A! ĵ =!2 and A! = (2) 2 + (!

y(t) = y 0 t! 1 2 gt 2. With y(t final ) = 0, we can solve this for v 0 : v 0 A ĵ. With A! ĵ =!2 and A! = (2) 2 + (! 1. The angle between the vector! A = 3î! 2 ĵ! 5 ˆk and the positive y axis, in degrees, is closest to: A) 19 B) 71 C) 90 D) 109 E) 161 The dot product between the vector! A = 3î! 2 ĵ! 5 ˆk and the unit

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

PHYSICS 221, FALL 2010 EXAM #1 Solutions WEDNESDAY, SEPTEMBER 29, 2010

PHYSICS 221, FALL 2010 EXAM #1 Solutions WEDNESDAY, SEPTEMBER 29, 2010 PHYSICS 1, FALL 010 EXAM 1 Solutions WEDNESDAY, SEPTEMBER 9, 010 Note: The unit vectors in the +x, +y, and +z directions of a right-handed Cartesian coordinate system are î, ĵ, and ˆk, respectively. In

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

Physics UCSB TR 2:00-3:15 lecture Final Exam Wednesday 3/17/2010

Physics UCSB TR 2:00-3:15 lecture Final Exam Wednesday 3/17/2010 Physics @ UCSB TR :00-3:5 lecture Final Eam Wednesday 3/7/00 Print your last name: Print your first name: Print your perm no.: INSTRUCTIONS: DO NOT START THE EXAM until you are given instructions to do

More information

Exam 3 Practice Solutions

Exam 3 Practice Solutions Exam 3 Practice Solutions Multiple Choice 1. A thin hoop, a solid disk, and a solid sphere, each with the same mass and radius, are at rest at the top of an inclined plane. If all three are released at

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

PHYSICS 221, FALL 2009 EXAM #1 SOLUTIONS WEDNESDAY, SEPTEMBER 30, 2009

PHYSICS 221, FALL 2009 EXAM #1 SOLUTIONS WEDNESDAY, SEPTEMBER 30, 2009 PHYSICS 221, FALL 2009 EXAM #1 SOLUTIONS WEDNESDAY, SEPTEMBER 30, 2009 Note: The unit vectors in the +x, +y, and +z directions of a right-handed Cartesian coordinate system are î, ĵ, and ˆk, respectively.

More information

PHYSICS 221 SPRING 2013

PHYSICS 221 SPRING 2013 PHYSICS 221 SPRING 2013 EXAM 2: April 4, 2013 8:15-10:15pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 25 multiple-choice questions plus 2 extra credit questions,

More information

PHYSICS 221 SPRING 2014

PHYSICS 221 SPRING 2014 PHYSICS 221 SPRING 2014 EXAM 2: April 3, 2014 8:15-10:15pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 25 multiple-choice questions plus 2 extra credit questions,

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

is acting on a body of mass m = 3.0 kg and changes its velocity from an initial

is acting on a body of mass m = 3.0 kg and changes its velocity from an initial PHYS 101 second major Exam Term 102 (Zero Version) Q1. A 15.0-kg block is pulled over a rough, horizontal surface by a constant force of 70.0 N acting at an angle of 20.0 above the horizontal. The block

More information

Mechanics II. Which of the following relations among the forces W, k, N, and F must be true?

Mechanics II. Which of the following relations among the forces W, k, N, and F must be true? Mechanics II 1. By applying a force F on a block, a person pulls a block along a rough surface at constant velocity v (see Figure below; directions, but not necessarily magnitudes, are indicated). Which

More information

Solution Only gravity is doing work. Since gravity is a conservative force mechanical energy is conserved:

Solution Only gravity is doing work. Since gravity is a conservative force mechanical energy is conserved: 8) roller coaster starts with a speed of 8.0 m/s at a point 45 m above the bottom of a dip (see figure). Neglecting friction, what will be the speed of the roller coaster at the top of the next slope,

More information

PHYSICS 218 Exam 3 Fall, 2013

PHYSICS 218 Exam 3 Fall, 2013 PHYSICS 218 Exam 3 Fall, 2013 Wednesday, November 20, 2013 Please read the information on the cover page BUT DO NOT OPEN the exam until instructed to do so! Name: Signature: Student ID: E-mail: Section

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

Physics 53 Summer Final Exam. Solutions

Physics 53 Summer Final Exam. Solutions Final Exam Solutions In questions or problems not requiring numerical answers, express the answers in terms of the symbols given, and standard constants such as g. If numbers are required, use g = 10 m/s

More information

Name (please print): UW ID# score last first

Name (please print): UW ID# score last first Name (please print): UW ID# score last first Question I. (20 pts) Projectile motion A ball of mass 0.3 kg is thrown at an angle of 30 o above the horizontal. Ignore air resistance. It hits the ground 100

More information

Solution to phys101-t112-final Exam

Solution to phys101-t112-final Exam Solution to phys101-t112-final Exam Q1. An 800-N man stands halfway up a 5.0-m long ladder of negligible weight. The base of the ladder is.0m from the wall as shown in Figure 1. Assuming that the wall-ladder

More information

Physics for Scientists and Engineers 4th Edition, 2017

Physics for Scientists and Engineers 4th Edition, 2017 A Correlation of Physics for Scientists and Engineers 4th Edition, 2017 To the AP Physics C: Mechanics Course Descriptions AP is a trademark registered and/or owned by the College Board, which was not

More information

Physics 1 Second Midterm Exam (AM) 2/25/2010

Physics 1 Second Midterm Exam (AM) 2/25/2010 Physics Second Midterm Eam (AM) /5/00. (This problem is worth 40 points.) A roller coaster car of m travels around a vertical loop of radius R. There is no friction and no air resistance. At the top of

More information

PHYS 124 Section A1 Mid-Term Examination Spring 2006 SOLUTIONS

PHYS 124 Section A1 Mid-Term Examination Spring 2006 SOLUTIONS PHYS 14 Section A1 Mid-Term Examination Spring 006 SOLUTIONS Name Student ID Number Instructor Marc de Montigny Date Monday, May 15, 006 Duration 60 minutes Instructions Items allowed: pen or pencil, calculator

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

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

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

Use the following to answer question 1:

Use the following to answer question 1: Use the following to answer question 1: On an amusement park ride, passengers are seated in a horizontal circle of radius 7.5 m. The seats begin from rest and are uniformly accelerated for 21 seconds to

More information

PHYSICS 221 SPRING EXAM 2: March 30, 2017; 8:15pm 10:15pm

PHYSICS 221 SPRING EXAM 2: March 30, 2017; 8:15pm 10:15pm PHYSICS 221 SPRING 2017 EXAM 2: March 30, 2017; 8:15pm 10:15pm Name (printed): Recitation Instructor: Section # Student ID# INSTRUCTIONS: This exam contains 25 multiple-choice questions plus 2 extra credit

More information

8.012 Physics I: Classical Mechanics Fall 2008

8.012 Physics I: Classical Mechanics Fall 2008 MIT OpenCourseWare http://ocw.mit.edu 8.012 Physics I: Classical Mechanics Fall 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. MASSACHUSETTS INSTITUTE

More information

Write your name legibly on the top right hand corner of this paper

Write your name legibly on the top right hand corner of this paper NAME Phys 631 Summer 2007 Quiz 2 Tuesday July 24, 2007 Instructor R. A. Lindgren 9:00 am 12:00 am Write your name legibly on the top right hand corner of this paper No Books or Notes allowed Calculator

More information

Physics 121, Final Exam Do not turn the pages of the exam until you are instructed to do so.

Physics 121, Final Exam Do not turn the pages of the exam until you are instructed to do so. , Final Exam Do not turn the pages of the exam until you are instructed to do so. You are responsible for reading the following rules carefully before beginning. Exam rules: You may use only a writing

More information

Two-Dimensional Rotational Kinematics

Two-Dimensional Rotational Kinematics Two-Dimensional Rotational Kinematics Rigid Bodies A rigid body is an extended object in which the distance between any two points in the object is constant in time. Springs or human bodies are non-rigid

More information

Page 2 (20) Page 3 (12) Page 4 (14) Page 5 (14) Total (60) PHYSICS 11 (Fall 2003) Exam 3. Elementary Physics November 21, 2003 SCORE BOX

Page 2 (20) Page 3 (12) Page 4 (14) Page 5 (14) Total (60) PHYSICS 11 (Fall 2003) Exam 3. Elementary Physics November 21, 2003 SCORE BOX INSTRUCTIONS: Except for the multiple choice questions 1 5, you must show all your work. An answer will not be enough; understanding must be demonstrated as well. This can take the form of a clear calculation,

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

Practice Test for Midterm Exam

Practice Test for Midterm Exam A.P. Physics Practice Test for Midterm Exam Kinematics 1. Which of the following statements are about uniformly accelerated motion? Select two answers. a) If an object s acceleration is constant then it

More information

Physics Exam 2 October 11, 2007

Physics Exam 2 October 11, 2007 INSTRUCTIONS: Write your NAME on the front of the blue exam booklet. The exam is closed book, and you may have only pens/pencils and a calculator (no stored equations or programs and no graphing). Show

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

8.012 Physics I: Classical Mechanics Fall 2008

8.012 Physics I: Classical Mechanics Fall 2008 MIT OpenCourseWare http://ocw.mit.edu 8.012 Physics I: Classical Mechanics Fall 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. MASSACHUSETTS INSTITUTE

More information

Kinematics (special case) Dynamics gravity, tension, elastic, normal, friction. Energy: kinetic, potential gravity, spring + work (friction)

Kinematics (special case) Dynamics gravity, tension, elastic, normal, friction. Energy: kinetic, potential gravity, spring + work (friction) Kinematics (special case) a = constant 1D motion 2D projectile Uniform circular Dynamics gravity, tension, elastic, normal, friction Motion with a = constant Newton s Laws F = m a F 12 = F 21 Time & Position

More information

( ) ( ) A i ˆj. What is the unit vector  that points in the direction of A? 1) The vector A is given by = ( 6.0m ) ˆ ( 8.0m ) Solution A D) 6 E) 6

( ) ( ) A i ˆj. What is the unit vector  that points in the direction of A? 1) The vector A is given by = ( 6.0m ) ˆ ( 8.0m ) Solution A D) 6 E) 6 A i ˆj. What is the unit vector  that points in the direction of A? 1) The vector A is given b ( 6.m ) ˆ ( 8.m ) A ˆ i ˆ ˆ j A ˆ i ˆ ˆ j C) A ˆ ( 1 ) ( i ˆ ˆ j) D) Aˆ.6 iˆ+.8 ˆj E) Aˆ.6 iˆ.8 ˆj A) (.6m

More information

Physics Final Exam Formulas

Physics Final Exam Formulas INSTRUCTIONS: Write your NAME on the front of the blue exam booklet. The exam is closed book, and you may have only pens/pencils and a calculator (no stored equations or programs and no graphing). Show

More information

Physics 201 Midterm Exam 3

Physics 201 Midterm Exam 3 Physics 201 Midterm Exam 3 Information and Instructions Student ID Number: Section Number: TA Name: Please fill in all the information above. Please write and bubble your Name and Student Id number on

More information

1. A sphere with a radius of 1.7 cm has a volume of: A) m 3 B) m 3 C) m 3 D) 0.11 m 3 E) 21 m 3

1. A sphere with a radius of 1.7 cm has a volume of: A) m 3 B) m 3 C) m 3 D) 0.11 m 3 E) 21 m 3 1. A sphere with a radius of 1.7 cm has a volume of: A) 2.1 10 5 m 3 B) 9.1 10 4 m 3 C) 3.6 10 3 m 3 D) 0.11 m 3 E) 21 m 3 2. A 25-N crate slides down a frictionless incline that is 25 above the horizontal.

More information

Chapter 8: Momentum, Impulse, & Collisions. Newton s second law in terms of momentum:

Chapter 8: Momentum, Impulse, & Collisions. Newton s second law in terms of momentum: linear momentum: Chapter 8: Momentum, Impulse, & Collisions Newton s second law in terms of momentum: impulse: Under what SPECIFIC condition is linear momentum conserved? (The answer does not involve collisions.)

More information

PHYSICS 111 SPRING EXAM 2: March 7, 2017; 8:15-9:45 pm

PHYSICS 111 SPRING EXAM 2: March 7, 2017; 8:15-9:45 pm PHYSICS 111 SPRING 017 EXAM : March 7, 017; 8:15-9:45 pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 0 multiple-choice questions plus 1 extra credit question, each

More information

PRACTICE TEST for Midterm Exam

PRACTICE TEST for Midterm Exam South Pasadena AP Physics PRACTICE TEST for Midterm Exam FORMULAS Name Period Date / / d = vt d = v o t + ½ at 2 d = v o + v 2 t v = v o + at v 2 = v 2 o + 2ad v = v x 2 + v y 2 = tan 1 v y v v x = v cos

More information

Center of Mass & Linear Momentum

Center of Mass & Linear Momentum PHYS 101 Previous Exam Problems CHAPTER 9 Center of Mass & Linear Momentum Center of mass Momentum of a particle Momentum of a system Impulse Conservation of momentum Elastic collisions Inelastic collisions

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

PHYS 1114, Lecture 33, April 10 Contents:

PHYS 1114, Lecture 33, April 10 Contents: PHYS 1114, Lecture 33, April 10 Contents: 1 This class is o cially cancelled, and has been replaced by the common exam Tuesday, April 11, 5:30 PM. A review and Q&A session is scheduled instead during class

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

Pleeeeeeeeeeeeeease mark your UFID, exam number, and name correctly. 20 problems 3 problems from exam 2

Pleeeeeeeeeeeeeease mark your UFID, exam number, and name correctly. 20 problems 3 problems from exam 2 Pleeeeeeeeeeeeeease mark your UFID, exam number, and name correctly. 20 problems 3 problems from exam 1 3 problems from exam 2 6 problems 13.1 14.6 (including 14.5) 8 problems 1.1---9.6 Go through the

More information

Rotational Kinematics and Dynamics. UCVTS AIT Physics

Rotational Kinematics and Dynamics. UCVTS AIT Physics Rotational Kinematics and Dynamics UCVTS AIT Physics Angular Position Axis of rotation is the center of the disc Choose a fixed reference line Point P is at a fixed distance r from the origin Angular Position,

More information

PHY218 SPRING 2016 Review for Final Exam: Week 14 Final Review: Chapters 1-11, 13-14

PHY218 SPRING 2016 Review for Final Exam: Week 14 Final Review: Chapters 1-11, 13-14 Final Review: Chapters 1-11, 13-14 These are selected problems that you are to solve independently or in a team of 2-3 in order to better prepare for your Final Exam 1 Problem 1: Chasing a motorist This

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

PHYSICS 111 SPRING EXAM 2: March 6, 2018; 8:15-9:45 pm

PHYSICS 111 SPRING EXAM 2: March 6, 2018; 8:15-9:45 pm PHYSICS 111 SPRING 2018 EXAM 2: March 6, 2018; 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

AP Physics. Harmonic Motion. Multiple Choice. Test E

AP Physics. Harmonic Motion. Multiple Choice. Test E AP Physics Harmonic Motion Multiple Choice Test E A 0.10-Kg block is attached to a spring, initially unstretched, of force constant k = 40 N m as shown below. The block is released from rest at t = 0 sec.

More information

Review for 3 rd Midterm

Review for 3 rd Midterm Review for 3 rd Midterm Midterm is on 4/19 at 7:30pm in the same rooms as before You are allowed one double sided sheet of paper with any handwritten notes you like. The moment-of-inertia about the center-of-mass

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

Figure 1 Answer: = m

Figure 1 Answer: = m Q1. Figure 1 shows a solid cylindrical steel rod of length =.0 m and diameter D =.0 cm. What will be increase in its length when m = 80 kg block is attached to its bottom end? (Young's modulus of steel

More information

Concept Question: Normal Force

Concept Question: Normal Force Concept Question: Normal Force Consider a person standing in an elevator that is accelerating upward. The upward normal force N exerted by the elevator floor on the person is 1. larger than 2. identical

More information

Physics 121, Sections 1 and 2, Winter 2011 Instructor: Scott Bergeson Exam #3 April 16 April 21, 2011 RULES FOR THIS TEST:

Physics 121, Sections 1 and 2, Winter 2011 Instructor: Scott Bergeson Exam #3 April 16 April 21, 2011 RULES FOR THIS TEST: Physics 121, Sections 1 and 2, Winter 2011 Instructor: Scott Bergeson Exam #3 April 16 April 21, 2011 RULES FOR THIS TEST: This test is closed book. You may use a dictionary. You may use your own calculator

More information

Chapter 12: Rotation of Rigid Bodies. Center of Mass Moment of Inertia Torque Angular Momentum Rolling Statics

Chapter 12: Rotation of Rigid Bodies. Center of Mass Moment of Inertia Torque Angular Momentum Rolling Statics Chapter 1: Rotation of Rigid Bodies Center of Mass Moment of Inertia Torque Angular Momentum Rolling Statics Translational vs Rotational / / 1/ m x v dx dt a dv dt F ma p mv KE mv Work Fd P Fv / / 1/ I

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. PH 105 Exam 2 VERSION A Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Is it possible for a system to have negative potential energy? A)

More information

PHYSICS 221 SPRING EXAM 1: February 16, 2012; 8:00pm 10:00pm

PHYSICS 221 SPRING EXAM 1: February 16, 2012; 8:00pm 10:00pm PHYSICS 221 SPRING 2012 EXAM 1: February 16, 2012; 8:00pm 10:00pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 25 multiple-choice questions plus 2 extra credit questions,

More information

The diagram below shows a block on a horizontal frictionless surface. A 100.-newton force acts on the block at an angle of 30. above the horizontal.

The diagram below shows a block on a horizontal frictionless surface. A 100.-newton force acts on the block at an angle of 30. above the horizontal. Name: 1) 2) 3) Two students are pushing a car. What should be the angle of each student's arms with respect to the flat ground to maximize the horizontal component of the force? A) 90 B) 0 C) 30 D) 45

More information

King Fahd University of Petroleum and Minerals Physics Department Physics 101 Recitation Term 131 Fall 013 Quiz # 4 Section 10 A 1.50-kg block slides down a frictionless 30.0 incline, starting from rest.

More information

PHYS 101 Previous Exam Problems. Kinetic Energy and

PHYS 101 Previous Exam Problems. Kinetic Energy and PHYS 101 Previous Exam Problems CHAPTER 7 Kinetic Energy and Work Kinetic energy Work Work-energy theorem Gravitational work Work of spring forces Power 1. A single force acts on a 5.0-kg object in such

More information

31 ROTATIONAL KINEMATICS

31 ROTATIONAL KINEMATICS 31 ROTATIONAL KINEMATICS 1. Compare and contrast circular motion and rotation? Address the following Which involves an object and which involves a system? Does an object/system in circular motion have

More information

Physics 201 Midterm Exam 3

Physics 201 Midterm Exam 3 Name: Date: _ Physics 201 Midterm Exam 3 Information and Instructions Student ID Number: Section Number: TA Name: Please fill in all the information above Please write and bubble your Name and Student

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. PH 105 Exam 2 VERSION B Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A boy throws a rock with an initial velocity of 2.15 m/s at 30.0 above

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

A) 4.0 m/s B) 5.0 m/s C) 0 m/s D) 3.0 m/s E) 2.0 m/s. Ans: Q2.

A) 4.0 m/s B) 5.0 m/s C) 0 m/s D) 3.0 m/s E) 2.0 m/s. Ans: Q2. Coordinator: Dr. W. Al-Basheer Thursday, July 30, 2015 Page: 1 Q1. A constant force F ( 7.0ˆ i 2.0 ˆj ) N acts on a 2.0 kg block, initially at rest, on a frictionless horizontal surface. If the force causes

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

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

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

Lecture 13 REVIEW. Physics 106 Spring What should we know? What should we know? Newton s Laws

Lecture 13 REVIEW. Physics 106 Spring What should we know? What should we know? Newton s Laws Lecture 13 REVIEW Physics 106 Spring 2006 http://web.njit.edu/~sirenko/ What should we know? Vectors addition, subtraction, scalar and vector multiplication Trigonometric functions sinθ, cos θ, tan θ,

More information

= y(x, t) =A cos (!t + kx)

= y(x, t) =A cos (!t + kx) A harmonic wave propagates horizontally along a taut string of length L = 8.0 m and mass M = 0.23 kg. The vertical displacement of the string along its length is given by y(x, t) = 0. m cos(.5 t + 0.8

More information

Physics 218 Exam III

Physics 218 Exam III Physics 218 Exam III Spring 2017 (all sections) April 17 th, 2017 Rules of the exam: Please fill out the information and read the instructions below, but do not open the exam until told to do so. 1. You

More information

Honors Physics Review

Honors Physics Review Honors Physics Review Work, Power, & Energy (Chapter 5) o Free Body [Force] Diagrams Energy Work Kinetic energy Gravitational Potential Energy (using g = 9.81 m/s 2 ) Elastic Potential Energy Hooke s Law

More information

PHYSICS 221 SPRING 2013

PHYSICS 221 SPRING 2013 PHYSICS 221 SPRING 2013 EXAM 2: April 4, 2013 8:15-10:15pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 25 multiple-choice questions plus 2 extra credit questions,

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

Sample Final Exam 02 Physics 106 (Answers on last page)

Sample Final Exam 02 Physics 106 (Answers on last page) Sample Final Exam 02 Physics 106 (Answers on last page) Name (Print): 4 Digit ID: Section: Instructions: 1. There are 30 multiple choice questions on the test. There is no penalty for guessing, so you

More information

PHYS 101 Previous Exam Problems. Force & Motion I

PHYS 101 Previous Exam Problems. Force & Motion I PHYS 101 Previous Exam Problems CHAPTER 5 Force & Motion I Newton s Laws Vertical motion Horizontal motion Mixed forces Contact forces Inclines General problems 1. A 5.0-kg block is lowered with a downward

More information

Chapter 10: Dynamics of Rotational Motion

Chapter 10: Dynamics of Rotational Motion Chapter 10: Dynamics of Rotational Motion What causes an angular acceleration? The effectiveness of a force at causing a rotation is called torque. QuickCheck 12.5 The four forces shown have the same strength.

More information

= W Q H. ɛ = T H T C T H = = 0.20 = T C = T H (1 0.20) = = 320 K = 47 C

= W Q H. ɛ = T H T C T H = = 0.20 = T C = T H (1 0.20) = = 320 K = 47 C 1. Four identical 0.18 kg masses are placed at the corners of a 4.0 x 3.0 m rectangle, and are held there by very light connecting rods which form the sides of the rectangle. What is the moment of inertia

More information

UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics

UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics UNIVERSITY OF SASKATCHEWAN Department of Physics and Engineering Physics Physics 111.6 MIDTERM TEST #2 November 15, 2001 Time: 90 minutes NAME: STUDENT NO.: (Last) Please Print (Given) LECTURE SECTION

More information

Department of Physics

Department of Physics Department of Physics PHYS101-051 FINAL EXAM Test Code: 100 Tuesday, 4 January 006 in Building 54 Exam Duration: 3 hrs (from 1:30pm to 3:30pm) Name: Student Number: Section Number: Page 1 1. A car starts

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

Big Ideas 3 & 5: Circular Motion and Rotation 1 AP Physics 1

Big Ideas 3 & 5: Circular Motion and Rotation 1 AP Physics 1 Big Ideas 3 & 5: Circular Motion and Rotation 1 AP Physics 1 1. A 50-kg boy and a 40-kg girl sit on opposite ends of a 3-meter see-saw. How far from the girl should the fulcrum be placed in order for the

More information

Quiz Number 4 PHYSICS April 17, 2009

Quiz Number 4 PHYSICS April 17, 2009 Instructions Write your name, student ID and name of your TA instructor clearly on all sheets and fill your name and student ID on the bubble sheet. Solve all multiple choice questions. No penalty is given

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

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

Practice Test 3. Name: Date: ID: A. Multiple Choice Identify the choice that best completes the statement or answers the question.

Practice Test 3. Name: Date: ID: A. Multiple Choice Identify the choice that best completes the statement or answers the question. Name: Date: _ Practice Test 3 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A wheel rotates about a fixed axis with an initial angular velocity of 20

More information

Q1. For a completely inelastic two-body collision the kinetic energy of the objects after the collision is the same as:

Q1. For a completely inelastic two-body collision the kinetic energy of the objects after the collision is the same as: Coordinator: Dr.. Naqvi Monday, January 05, 015 Page: 1 Q1. For a completely inelastic two-body collision the kinetic energy of the objects after the collision is the same as: ) (1/) MV, where M is the

More information

DYNAMICS ME HOMEWORK PROBLEM SETS

DYNAMICS ME HOMEWORK PROBLEM SETS DYNAMICS ME 34010 HOMEWORK PROBLEM SETS Mahmoud M. Safadi 1, M.B. Rubin 2 1 safadi@technion.ac.il, 2 mbrubin@technion.ac.il Faculty of Mechanical Engineering Technion Israel Institute of Technology Spring

More information

Rotational Kinematics

Rotational Kinematics Rotational Kinematics Rotational Coordinates Ridged objects require six numbers to describe their position and orientation: 3 coordinates 3 axes of rotation Rotational Coordinates Use an angle θ to describe

More information