When the ball reaches the break in the circle, which path will it follow?
|
|
- Charity Cox
- 5 years ago
- Views:
Transcription
1 Checking Understanding: Circular Motion Dynamics When the ball reaches the break in the circle, which path will it follow? Slide 6-21
2 Answer When the ball reaches the break in the circle, which path will it follow? C. Slide 6-22
3 Additional Questions A coin sits on a rotating turntable. At the time shown in the figure, which arrow gives the direction of the coin s velocity? Slide 6-45
4 Answer: A A coin sits on a rotating turntable. At the time shown in the figure, which arrow gives the direction of the coin s velocity? A Slide 6-46
5 Additional Questions A coin sits on a rotating turntable. At the instant shown, suppose the frictional force disappeared. In what direction would the coin move? Slide 6-49
6 A coin sits on a rotating turntable. Answer At the instant shown, suppose the frictional force disappeared. In what direction would the coin move? A Slide 6-50
7 Checking Understanding When a ball on the end of a string is swung in a vertical circle, the ball is accelerating because A. the speed is changing. B. the direction is changing. C. the speed and the direction are changing. D. the ball is not accelerating. Slide 6-13
8 Answer When a ball on the end of a string is swung in a vertical circle, the ball is accelerating because A. the speed is changing. B. the direction is changing. C. the speed and the direction are changing. D. the ball is not accelerating. Slide 6-14
9 Checking Understanding: Circular Motion Dynamics For the ball on the end of a string moving in a vertical circle: What is the direction of the net force on the ball? A. tangent to the circle B. toward the center of the circle C. there is no net force Slide 6-19
10 Answer For the ball on the end of a string moving in a vertical circle: What is the direction of the net force on the ball? A. tangent to the circle B. toward the center of the circle C. there is no net force Slide 6-20
11 For the ball on the end of a string moving in a vertical circle: What force is producing the centripetal acceleration of the ball? A. gravity B. air resistance C. normal force D. tension in the string Checking Understanding: Circular Motion Dynamics Slide 6-17
12 Answer For the ball on the end of a string moving in a vertical circle: What force is producing the centripetal acceleration of the ball? A. gravity B. air resistance C. normal force D. tension in the string Slide 6-18
13 Additional Questions A coin sits on a rotating turntable. At the time shown in the figure, which arrow gives the direction of the frictional force on the coin? Slide 6-47
14 A coin sits on a rotating turntable. Answer At the time shown in the figure, which arrow gives the direction of the frictional force on the coin? D Slide 6-48
15 Reading Quiz For uniform circular motion, the acceleration A. is parallel to the velocity. B. is directed toward the center of the circle. C. is larger for a larger orbit at the same speed. D. is always due to gravity. E. is always negative. Slide 6-6
16 Answer For uniform circular motion, the acceleration A. is parallel to the velocity. B. is directed toward the center of the circle. C. is larger for a larger orbit at the same speed. D. is always due to gravity. E. is always negative. Slide 6-7
17 Summary Speed = v = Δd/Δt = 2πr/T at radius, r, Slide 6-41
18 Checking Understanding When a ball on the end of a string is swung in a vertical circle: What is the direction of the acceleration of the ball? A. Tangent to the circle, in the direction of the ball s motion B. Toward the center of the circle Slide 6-15
19 Answer When a ball on the end of a string is swung in a vertical circle: What is the direction of the acceleration of the ball? A. Tangent to the circle, in the direction of the ball s motion B. Toward the center of the circle Slide 6-16
20 Angular Displacement,, and Angular Velocity, ω is the angle between position 1 and 2. is the amount of rotation measured in degrees or radians (we ll use radians since they are the SI unit for ). 2 r 1 For an object rotating about a fixed axis, the angular displacement,, is the angle swept out by a line passing through any point on the body and intersecting the axis of rotation perpendicularly. By convention, the angular displacement is positive if it is counterclockwise.
21 Angular Displacement, For an object rotating, angular displacement is found by: (in radians) = Arc length = s radius = f i where i is sometimes zero. r
22 If determining for a complete circle, or one complete cycle: Arc length = 2 r (for one revolution) = (arc length) / r = (2 r) / r = 2 radians 1 revolution = 2 radians = 360 o So, 1 radian = 360 o / 2 = 57.3 o
23 UNIFORM CIRCULAR MOTION (UCM) Angular displacement = Δθ = the angle displaced, measured in radians, while an object undergoes UCM Δθ= ω Δt Angular Velocity = ω (Greek: Omega) ω = 2 π f and ω = Δθ/Δt All points on a rotating object rotate through the same angle in the same time, and have the same frequency. Angular velocity is also known as the turning rate. Angular velocity: all points on a rotating object have the same angular velocity, ω, (same turning rate) but different speeds, v, and v =ωr, depending on the location of that point. v =ωr
24 ω is positive if object is rotating counterclockwise. (Negative if rotation is clockwise.) Conversion: 1 revolution = 2 π rad
25 Angular Velocity Angular Velocity = the turning rate expressed in units of revolutions per second, or metric: radians per second. Angular velocity = angular displacement / elapsed time = / t units: radians/second or rad/s For one cycle: t = T = period = time for one cycle And, =s/r= (2 r)/r = 2 radians = angular displacement for one cycle = / t = 2 radians / T = 2 / T = 2 /T And since T=1/f, where f = frequency = 2 / (1/f) = 2 f = 2 f Angular velocity is sometimes called angular frequency!
26 Checking Understanding Two coins rotate on a turntable. Coin B is twice as far from the axis as coin A. A. The angular velocity of A is twice that of B. B. The angular velocity of A equals that of B. C. The angular velocity of A is half that of B. Slide 7-13
27 Answer Two coins rotate on a turntable. Coin B is twice as far from the axis as coin A. A. The angular velocity of A is twice that of B. B. The angular velocity of A equals that of B. C. The angular velocity of A is half that of B. All points on the turntable rotate through the same angle in the same time. ω = θ/ t All points have the same period, therefore, all points have the same frequency. ω = 2 π f Slide 7-14
28 Angular velocity,, or the turning rate is the same everywhere on the rotating body/object, b/c / t =2 /T is the same. But, instantaneous velocity, the velocity tangent to the circular path called tangential velocity, v T is greater for points (places) farther from the axis. The magnitude of the tangential velocity is referred to as the tangential speed. v=d/t = 2 r/t = 2 rf v T = r Important to realize v T v T v T V T
29 Checking Understanding Two coins rotate on a turntable. Coin B is twice as far from the axis as coin A. A. The speed of A is twice that of B. B. The speed of A equals that of B. C. The speed of A is half that of B. Slide 7-15
30 Answer Two coins rotate on a turntable. Coin B is twice as far from the axis as coin A. A. The speed of A is twice that of B. B. The speed of A equals that of B. C. The speed, v, of A is half that of B. v = wr Twice the radius means twice the speed, v. Therefore, B moves with twice the speed of A. Slide 7-16
31 Uniform Circular Motion a c = From: v T = r = 2 π r f v = v T a = a c Slide 6-23
32 Circular Motion And v = 2πrf = tangential speed or speed at that place (at r) a = a c
7 Rotational Motion Pearson Education, Inc. Slide 7-2
7 Rotational Motion Slide 7-2 Slide 7-3 Recall from Chapter 6 Angular displacement = θ θ= ω t Angular Velocity = ω (Greek: Omega) ω = 2 π f and ω = θ/ t All points on a rotating object rotate through the
More informationUniform circular motion (UCM) is the motion of an object in a perfect circle with a constant or uniform speed.
Uniform circular motion (UCM) is the motion of an object in a perfect circle with a constant or uniform speed. 1. Distance around a circle? circumference 2. Distance from one side of circle to the opposite
More information7.1 Describing Circular and Rotational Motion.notebook November 03, 2017
Describing Circular and Rotational Motion Rotational motion is the motion of objects that spin about an axis. Section 7.1 Describing Circular and Rotational Motion We use the angle θ from the positive
More informationChapter 7. Rotational Motion and The Law of Gravity
Chapter 7 Rotational Motion and The Law of Gravity 1 The Radian The radian is a unit of angular measure The radian can be defined as the arc length s along a circle divided by the radius r s θ = r 2 More
More information1 Problems 1-3 A disc rotates about an axis through its center according to the relation θ (t) = t 4 /4 2t
Slide 1 / 30 1 Problems 1-3 disc rotates about an axis through its center according to the relation θ (t) = t 4 /4 2t etermine the angular velocity of the disc at t= 2 s 2 rad/s 4 rad/s 6 rad/s 8 rad/s
More informationSlide 1 / 30. Slide 2 / 30. Slide 3 / m/s -1 m/s
1 Problems 1-3 disc rotates about an axis through its center according to the relation θ (t) = t 4 /4 2t Slide 1 / 30 etermine the angular velocity of the disc at t= 2 s 2 rad/s 4 rad/s 6 rad/s 8 rad/s
More informationRotational Motion and Angular Displacement
Physics 20 AP - Assignment #5 Angular Velocity and Acceleration There are many examples of rotational motion in everyday life (i.e. spinning propeller blades, CD players, tires on a moving car ). In this
More informationRigid Object. Chapter 10. Angular Position. Angular Position. A rigid object is one that is nondeformable
Rigid Object Chapter 10 Rotation of a Rigid Object about a Fixed Axis A rigid object is one that is nondeformable The relative locations of all particles making up the object remain constant All real objects
More informationChapter 8- Rotational Motion
Chapter 8- Rotational Motion Assignment 8 Textbook (Giancoli, 6 th edition), Chapter 7-8: Due on Thursday, November 13, 2008 - Problem 28 - page 189 of the textbook - Problem 40 - page 190 of the textbook
More informationRotational 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 informationChapter 6 Circular Motion, Orbits and Gravity
Chapter 6 Circular Motion, Orbits and Gravity Topics: The kinematics of uniform circular motion The dynamics of uniform circular motion Circular orbits of satellites Newton s law of gravity Sample question:
More informationUniform Circular Motion AP
Uniform Circular Motion AP Uniform circular motion is motion in a circle at the same speed Speed is constant, velocity direction changes the speed of an object moving in a circle is given by v circumference
More informationChapter 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 informationExam I Physics 101: Lecture 08 Centripetal Acceleration and Circular Motion Today s lecture will cover Chapter 5 Exam I is Monday, Oct. 7 (2 weeks!
Exam I Physics 101: Lecture 08 Centripetal Acceleration and Circular Motion http://www.youtube.com/watch?v=zyf5wsmxrai Today s lecture will cover Chapter 5 Exam I is Monday, Oct. 7 ( weeks!) Physics 101:
More informationQuick review of Ch. 6 & 7. Quiz to follow
Quick review of Ch. 6 & 7 Quiz to follow Energy and energy conservation Work:W = Fscosθ Work changes kinetic energy: Kinetic Energy: KE = 1 2 mv2 W = KE f KE 0 = 1 mv 2 1 mv 2 2 f 2 0 Conservative forces
More informationphysics Chapter 4 Lecture a strategic approach randall d. knight FOR SCIENTISTS AND ENGINEERS CHAPTER4_LECTURE4_2 THIRD EDITION
Chapter 4 Lecture physics FOR SCIENTISTS AND ENGINEERS a strategic approach THIRD EDITION randall d. knight CHAPTER4_LECTURE4_2 1 QUICK REVIEW What we ve done so far A quick review: So far, we ve looked
More informationPHYSICS 220 LAB #6: CIRCULAR MOTION
Name: Partners: PHYSICS 220 LAB #6: CIRCULAR MOTION The picture above is a copy of Copernicus drawing of the orbits of the planets which are nearly circular. It appeared in a book published in 1543. Since
More informationChapter 10.A. Rotation of Rigid Bodies
Chapter 10.A Rotation of Rigid Bodies P. Lam 7_23_2018 Learning Goals for Chapter 10.1 Understand the equations govern rotational kinematics, and know how to apply them. Understand the physical meanings
More informationPhysics 101: Lecture 08 Centripetal Acceleration and Circular Motion
Physics 101: Lecture 08 Centripetal Acceleration and Circular Motion http://www.youtube.com/watch?v=zyf5wsmxrai Today s lecture will cover Chapter 5 Physics 101: Lecture 8, Pg 1 Circular Motion Act B A
More information31 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 informationExams will be returned on Tuesday. Apologies for the delay.
Thursday February 21 Topics for this Lecture: Circular Motion Angular frequency Centripetal force/acceleration Fictitious (a.k.a. Inertial) forces: Centrifugal force Coriolis effect Gravity & orbits *Anything
More information= 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 informationIts SI unit is rad/s and is an axial vector having its direction given by right hand thumb rule.
Circular motion An object is said to be having circular motion if it moves along a circular path. For example revolution of moon around earth, the revolution of an artificial satellite in circular orbit
More informationWhat path do the longest sparks take after they leave the wand? Today we ll be doing one more new concept before the test on Wednesday.
What path do the longest sparks take after they leave the wand? Today we ll be doing one more new concept before the test on Wednesday. Centripetal Acceleration and Newtonian Gravitation Reminders: 15
More informationUniform Circular Motion
Circular Motion Uniform Circular Motion Uniform Circular Motion Traveling with a constant speed in a circular path Even though the speed is constant, the acceleration is non-zero The acceleration responsible
More informationPage 2. Q1.A satellite X is in a circular orbit of radius r about the centre of a spherical planet of mass
Q1. satellite X is in a circular orbit of radius r about the centre of a spherical planet of mass M. Which line, to, in the table gives correct expressions for the centripetal acceleration a and the speed
More informationChapter 8: Dynamics in a plane
8.1 Dynamics in 2 Dimensions p. 210-212 Chapter 8: Dynamics in a plane 8.2 Velocity and Acceleration in uniform circular motion (a review of sec. 4.6) p. 212-214 8.3 Dynamics of Uniform Circular Motion
More informationAP Physics 1 Lesson 9 Homework Outcomes. Name
AP Physics 1 Lesson 9 Homework Outcomes Name Date 1. Define uniform circular motion. 2. Determine the tangential velocity of an object moving with uniform circular motion. 3. Determine the centripetal
More informationChapter 8. Accelerated Circular Motion
Chapter 8 Accelerated Circular Motion 8.1 Rotational Motion and Angular Displacement A new unit, radians, is really useful for angles. Radian measure θ(radians) = s = rθ s (arc length) r (radius) (s in
More informationMotion Part 4: Projectile Motion
Motion Part 4: Projectile Motion Last modified: 28/03/2017 CONTENTS Projectile Motion Uniform Motion Equations Projectile Motion Equations Trajectory How to Approach Problems Example 1 Example 2 Example
More informationMultiple Choice (A) (B) (C) (D)
Multiple Choice 1. A ball is fastened to a string and is swung in a vertical circle. When the ball is at the highest point of the circle its velocity and acceleration directions are: (A) (B) (C) (D) 2.
More informationWe 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 informationAPC PHYSICS CHAPTER 11 Mr. Holl Rotation
APC PHYSICS CHAPTER 11 Mr. Holl Rotation Student Notes 11-1 Translation and Rotation All of the motion we have studied to this point was linear or translational. Rotational motion is the study of spinning
More informationContents. Objectives Circular Motion Velocity and Acceleration Examples Accelerating Frames Polar Coordinates Recap. Contents
Physics 121 for Majors Today s Class You will see how motion in a circle is mathematically similar to motion in a straight line. You will learn that there is a centripetal acceleration (and force) and
More informationLecture Presentation Chapter 7 Rotational Motion
Lecture Presentation Chapter 7 Rotational Motion Suggested Videos for Chapter 7 Prelecture Videos Describing Rotational Motion Moment of Inertia and Center of Gravity Newton s Second Law for Rotation Class
More informationRotation Basics. I. Angular Position A. Background
Rotation Basics I. Angular Position A. Background Consider a student who is riding on a merry-go-round. We can represent the student s location by using either Cartesian coordinates or by using cylindrical
More informationRotational Motion and the Law of Gravity 1
Rotational Motion and the Law of Gravity 1 Linear motion is described by position, velocity, and acceleration. Circular motion repeats itself in circles around the axis of rotation Ex. Planets in orbit,
More informationCircular Motion Kinematics 8.01 W03D1
Circular Motion Kinematics 8.01 W03D1 Announcements Open up the Daily Concept Questions page on the MITx 8.01x Webpage. Problem Set 2 due Tue Week 3 at 9 pm Week 3 Prepset due Friday Week 3 at 8:30 am
More informationRotational Motion. Lecture 17. Chapter 10. Physics I Department of Physics and Applied Physics
Lecture 17 Chapter 10 Physics I 11.13.2013 otational Motion Torque Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsi Lecture Capture: http://echo360.uml.edu/danylov2013/physics1fall.html
More informationChapter 8 Lecture Notes
Chapter 8 Lecture Notes Physics 2414 - Strauss Formulas: v = l / t = r θ / t = rω a T = v / t = r ω / t =rα a C = v 2 /r = ω 2 r ω = ω 0 + αt θ = ω 0 t +(1/2)αt 2 θ = (1/2)(ω 0 +ω)t ω 2 = ω 0 2 +2αθ τ
More informationChapter 8. Rotational Kinematics
Chapter 8 Rotational Kinematics 8.1 Rotational Motion and Angular Displacement In the simplest kind of rotation, points on a rigid object move on circular paths around an axis of rotation. 8.1 Rotational
More informationAP Physics 1 Lesson 10.a Law of Universal Gravitation Homework Outcomes
AP Physics 1 Lesson 10.a Law of Universal Gravitation Homework Outcomes 1. Use Law of Universal Gravitation to solve problems involving different masses. 2. Determine changes in gravitational and kinetic
More informationCircular Motion Kinematics
Circular Motion Kinematics 8.01 W04D1 Today s Reading Assignment: MIT 8.01 Course Notes Chapter 6 Circular Motion Sections 6.1-6.2 Announcements Math Review Week 4 Tuesday 9-11 pm in 26-152. Next Reading
More informationRecap. The bigger the exhaust speed, ve, the higher the gain in velocity of the rocket.
Recap Classical rocket propulsion works because of momentum conservation. Exhaust gas ejected from a rocket pushes the rocket forwards, i.e. accelerates it. The bigger the exhaust speed, ve, the higher
More informationChapter 9. Rotational Dynamics
Chapter 9 Rotational Dynamics In pure translational motion, all points on an object travel on parallel paths. The most general motion is a combination of translation and rotation. 1) Torque Produces angular
More informationRotational Motion. Lecture 17. Chapter 10. Physics I Department of Physics and Applied Physics
Lecture 17 Chapter 10 Physics I 04.0.014 otational Motion Torque Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsi Lecture Capture: http://echo360.uml.edu/danylov013/physics1spring.html
More informationChapter 10. Rotation of a Rigid Object about a Fixed Axis
Chapter 10 Rotation of a Rigid Object about a Fixed Axis 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. A small
More informationPhysics A - PHY 2048C
Physics A - PHY 2048C Newton s Laws & Equations of 09/27/2017 My Office Hours: Thursday 2:00-3:00 PM 212 Keen Building Warm-up Questions 1 In uniform circular motion (constant speed), what is the direction
More informationLecture 6. Circular Motion. Pre-reading: KJF 6.1 and 6.2. Please take a clicker CIRCULAR MOTION KJF
Lecture 6 Circular Motion Pre-reading: KJF 6.1 and 6.2 Please take a clicker CIRCULAR MOTION KJF 6.1 6.4 Angular position If an object moves in a circle of radius r, then after travelling a distance s
More informationChapter 10 Rotational Kinematics and Energy. Copyright 2010 Pearson Education, Inc.
Chapter 10 Rotational Kinematics and Energy Copyright 010 Pearson Education, Inc. 10-1 Angular Position, Velocity, and Acceleration Copyright 010 Pearson Education, Inc. 10-1 Angular Position, Velocity,
More informationHolt Physics Chapter 7. Rotational Motion
Holt Physics Chapter 7 Rotational Motion Measuring Rotational Motion Spinning objects have rotational motion Axis of rotation is the line about which rotation occurs A point that moves around an axis undergoes
More informationUNIVERSITY 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 informationLecture Outline Chapter 10. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc.
Lecture Outline Chapter 10 Physics, 4 th Edition James S. Walker Chapter 10 Rotational Kinematics and Energy Units of Chapter 10 Angular Position, Velocity, and Acceleration Rotational Kinematics Connections
More informationONLINE: MATHEMATICS EXTENSION 2 Topic 6 MECHANICS 6.6 MOTION IN A CIRCLE
ONLINE: MAHEMAICS EXENSION opic 6 MECHANICS 6.6 MOION IN A CICLE When a particle moes along a circular path (or cured path) its elocity must change een if its speed is constant, hence the particle must
More informationChapter 8. Rotational Kinematics
Chapter 8 Rotational Kinematics In the simplest kind of rotation, points on a rigid object move on circular paths around an axis of rotation. Example Hans Brinker is on skates and there is no friction.
More informationPosition: Angular position =! = s r. Displacement: Angular displacement =!" = " 2
Chapter 11 Rotation Perfectly Rigid Objects fixed shape throughout motion Rotation of rigid bodies about a fixed axis of rotation. In pure rotational motion: every point on the body moves in a circle who
More informationCircular Motion. Unit 7
Circular Motion Unit 7 Do Now You drive a car that follows a circular path with the radius r = 100 m. Find the distance travelled if you made one complete circle. C 2 R 2(3.14)(100) 6.28(100) 628m Uniform
More informationMECHANICAL PRINCIPLES OUTCOME 3 CENTRIPETAL ACCELERATION AND CENTRIPETAL FORCE TUTORIAL 1 CENTRIFUGAL FORCE
MECHANICAL PRINCIPLES OUTCOME 3 CENTRIPETAL ACCELERATION AND CENTRIPETAL FORCE TUTORIAL 1 CENTRIFUGAL FORCE Centripetal acceleration and force: derivation of expressions for centripetal acceleration and
More informationCircular motion minutes. 62 marks. theonlinephysicstutor.com. facebook.com/theonlinephysicstutor Page 1 of 22. Name: Class: Date: Time: Marks:
Circular motion 2 Name: Class: Date: Time: 67 minutes Marks: 62 marks Comments: Page 1 of 22 1 A lead ball of mass 0.25 kg is swung round on the end of a string so that the ball moves in a horizontal circle
More informationRIGID BODY MOTION (Section 16.1)
RIGID BODY MOTION (Section 16.1) There are cases where an object cannot be treated as a particle. In these cases the size or shape of the body must be considered. Rotation of the body about its center
More informationB) v `2. C) `2v. D) 2v. E) 4v. A) 2p 25. B) p C) 2p. D) 4p. E) 4p 2 25
1. 3. A ball attached to a string is whirled around a horizontal circle of radius r with a tangential velocity v. If the radius is changed to 2r and the magnitude of the centripetal force is doubled the
More information2/27/2018. Relative Motion. Reference Frames. Reference Frames
Relative Motion The figure below shows Amy and Bill watching Carlos on his bicycle. According to Amy, Carlos s velocity is (v x ) CA 5 m/s. The CA subscript means C relative to A. According to Bill, Carlos
More informationPSI AP Physics B Circular Motion
PSI AP Physics B Circular Motion Multiple Choice 1. A ball is fastened to a string and is swung in a vertical circle. When the ball is at the highest point of the circle its velocity and acceleration directions
More informationMomentum Review. Lecture 13 Announcements. Multi-step problems: collision followed by something else. Center of Mass
Lecture 13 Announcements 1. While you re waiting for class to start, please fill in the How to use the blueprint equation steps, in your own words.. Exam results: Momentum Review Equations p = mv Conservation
More informationCIRCULAR MOTION AND GRAVITATION
CIRCULAR MOTION AND GRAVITATION An object moves in a straight line if the net force on it acts in the direction of motion, or is zero. If the net force acts at an angle to the direction of motion at any
More informationChecking Understanding
Newton s First Law If there is no net force, the velocity of a mass remains constant (neither the magnitude nor the direction of the velocity changes). Objects at rest feel no net force. Objects in motion
More informationPHYSICS. Chapter 8 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 8 Lecture RANDALL D. KNIGHT Chapter 8. Dynamics II: Motion in a Plane IN THIS CHAPTER, you will learn to solve problems about motion
More informationDEVIL CHAPTER 6 TEST REVIEW
IB PHYSICS Name: Period: Date: # Marks: 51 DEVIL PHYSICS BADDEST CLASS ON CAMPUS CHAPTER 6 TEST REVIEW 1. A cyclist rides around a circular track at a uniform speed. Which of the following correctly gives
More informationConcepts in Physics. Wednesday, September 23
1206 - Concepts in Physics Wednesday, September 23 NOTES Additional Tutorial available: THURSDAY 16:30 to 18:00 F536 this is for all first year physics students, so bring specific questions you have Tutorial
More informationLecture 3. Rotational motion and Oscillation 06 September 2018
Lecture 3. Rotational motion and Oscillation 06 September 2018 Wannapong Triampo, Ph.D. Angular Position, Velocity and Acceleration: Life Science applications Recall last t ime. Rigid Body - An object
More informationCircular 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 informationRotation. 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 informationWelcome back to Physics 211
Welcome back to Physics 211 Today s agenda: Circular Motion 04-2 1 Exam 1: Next Tuesday (9/23/14) In Stolkin (here!) at the usual lecture time Material covered: Textbook chapters 1 4.3 s up through 9/16
More informationRotational Kinematics
Rotational Kinematics 1 Linear Motion Rotational Motion all variables considered positive if motion in counterclockwise direction displacement velocity acceleration angular displacement (Δθ) angular velocity
More informationTranslational vs Rotational. m x. Connection Δ = = = = = = Δ = = = = = = Δ =Δ = = = = = 2 / 1/2. Work
Translational vs Rotational / / 1/ Δ m x v dx dt a dv dt F ma p mv KE mv Work Fd / / 1/ θ ω θ α ω τ α ω ω τθ Δ I d dt d dt I L I KE I Work / θ ω α τ Δ Δ c t s r v r a v r a r Fr L pr Connection Translational
More informationQuickCheck 1.5. An ant zig-zags back and forth on a picnic table as shown. The ant s distance traveled and displacement are
APPY1 Review QuickCheck 1.5 An ant zig-zags back and forth on a picnic table as shown. The ant s distance traveled and displacement are A. 50 cm and 50 cm B. 30 cm and 50 cm C. 50 cm and 30 cm D. 50 cm
More informationFriction is always opposite to the direction of motion.
6. Forces and Motion-II Friction: The resistance between two surfaces when attempting to slide one object across the other. Friction is due to interactions at molecular level where rough edges bond together:
More informationName St. Mary's HS AP Physics Circular Motion HW
Name St. Mary's HS AP Physics Circular Motion HW Base your answers to questions 1 and 2 on the following situation. An object weighing 10 N swings at the end of a rope that is 0.72 m long as a simple pendulum.
More informationCircular Motion 8.01 W04D1
Circular Motion 8.01 W04D1 Next Reading Assignment: W04D2 Young and Freedman: 3.4; 5.4-5.5 Experiment 2: Circular Motion 2 Concept Question: Coastal Highway A sports car drives along the coastal highway
More informationCircular Motion and Gravitation Practice Test Provincial Questions
Circular Motion and Gravitation Practice Test Provincial Questions 1. A 1 200 kg car is traveling at 25 m s on a horizontal surface in a circular path of radius 85 m. What is the net force acting on this
More informationDynamics: Forces. Lecture 7. Chapter 5. Course website:
Lecture 7 Chapter 5 Dynamics: Forces Course website: http://faculty.uml.edu/andriy_danylov/teaching/physicsi Today we are going to discuss: Chapter 5: Some leftovers from rotational motion Ch.4 Force,
More information1 A car moves around a circular path of a constant radius at a constant speed. Which of the following statements is true?
Slide 1 / 30 1 car moves around a circular path of a constant radius at a constant speed. Which of the following statements is true? The car s velocity is constant The car s acceleration is constant The
More informationLevel 3 Physics, 2013
91524 915240 3SUPERVISOR S Level 3 Physics, 2013 91524 Demonstrate understanding of mechanical systems 2.00 pm Monday 25 November 2013 Credits: Six Achievement Achievement with Merit Achievement with Excellence
More informationChapter 3.5. Uniform Circular Motion
Chapter 3.5 Uniform Circular Motion 3.5 Uniform Circular Motion DEFINITION OF UNIFORM CIRCULAR MOTION Uniform circular motion is the motion of an object traveling at a constant speed on a circular path.
More informationWelcome back to Physics 211. Physics 211 Spring 2014 Lecture ask a physicist
Welcome back to Physics 211 Today s agenda: Forces in Circular Motion Impulse Physics 211 Spring 2014 Lecture 07-1 1 ask a physicist My question is on sonoluminescence, which is supposed to be when a sound
More informationUCM-Circular Motion. Base your answers to questions 1 and 2 on the information and diagram below.
Base your answers to questions 1 and 2 on the information and diagram The diagram shows the top view of a 65-kilogram student at point A on an amusement park ride. The ride spins the student in a horizontal
More informationPhysics 1A. Lecture 3B
Physics 1A Lecture 3B Review of Last Lecture For constant acceleration, motion along different axes act independently from each other (independent kinematic equations) One is free to choose a coordinate
More informationSlide 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 informationRotation. EMU Physics Department. Ali ÖVGÜN.
Rotation Ali ÖVGÜN EMU Physics Department www.aovgun.com Rotational Motion Angular Position and Radians Angular Velocity Angular Acceleration Rigid Object under Constant Angular Acceleration Angular and
More informationMechanics Cycle 1 Chapter 12. Chapter 12. Forces Causing Curved Motion
Chapter 1 Forces Causing Curved Motion A Force Must be Applied to Change Direction Coordinates, Angles, Angular Velocity, and Angular Acceleration Centripetal Acceleration and Tangential Acceleration Along
More informationKinematics. 1. Introduction to Kinematics. 2. Position and displacement
Kinematics 1. Introduction to Kinematics. Scalars & vectors 2. Position & displacement 3. Velocity 4. Acceleration 5. Uniform linear motion 6. Uniformly accelerated motion 7. Uniform circular motion 1.
More informationRotational kinematics
Rotational kinematics Suppose you cut a circle out of a piece of paper and then several pieces of string which are just as long as the radius of the paper circle. If you then begin to lay these pieces
More informationPHYS-2010: General Physics I Course Lecture Notes Section VIII
PHYS-2010: General Physics I Course Lecture Notes Section VIII Dr. Donald G. Luttermoser East Tennessee State University Edition 2.4 Abstract These class notes are designed for use of the instructor and
More informationChapter 8. Centripetal Force and The Law of Gravity
Chapter 8 Centripetal Force and The Law of Gravity Centripetal Acceleration An object traveling in a circle, even though it moves with a constant speed, will have an acceleration The centripetal acceleration
More informationROTATIONAL KINEMATICS
CHAPTER 8 ROTATIONAL KINEMATICS ANSWERS TO FOCUS ON CONCEPTS QUESTIONS. (d) Using Equation 8. (θ = Arc length / Radius) to calculate the angle (in radians) that each object subtends at your eye shows that
More informationPSI 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 informationwhere R represents the radius of the circle and T represents the period.
Chapter 3 Circular Motion Uniform circular motion is the motion of an object in a circle with a constant or uniform speed. Speed When moving in a circle, an object traverses a distance around the perimeter
More informationTYPICAL NUMERIC QUESTIONS FOR PHYSICS I REGULAR QUESTIONS TAKEN FROM CUTNELL AND JOHNSON CIRCULAR MOTION CONTENT STANDARD IB
TYPICAL NUMERIC QUESTIONS FOR PHYSICS I REGULAR QUESTIONS TAKEN FROM CUTNELL AND JOHNSON CIRCULAR MOTION CONTENT STANDARD IB 1. A car traveling at 20 m/s rounds a curve so that its centripetal acceleration
More informationPSI 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 informationChapter 9 [ Edit ] Ladybugs on a Rotating Disk. v = ωr, where r is the distance between the object and the axis of rotation. Chapter 9. Part A.
Chapter 9 [ Edit ] Chapter 9 Overview Summary View Diagnostics View Print View with Answers Due: 11:59pm on Sunday, October 30, 2016 To understand how points are awarded, read the Grading Policy for this
More information