Test Wednesday, March 15 th 7pm, Bring your calculator and #2 pencil with a good eraser! 20 Multiple choice questions from:
|
|
- Muriel Perkins
- 6 years ago
- Views:
Transcription
1 Test Wednesday, March 15 th 7pm, Bring your calculator and #2 pencil with a good eraser! 20 Multiple choice questions from: Chapter 4 Newton s Three Laws, Free Body Diagrams, Friction Chapter 5 (except 5.4) Work, Kinetic Energy, Gravitational Potential Energy, Energy Conservation Chapter 6 (except 6.5) plus 9.2 Momentum, Impulse, Pressure, Elastic and Inelastic Collisions
2 Today s Objectives Rotational Motion After today, you should be able to: Recognize uniform circular motion Identify force(s) that causes circular motion Determine both tangential and centripetal acceleration Relate to gravity Practice: 7.15, 7.17, 7.21, 7.23, 7.25, 7.29, 7.31, 7.33, 7.35
3
4 Centripetal Force Newton s 1 st Law: An object in motion will stay in motion with constant speed and direction unless acted on by an external force. A centripetal force is the force that makes an object move in a curved path. The can moves in a circle because of the tension in the rope The force exerted radially inward by friction on the tires makes the car move in a circle.
5 Contrast with Centrifugal Force (A Fictitious Force) Centrifugal: The faster you go, it feels like there is an increasing force pushing you away from the center of the merry-go-round. Centripetal: In reality, your body is trying to follow Newton s first law, but the merry-goround is applying a force to go in a circle.
6 The merry go round is turning clockwise as viewed from the top, as shown. If you are standing on the bottom edge (boundary between red and yellow), what direction would you go if you let go? A B E C D Q8
7 Fictitious Forces (Centrifugal Force) According to Newton s 1 st Law, your body wants to continue to move in a straight line of constant velocity and if you don t hold on or hold yourself against a bar (adding a centripetal force), you will move in a straight line off the merry-go-round.
8 Circular Motion in Merry Go Rounds Watch after class: Watch in class:
9 Newton s Laws Appear Like They Don t Work From An Accelerating Reference Frame (with respect to the ground, they do)
10 (ΣF = ma) a a tan a R
11 Relations Between Angular and Linear Quantities If w is increasing or decreasing, there is a tangential acceleration in addition to the centripetal acceleration v rw a tan v t ( rw) t r w t Note that net acceleration is a r tan v r (wr) r 2 2 a R a a 2 R w r a a tan R
12 NOTE: The acceleration in this case in linear acceleration, a, not angular acceleration, α
13 What kind of acceleration does a person at the equator of Earth experience due to Earth s rotation about its axis? A. Tangential/Angular B. Centripetal/Radial C. Neither D. Both Q9
14 The Earth is not speeding up, so the tangential acceleration a tan =0=r The radial acceleration a radial =v 2 /R
15 Why does the Moon Orbit the Earth? All objects that have mass attract each other Magnitude of gravitational attractive force between two objects is related to the masses and distance between them. m1m F G G 2 r r = distance between centers of two objects G = N m 2 / kg 2 (Gravitational Constant) 2
16 Centrifuge A sample of blood is placed in a centrifuge of radius 16.0 cm. The mass of a red blood cell is 3.0 x10-16 kg, and the magnitude of the force needed to make it separate from the plasma is 4.0 x N. At how many revolutions per second should the centrifuge be operated?
17 blue blue A. B. C. D. Q10
18 A DVD is rotating with an ever-increasing speed. How does the centripetal acceleration a rad compare at points P and Q? A. P and Q have the same a rad B. Q has a greater a rad than P. C. Q has a smaller a rad than P. Q11
19 Artificial gravity Astronauts spending lengthy periods of time in space experience negative effects due to weightlessness, such as weakening of muscle tissue. In order to simulate gravity, how many revolutions per minute would be required to create a normal force equal in magnitude to the astronaut's weight? 50m
20 A B C D E Which path will the ball take when it exits the channel at R? Q12
21 A. B. C. D. E. Q13
22 A. B. C. D. E. Q14
23 Do you think Spiderman s spider silk could hold up? Consider Spiderman swinging off Let s assume Spider-Man starts from rest, of the top has of only a building potential 15 energy. m tall. At the bottom of his swing, he has only kinetic energy (K = ½mv 2 ). To find Spider-Man's velocity at the bottom of his swing, we apply the law of conservation of energy. Therefore: ½mv 2 = mgh Solving for v gives: v = sqrt(2gh) = sqrt(2(9.8 m/s 2 )(15 m)) = m/s The velocity at the bottom of his swing is m/s (38.36 mph). In order to calculate the tension in Spider-Man's web, we use: ΣF radial =ma radial =mv 2 /r = T mg (r is the radius of the circle formed while Spider-Man swings) We solve for T, and find that T = mv 2 /r +mg = (68 kg)(17.15 m/s) 2 /(15 m)+(68 kg)(9.8 m/s 2 ) = 2000 N!
24 It s true! Spider silk could stop a Boeing 747 in flight, is stronger than bullet-proof Kevlar and more elastic than nylon, biologists say.
25 Good Summary G7tjiMNVlc
26 Chapter/Section: Clicker #=Answer Ch.7: 8=B, 9=B, 10=B, 11=B, 12=B, 13=B, 14=D
27
28
Midterm Grades Midterm HW and MidtermGrades in ecampus. Check clicker grades Check HW (WebAssign) grade HW and Reading Assignments
Exam 2 Grades not in yet Midterm Grades Midterm HW and MidtermGrades in ecampus Check clicker grades Check HW (WebAssign) grade HW and Reading Assignments Today s Objectives Rotational Motion After today,
More informationLinear vs. Rotational Motion
Linear vs. Rotational Motion Every term in a linear equation has a similar term in the analogous rotational equation. Displacements: s = r θ v t ω Speeds: v t = ω r Accelerations: a t = α r Every point
More informationAngle recap. Angular position: Angular displacement: s. Angular velocity: Angular Acceleration:
Angle recap Angular position: Angular displacement: s Angular velocity: Angular Acceleration: Every point on a rotating rigid object has the same angular, but not the same linear motion! Today s lecture
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 informationTest Wednesday, March 15 th 7pm, Bring your calculator and #2 pencil with a good eraser! 20 Multiple choice questions from:
Test Wednesday, March 15 th 7pm, Bring your calculator and #2 pencil with a good eraser! 20 Multiple choice questions from: Chapter 4 Newton s Three Laws, Free Body Diagrams, Friction Chapter 5 (except
More informationPractice 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 informationPreparing for Six Flags Physics Concepts
Preparing for Six Flags Physics Concepts uniform means constant, unchanging At a uniform speed, the distance traveled is given by Distance = speed x time At uniform velocity, the displacement is given
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 informationPreview. Circular Motion and Gravitation Section 1. Section 1 Circular Motion. Section 2 Newton s Law of Universal Gravitation
Circular Motion and Gravitation Section 1 Preview Section 1 Circular Motion Section 2 Newton s Law of Universal Gravitation Section 3 Motion in Space Section 4 Torque and Simple Machines Circular Motion
More informationPRACTICE 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 informationExperiencing Acceleration: The backward force you feel when your car accelerates is caused by your body's inertia. Chapter 3.3
Experiencing Acceleration: The backward force you feel when your car accelerates is caused by your body's inertia. Chapter 3.3 Feeling of apparent weight: Caused your body's reaction to the push that the
More informationExam 1 Solutions. Kinematics and Newton s laws of motion
Exam 1 Solutions Kinematics and Newton s laws of motion No. of Students 80 70 60 50 40 30 20 10 0 PHY231 Spring 2012 Midterm Exam 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Raw Score 1. In which
More informationNewton s Third Law of Motion Newton s Law of Gravitation Buoyancy Momentum. 3-2 Section 3.4
Martha Casquete Newton s Third Law of Motion Newton s Law of Gravitation Buoyancy Momentum 3-2 Section 3.4 Net force/balance and unbalance forces Newton s First Law of Motion/Law of Inertia Newton s Second
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 informationChapter 2. Forces & Newton s Laws
Chapter 2 Forces & Newton s Laws 1st thing you need to know Everything from chapter 1 Speed formula Acceleration formula All their units There is only 1 main formula, but some equations will utilize previous
More informationQuest Chapter 09. Eliminate the obviously wrong answers. Consider what is changing: speed, velocity, some part of velocity? Choose carefully.
1 A dragster maintains a speedometer reading of 100 km/h and passes through a curve with a constant radius. Which statement is true? 1. The dragster rounded the curve at a changing speed of 100 km/h. 2.
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 informationPreview. Circular Motion and Gravitation Section 1. Section 1 Circular Motion. Section 2 Newton s Law of Universal Gravitation
Circular Motion and Gravitation Section 1 Preview Section 1 Circular Motion Section 2 Newton s Law of Universal Gravitation Section 3 Motion in Space Section 4 Torque and Simple Machines Circular Motion
More informationTest Wednesday, Oct. 12 th 7pm, White Hall A-K: B51 L-Z:G09 Bring your calculator! 20 Multiple choice questions from:
Test Wednesday, Oct. 12 th 7pm, White Hall A-K: B51 L-Z:G09 Bring your calculator! 20 Multiple choice questions from: Chapter 4 Newton s Three Laws, Free Body Diagrams, Friction Chapter 5 (except 5.4 and
More informationComments about HW #1 Sunset observations: Pick a convenient spot (your dorm?) Try to get 1 data point per week Keep a lab notebook with date, time,
Comments about HW #1 Sunset observations: Pick a convenient spot (your dorm?) Try to get 1 data point per week Keep a lab notebook with date, time, weather, comments Mark down bad weather attempts Today:
More informationCp physics web review chapter 7 gravitation and circular motion
Name: Class: _ Date: _ ID: A Cp physics web review chapter 7 gravitation and circular motion Multiple Choice Identify the choice that best completes the statement or answers the question.. What is the
More informationProficient. a. The gravitational field caused by a. The student is able to approximate a numerical value of the
Unit 6. Circular Motion and Gravitation Name: I have not failed. I've just found 10,000 ways that won't work.-- Thomas Edison Big Idea 1: Objects and systems have properties such as mass and charge. Systems
More informationCh. 2 The Laws of Motion
Ch. 2 The Laws of Motion Lesson 1 Gravity and Friction Force - A push or pull we pull on a locker handle push a soccer ball or on the computer keys Contact force - push or pull on one object by another
More informationExtra Circular Motion Questions
Extra Circular Motion Questions Elissa is at an amusement park and is driving a go-cart around a challenging track. Not being the best driver in the world, Elissa spends the first 10 minutes of her go-cart
More informationUnit 5 Circular Motion and Gravitation
Unit 5 Circular Motion and Gravitation In the game of tetherball, the struck ball whirls around a pole. In what direction does the net force on the ball point? 1) Tetherball 1) toward the top of the pole
More informationAxis Balanced Forces Centripetal force. Change in velocity Circular Motion Circular orbit Collision. Conservation of Energy
When something changes its velocity The rate of change of velocity of a moving object. Can result from a change in speed and/or a change in direction On surface of earth, value is 9.8 ms-²; increases nearer
More informationBlueberry Muffin Nov. 29/30, 2016 Period: Names:
Blueberry Muffin Nov. 9/30, 016 Period: Names: Congratulations! 1. To solve the problems, use your etextbook, physical textbooks, physics websites, your Sketchbooks.. Show your thinking through calculations,
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 informationHonors 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 informationTopic 1: Newtonian Mechanics Energy & Momentum
Work (W) the amount of energy transferred by a force acting through a distance. Scalar but can be positive or negative ΔE = W = F! d = Fdcosθ Units N m or Joules (J) Work, Energy & Power Power (P) the
More informationPH201 Chapter 6 Solutions
PH201 Chapter 6 Solutions 6.2. Set Up: Since the stone travels in a circular path, its acceleration is directed toward the center of the circle. The only horizontal force on the stone is the tension of
More informationIn this lecture we will discuss three topics: conservation of energy, friction, and uniform circular motion.
1 PHYS:100 LECTURE 9 MECHANICS (8) In this lecture we will discuss three topics: conservation of energy, friction, and uniform circular motion. 9 1. Conservation of Energy. Energy is one of the most fundamental
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 informationChapter 9- Static Equilibrium
Chapter 9- Static Equilibrium Changes in Office-hours The following changes will take place until the end of the semester Office-hours: - Monday, 12:00-13:00h - Wednesday, 14:00-15:00h - Friday, 13:00-14:00h
More informationPhysics 12. Unit 5 Circular Motion and Gravitation Part 1
Physics 12 Unit 5 Circular Motion and Gravitation Part 1 1. Nonlinear motions According to the Newton s first law, an object remains its tendency of motion as long as there is no external force acting
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 informationUpon collision, the clay and steel block stick together and move to the right with a speed of
1. A 2.0-kilogram ball traveling north at 4.0 meters per second collides head on with a 1.0-kilogram ball traveling south at 8.0 meters per second. What is the magnitude of the total momentum of the two
More informationAcceleration in Uniform Circular Motion
Acceleration in Uniform Circular Motion The object in uniform circular motion has a constant speed, but its velocity is constantly changing directions, generating a centripetal acceleration: a c v r 2
More information1 Forces. 2 Energy & Work. GS 104, Exam II Review
1 Forces 1. What is a force? 2. Is weight a force? 3. Define weight and mass. 4. In European countries, they measure their weight in kg and in the United States we measure our weight in pounds (lbs). Who
More informationCircular Motion 1
--------------------------------------------------------------------------------------------------- Circular Motion 1 ---------------------------------------------------------------------------------------------------
More informationUniform Circular Motion. Uniform Circular Motion
Uniform Circular Motion Uniform Circular Motion Uniform Circular Motion An object that moves at uniform speed in a circle of constant radius is said to be in uniform circular motion. Question: Why is uniform
More informationChapter 8. Dynamics II: Motion in a Plane
Chapter 8. Dynamics II: Motion in a Plane Chapter Goal: To learn how to solve problems about motion in a plane. Slide 8-2 Chapter 8 Preview Slide 8-3 Chapter 8 Preview Slide 8-4 Chapter 8 Preview Slide
More informationCircular Velocity and Centripetal Acceleration
1. An object is spun around in circular motion such that it completes 100 cycles in 25 s. a. What is the period of its rotation? [0.25 s] b. If the radius is 0.3 m what is the velocity? [7.54 m/s] c. Draw
More informationMotion. Argument: (i) Forces are needed to keep things moving, because they stop when the forces are taken away (evidence horse pulling a carriage).
1 Motion Aristotle s Study Aristotle s Law of Motion This law of motion was based on false assumptions. He believed that an object moved only if something was pushing it. His arguments were based on everyday
More informationr 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 informationChapter 7: Circular Motion
Chapter 7: Circular Motion Spin about an axis located within the body Example: Spin about an axis located outside the body. Example: Example: Explain why it feels like you are pulled to the right side
More informationIn the last lecture the concept of kinetic energy was introduced. Kinetic energy (KE) is the energy that an object has by virtue of its motion
1 PHYS:100 LETUE 9 MEHANIS (8) I. onservation of Energy In the last lecture the concept of kinetic energy was introduced. Kinetic energy (KE) is the energy that an object has by virtue of its motion KINETI
More informationExperiment #7 Centripetal Force Pre-lab Questions Hints
Experiment #7 Centripetal Force Pre-lab Questions Hints The following are some hints for this pre-lab, since a few of these questions can be a little difficult. Note that these are not necessarily the
More informationRecap I. Angular position: Angular displacement: s. Angular velocity: Angular Acceleration:
Recap I Angular position: Angular displacement: s Angular velocity: Angular Acceleration: Every point on a rotating rigid object has the same angular, but not the same linear motion! Recap II Circular
More informationCentripetal force keeps an Rotation and Revolution
Centripetal force keeps an object in circular motion. Which moves faster on a merry-go-round, a horse near the outside rail or one near the inside rail? While a hamster rotates its cage about an axis,
More informationHour Exam #1. Power. Question. Question. Chapter 1: Post-Aristotle. Question. P = Work time, Joules(J) " Watts (W) second(s)
Hour Exam #1 Hour Exam I, Wed. Feb. 14, in-class (50 minutes) Material Covered: Chap 1, 3-6 One page of notes (8.5 x 11 ) allowed 20 multiple choice questions Scantron sheets will be used - bring #2 HB
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 16, 2000 Time: 90 minutes NAME: STUDENT NO.: (Last) Please Print (Given) LECTURE SECTION
More informationThe 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 informationAssignment - Periodic Motion. Reading: Giancoli, Chapter 5 Holt, Chapter 7. Objectives/HW:
Assignment - Periodic Motion Reading: Giancoli, Chapter 5 Holt, Chapter 7 Objectives/HW: The student will be able to: 1 Define and calculate period and frequency. 2 Apply the concepts of position, distance,
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 informationPHYSICS 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 information2017 PHYSICS FINAL REVIEW PACKET EXAM BREAKDOWN
2017 PHYSICS FINAL REVIEW PACKET EXAM BREAKDOWN Topics: Forces Motion Momentum Gravity Electrostatics DATE: TIME: ROOM: PROCTOR: YOU ARE REQUIRED TO BRING: 1. CALCULATOR (YOUR OWN NO SHARING) 2. PENCIL
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 informationAnnouncements Oct 27, 2009
Announcements Oct 7, 009 1. HW 14 due tonight. Reminder: some of your HW answers will need to be written in scientific notation. Do this with e notation, not with x signs. a. 6.57E33 correct format b.
More information66 Chapter 6: FORCE AND MOTION II
Chapter 6: FORCE AND MOTION II 1 A brick slides on a horizontal surface Which of the following will increase the magnitude of the frictional force on it? A Putting a second brick on top B Decreasing the
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 informationEnergy and Angular Momentum
Notes 13 Rotation Page 1 Energy and Angular Momentum The kinetic energy associate with a rotating object is simply the sum of the regular kinetic energies. Our goal is to state the rotational kinetic energy
More informationPart Two: Earlier Material
Part Two: Earlier Material Problem 1: (Momentum and Impulse) A superball of m 1 = 0.08kg, starting at rest, is dropped from a height falls h 0 = 3.0m above the ground and bounces back up to a height of
More informationCircular Motion and Gravitation. Centripetal Acceleration
Circular Motion and Gravitation Centripetal Acceleration Recall linear acceleration 3. Going around a curve, at constant speed 1. Speeding up vi vi Δv a ac ac vi ac 2. Slowing down v velocity and acceleration
More informationLecture 10. Example: Friction and Motion
Lecture 10 Goals: Exploit Newton s 3 rd Law in problems with friction Employ Newton s Laws in 2D problems with circular motion Assignment: HW5, (Chapter 7, due 2/24, Wednesday) For Tuesday: Finish reading
More informationFor each of the following questions, give clear and complete evidence for your choice in the space provided.
Name (printed) First Day Stamp For each of the following questions, give clear and complete evidence for your choice in the space provided. 1. An astronomer observes that a certain heavenly body is moving
More informationPHYSICS 221 SPRING EXAM 1: February 20, 2014; 8:15pm 10:15pm
PHYSICS 221 SPRING 2014 EXAM 1: February 20, 2014; 8:15pm 10:15pm Name (printed): Recitation Instructor: Section # INSTRUCTIONS: This exam contains 25 multiple-choice questions plus 2 extra credit questions,
More informationPRACTICE TEST for Midterm Exam
South Pasadena AP Physics PRACTICE TEST for Midterm Exam FORMULAS Name Period Date / / d = vt d = v ot + ½ at d = v o + v t v = v o + at v = v o + ad v = v x + v y = tan 1 v y v v x = v cos v y = v sin
More informationImpulse and Momentum continued
Chapter 7 Impulse and Momentum continued 7.2 The Principle of Conservation of Linear Momentum External forces Forces exerted on the objects by agents external to the system. Net force changes the velocity
More informationAP Physics C - Problem Drill 18: Gravitation and Circular Motion
AP Physics C - Problem Drill 18: Gravitation and Circular Motion Question No. 1 of 10 Instructions: (1) Read the problem and answer choices carefully () Work the problems on paper as 1. Two objects some
More informationASTRONAUT PUSHES SPACECRAFT
ASTRONAUT PUSHES SPACECRAFT F = 40 N m a = 80 kg m s = 15000 kg a s = F/m s = 40N/15000 kg = 0.0027 m/s 2 a a = -F/m a = -40N/80kg = -0.5 m/s 2 If t push = 0.5 s, then v s = a s t push =.0014 m/s, and
More informationChapter 5 Lecture Notes
Formulas: a C = v 2 /r a = a C + a T F = Gm 1 m 2 /r 2 Chapter 5 Lecture Notes Physics 2414 - Strauss Constants: G = 6.67 10-11 N-m 2 /kg 2. Main Ideas: 1. Uniform circular motion 2. Nonuniform circular
More informationMake sure you know the three laws inside and out! You must know the vocabulary too!
Newton's Laws Study Guide Test March 9 th The best plan is to study every night for 15 to 20 minutes. Make sure you know the three laws inside and out! You must know the vocabulary too! Newton s First
More informationChapter 5 Circular Motion; Gravitation
Chapter 5 Circular Motion; Gravitation Units of Chapter 5 Kinematics of Uniform Circular Motion Dynamics of Uniform Circular Motion Highway Curves, Banked and Unbanked Newton s Law of Universal Gravitation
More informationChapter 6. Preview. Section 1 Gravity and Motion. Section 2 Newton s Laws of Motion. Section 3 Momentum. Forces and Motion.
Forces and Motion Preview Section 1 Gravity and Motion Section 2 Newton s Laws of Motion Section 3 Momentum Concept Mapping Section 1 Gravity and Motion Bellringer Answer the following question in your
More informationReview of Linear Momentum And Rotational Motion
Physics 7B-1 (A/B) Professor Cebra Winter 2010 Lecture 7 Review of Linear Momentum And Rotational Motion Slide 1 of 29 Physics 7B Lecture 7 17-Feb-2010 Slide 2 of 29 The Definition of Impulse Recall that
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 informationChapter 9: Rotational Dynamics Tuesday, September 17, 2013
Chapter 9: Rotational Dynamics Tuesday, September 17, 2013 10:00 PM The fundamental idea of Newtonian dynamics is that "things happen for a reason;" to be more specific, there is no need to explain rest
More informationSAPTARSHI CLASSES PVT. LTD.
SAPTARSHI CLASSES PVT. LTD. NEET/JEE Date : 13/05/2017 TEST ID: 120517 Time : 02:00:00 Hrs. PHYSICS, Chem Marks : 360 Phy : Circular Motion, Gravitation, Che : Halogen Derivatives Of Alkanes Single Correct
More informationTest Wed, Feb 8 th 7pm, G20 MING HSIEH Bring your calculator and #2 pencil with a good eraser! 20 Multiple choice questions from:
Test Wed, Feb 8 th 7pm, G20 MING HSIEH Bring your calculator and #2 pencil with a good eraser! 20 Multiple choice questions from: Chapter 1 (except section 1.2 and 1.7): Unit conversions, estimating, trigonometry,
More informationCircular Motion and Gravitation. Centripetal Acceleration
Circular Motion and Gravitation Centripetal Acceleration Recall linear acceleration! Δv! aavg t 3. Going around urve, at constant speed 1. Speeding up vi vi Δv a ac ac vi ac. Slowing down v velocity and
More informationCircular Motion and Gravitation Notes 1 Centripetal Acceleration and Force
Circular Motion and Gravitation Notes 1 Centripetal Acceleration and Force This unit we will investigate the special case of kinematics and dynamics of objects in uniform circular motion. First let s consider
More informationBlueberry Muffin Nov. 29/30, 2016 Period: Names:
Blueberry Muffin Nov. 29/30, 2016 Period: Names: Congratulations! 1. To solve the problems, use your etextbook, physical textbooks, physics websites, your Sketchbooks. 2. Show your thinking through calculations,
More informationChapter 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 informationChapter 6: Systems in Motion
Chapter 6: Systems in Motion The celestial order and the beauty of the universe compel me to admit that there is some excellent and eternal Being, who deserves the respect and homage of men Cicero (106
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 informationA B = AB cos θ = 100. = 6t. a(t) = d2 r(t) a(t = 2) = 12 ĵ
1. A ball is thrown vertically upward from the Earth s surface and falls back to Earth. Which of the graphs below best symbolizes its speed v(t) as a function of time, neglecting air resistance: The answer
More informationPHYSICS 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 informationLecture Presentation. Chapter 6 Preview Looking Ahead. Chapter 6 Circular Motion, Orbits, and Gravity
Chapter 6 Preview Looking Ahead Lecture Presentation Chapter 6 Circular Motion, Orbits, and Gravity Text: p. 160 Slide 6-2 Chapter 6 Preview Looking Back: Centripetal Acceleration In Section 3.8, you learned
More informationCircular Motion & Rotational Mechanics. Semester 2 Review Project - Sonya Kalara, Ellie Kim, and Charlotte Spry
Circular Motion & Rotational Mechanics Semester 2 Review Project - Sonya Kalara, Ellie Kim, and Charlotte Spry Definitions II. III. IV. I. Uniform Circular Motion - an object that moves in a circle at
More informationPhysics 207 Lecture 10. Lecture 10. Employ Newton s Laws in 2D problems with circular motion
Lecture 10 Goals: Employ Newton s Laws in 2D problems with circular motion Assignment: HW5, (Chapters 8 & 9, due 3/4, Wednesday) For Tuesday: Finish reading Chapter 8, start Chapter 9. Physics 207: Lecture
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 informationCircular Motion PreTest
Circular Motion PreTest Date: 06/03/2008 Version #: 0 Name: 1. In a series of test runs, a car travels around the same circular track at different velocities. Which graph best shows the relationship between
More informationThe Force of Gravity exists between any two masses! Always attractive do you feel the attraction? Slide 6-35
The Force of Gravity exists between any two masses! Always attractive do you feel the attraction? Slide 6-35 Summary Newton s law of gravity describes the gravitational force between A. the earth and the
More informationDecember 2015 Exam Review July :39 AM. Here are solutions to the December 2014 final exam.
December 2015 Exam Review July-15-14 10:39 AM Here are solutions to the December 2014 final exam. 1. [5 marks] A soccer ball is kicked from the ground so that it is projected at an initial angle of 39
More informationChapter 4 Making Sense of the Universe: Understanding Motion, Energy, and Gravity. Copyright 2009 Pearson Education, Inc.
Chapter 4 Making Sense of the Universe: Understanding Motion, Energy, and Gravity How do we describe motion? Precise definitions to describe motion: Speed: Rate at which object moves speed = distance time
More informationPhysics 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 informationAn object moving in a circle with radius at speed is said to be undergoing.
Circular Motion Study Guide North Allegheny High School Mr. Neff An object moving in a circle with radius at speed is said to be undergoing. In this case, the object is because it is constantly changing
More informationRecap I. Angular position: Angular displacement: s. Angular velocity: Angular Acceleration:
Recap I Angular position: Angular displacement: s Angular velocity: Angular Acceleration: Every point on a rotating rigid object has the same angular, but not the same linear motion! Recap II Circular
More informationAP Physics 1 Chapter 7 Circular Motion and Gravitation
AP Physics 1 Chapter 7 Circular Motion and Gravitation Chapter 7: Circular Motion and Angular Measure Gravitation Angular Speed and Velocity Uniform Circular Motion and Centripetal Acceleration Angular
More information