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Name: Review of Mechanical Energy and Momentum Equations and When To Use Them! Category: Momentum and Collisions Date Added: 20170216 Submitter: Flipping Physics By the time students learn about all the equations for mechanical energy, momentum, impulse and impact force, they often start to confuse the equations with one another. This is a straightforward, simple look at all of those equations and when to use them. This is an AP Physics 1 Topic. Want Lecture Notes? Content Times: 0:14 Tacky Sweater Day! 0:22 Conservation of Mechanical Energy 0:54 Work due to Friction equals Change in Mechanical Energy 1:30 Net Work equals change in Kinetic Energy 3:01 Conservation of Momentum does NOT require the work due to friction to be zero 3:28 The initial and final points when dealing with momentum are predetermined 3:56 Impulse does not equal Impact Force Thank you to Sophie Jones and her family for letting me use six of their sweaters in this video! Next Video: 2D Conservation of Momentum Example using Air Hockey Discs Multilingual? Please help translate Flipping Physics videos! Previous Video: Impulse Comparison of Three Different Demonstrations Please support me on Patreon! Thank you to my Quality Control help: Christopher Becke, Scott Carter and Jennifer Larsen Review of Mechanical Energy and Momentum Equations and When To Use Them!

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Name: Review of Momentum, Impact Force, and Impulse Category: Momentum and Collisions Date Added: 20170126 Submitter: Flipping Physics An important review highlighting differences between the equations for Conservation of Momentum, Impact Force and Impulse. Want lecture notes? This is an AP Physics 1 Topic. Content Times: 0:17 Conservation of Momentum 1:01 An explosion is a collision in reverse 1:22 Impact Force 1:39 Impulse 2:16 Impulse equals 3 things 2:53 How many objects are in these equations? A big THANK YOU to Elle Konrad who let me borrow several of her old dance costumes! Next Video: Using Impulse to Calculate Initial Height Multilingual? Please help translate Flipping Physics videos! Previous Video: Demonstrating How Helmets Affect Impulse and Impact Force Please support me on Patreon! Thank you to my Quality Control help: Christopher Becke, Scott Carter and Jennifer Larsen Review of Momentum, Impact Force, and Impulse

Name: Kinematics Review for AP Physics 1 Category: Exam Prep Date Added: 02 March 2015  03:23 PM Submitter: Flipping Physics Short Description: None Provided Review of all of the Kinematics topics covered in the AP Physics 1 curriculum. Plus some bonus introductory stuff. Content Times: 0:26 Vector vs. Scalar 1:22 Component Vectors 2:04 Distance vs. Displacement 2:41 Speed vs. Velocity 3:04 Acceleration 3:26 Motion Graphs 4:29 Free Fall Graphs 6:31 Uniformly Accelerated Motion (UAM) 7:52 How to UAM 8:18 Projectile Motion 9:28 Relative Motion 10:00 Center of Mass Multilingual? View Video

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Name: (1 of 2) Mechanics  Review of all Topics  AP Physics C Category: Exam Prep Date Added: 09 May 2014  01:03 PM Submitter: Flipping Physics Short Description: (1 of 2) Mechanics  Review of all Topics  AP Physics C Content Times: 0:38 Vectors vs. Scalars 1:05 The Uniformly Accelerated Motion Equations 2:07 Acceleration 2:42 Velocity 3:03 Derivative and Integral Definitions 4:01 Projectile Motion 4:57 Newton's 2nd Law and Free Body Diagrams 5:41 Newton's 2nd Law using the Derivative 6:19 Impulse 6:59 Conservation of Momentum 7:34 The Force of Static and Kinetic Friction 8:31 The Direction of the Force of Friction 9:29 Work 9:58 Mechanical Energies (Kinetic, Elastic and Gravitational Potential Energy) 10:26 3 Equations involving Mechanical Energies 11:14 Power 11:51 The Conservative Force Equation 12:55 Center of Mass of a System of Particles 13:35 Center of Mass of a Rigid Object Want View Video

Name: (2 of 2) Mechanics  Review of all Topics  AP Physics C Category: Exam Prep Date Added: 09 May 2014  01:01 PM Submitter: Flipping Physics Short Description: (2 of 2) Mechanics  Review of all Topics  AP Physics C Content Times: 0:11 Circular Motion: Angular Velocity and Angular Accleration 0:37 Circular Motion: Centripetal Acceleration 0:56 Circular Motion: Arc Length, Tangential Velocity and Tangential Acceleration 1:58 Torque 2:24 Net Torque in terms of Angular Velocity and Moment of Inertia 3:04 Moment of Inertia 3:48 Linear, Surface and Volumetric Mass Density 4:34 The Parallel Axis Theorem 5:08 Rotational and Translational Equilibrium 6:07 Rotational Kinetic Energy & Rolling without Slipping 6:59 Angular Momentum of a Particle (on every AP Physics C test I have seen) 8:58 Angular Momentum of a Rigid Object with Shape 9:44 Net Torque in terms of Angular Momentum (and Conservation of L) 10:49 Newton's Universal Law of Gravitation 11:34 Kepler's 3rd Law (Do NOT Memorize It!) 13:19 Frequency and Angular Frequency 13:45 Universal Gravitational Potential Energy 14:34 Simple Harmonic Motion 15:18 Example Proving Simple Harmonic Motion and Deriving Period 16:43 Energy in Simple Harmonic Motion Want View Video

Name: (2 of 2) Electricity and Magnetism  Review of All Topics  AP Physics C Category: Exam Prep Date Added: 09 May 2014  01:00 PM Submitter: Flipping Physics Short Description: (2 of 2) Electricity and Magnetism  Review of All Topics  AP Physics C Content Times: 0:05 Ammeters and Voltmeters 0:44 Magnetic Force on a Moving Charge 1:12 The Right Hand Rule for Magnetic Force 2:05 Torque on a Current Carrying Loop in a Magnetic Field 2:22 Magnetic Force on a Curved Current Carrying Wire 2:55 Magnetic Force on a Current Carrying Loop in a Constant B Field 3:36 Net Force on a Charged Particle in a Constant Magnetic Field 4:09 BiotSavart Law 4:40 Magnetic Field inside a Solenoid 5:31 Magnetic Field r distance away from a Current Carrying Wire 5:57 The Magnetic Force on Two Parallel Current Carrying Wires 7:03 Gauss' Law for Magnetic Fields 7:36 Faraday's Law of Induction 8:23 Lenz' Law  the Direction of the Inducted emf (with example) 10:21 Motional emf 11:17 emf in a Generator 12:06 Inductance & SelfInduced emf 12:38 The emf in an Inductor 13:13 RL Circuit (Putting energy into and getting energy out of the Inductor) 15:29 Energy Stored in an RL Circuit 15:42 LC Circuit (Simple Harmonic Motion) 17:15 Conservation of Energy in an LC Circuit Want View Video

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Name: (1 of 2) Electricity and Magnetism  Review of All Topics  AP Physics C Category: Exam Prep Date Added: 09 May 2014  12:54 PM Submitter: Flipping Physics Short Description: (1 of 2) Electricity and Magnetism  Review of All Topics  AP Physics C Content Times: 0:25 Coulomb's Law (Electric Force) 1:25 Electric Field (Definition and Caused by a Point Charge) 1:58 Electric Field Lines 2:23 Linear, Surface and Volumetric Charge Densities 2:44 Electric Flux 3:12 Gauss' Law (Everybody's Favorite!!) 4:58 Electric Potential Energy 5:12 Electric Potential Difference (Definition and Caused by a Point Charge) 6:13 Electric Potential Difference caused by a Continuous Charge Distribution 6:47 Electric Potential Difference with respect to the Electric Field 7:09 The Electron Volt 7:30 Capacitance (Definition and of a Parallel Plate Capacitor) 8:16 Capacitors in Series and Parallel 8:55 The Energy Stored in a Capacitor 9:14 Current 10:09 Resistance and Resistivity 10:45 Electric Power 11:11 Terminal Voltage vs. Electromotive Force (emf) 12:04 Resistors in Series and Parallel 12:37 Kirchhoff's Rules with Example Circuit Loop and Junction Equations 15:55 RC Circuit (Charging and Discharging) 18:17 The Time Constant View Video

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Name: 8 General Suggestions for the Free Response Questions of any AP Physics Exam Category: Exam Prep Date Added: 08 May 2014  09:21 AM Submitter: Flipping Physics Short Description: 8 General Suggestions for the Free Response Questions of any AP Physics Exam After 11 years of teaching AP Physics, going through countless old exams and grading an equally innumerable number of student solutions to Free Response Questions, here are my suggestions to help future students out. AP® is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product. Content Times: 0:21 #1) PreRead All Free Response Questions 0:56 #2) Write Legibly 1:47 #3) Organize Your Solutions and Label All Parts 2:32 #4) SHOW ALL YOUR WORK!! 4:06 #5) Do Not Break Forces in Free Body Diagrams into Components 4:41 #6) Answer Every Part of Every Problem 5:48 #7) Dimension Your Answers 6:11 #8) Leave Algebra Heavy Solutions for Later Next Video: Review of all AP Physics C Mechanics Topics  Video 1 of 2 All of my inclass AP Physics C lectures with Lecture Notes are at: 1¢/minute I know "equally innumerable number" perhaps seems illogical, however, it get's my point across, so deal with it. AP® is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product. General Suggestion #9: Read Carefully. I made the video you are currently watching and then I proceeded to make video solutions to the 3 Free Response Questions of the 1998 AP Physics C Mechanics Exam and I learned a valuable lesson. I should have given 9 suggestions. I should have added a 9th suggestion: "Read Carefully." I find it quite funny that I didn't read carefully enough because (1) for years it is something I berated my students about and (2) it is something I did not do on the third free response question. You see, I didn't answer part (a) completely. I missed the small word "magnitude". I simply drew the forces in the Free Body Diagrams, however, I didn't explicitly solve for the Magnitudes of the Forces. All the magnitudes of the forces are in my solutions because I had to find each one to solve the rest of the problem; however, I didn't quite answer part (a) correctly. I don't know how the AP graders would grade my solution because all the physics is there, just not in the right places; however, I do feel they would not have given my solution full credit. So, please learn from my mistake and read the questions carefully. Don't have to eat humble pie, like me. View Video
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Name: Review of all Electricity and Magnetism Dimensions  AP Physics C Category: Exam Prep Date Added: 08 May 2014  09:17 AM Submitter: Flipping Physics Short Description: Review of all AP Physics C Electricity and Magnetism Dimensions This is a review of all of the dimensions used in AP Physics C  Electricity and Magnetism. Want a Table of Friends? Want to know what a View Video

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Name: Review of all Mechanics Dimensions  AP Physics C Category: Exam Prep Date Added: 08 May 2014  09:13 AM Submitter: Flipping Physics Short Description: Review of all AP Physics C Mechanics Dimensions This is a review of all of the dimensions used in AP Physics C  Mechanics. Okay, maybe it doesn't cover some of the basic dimensions, however, if you don't know that linear velocity is in furlongs per fortnight, then I probably can't help you. Want a Table of Friends? Want to know what a View Video

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The other night I watched the movie Black Hawk Down, which is based on the book of the same name (written by Mark Bowden) which was based on the actual events of the Battle of Mogadishu. The short story is that the US sent Army Rangers, Delta Force operators and pilots from the 160th Special Operations Aviation Regiment to remove Somalian dictator Mohamed Farrah Aidid from power and in October of 1993 they conducted a raid with the intent of capturing two of Aidid's highest advisers. The operation was supposed to take no longer than an hour and incurr no casualties but after a series of complications it became a full battle lasting through the night and into the next morning. The main problem that occurred was that one of the 8 Black Hawk helicopters crashed after losing its tail rotor, which is where physics comes in. Most helicopters have a single horizontal main rotor and a vertical tail rotor. A two rotor system is necessary because the main rotor produces torque in on direction which would cause the helicopter to spin out of control (a notable exception is the NOTAR system which involves a single main rotor and a ducted fan in the tail takes the place of a second rotor). The tail rotor provides a counter torque force (static equilibrium in one axis to move in a straight line) and rotational turning in the xz plane (other configurations include NOTAR and double main rotor configurations such as 2 coaxial rotors, angled meshed rotors, and front and back or side to side flat rotors). Anyway, in the movie (and real life) the Black Hawks tail rotor is blown off by an RPG causing the pilot to lose control as the craft began to spiral uncontrollably due to unopposed torque and crash. The operation was then updated to include the rescue the crew of the downed helicopter (who all unfortunately died). In the process many Americans were wounded or killed and a second Black Hawk was shot down the same way as the first causing even more problems. Having read the book In the Company of Heros, also by Mark Bowden, which is the true story Michael Durant (the pilot and only survivor of the second crashed helicopter who was taken prisoner and held for 11 days with a broken back and leg) I found the movie to be very close to the actual events and included the shootout in which two delta force snipers sacrificed their lives to protect Durant and a conversation that Durant actually had with one of Aidid's advisers. By the time the battle was over 18 Americans lost their lives with another 80 wounded. A dark day for the American military but a true display of courage on the part of all the soldiers involved.

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Diagnostic Guide for the June 2013 Regents Physics Exam I use these to help students prepare for the Regents Exam each spring. Students take the exam, which is scored by the instructor, then students are directed to use the diagnostic guide to determine the percent of questions they answered correctly under each topic. This information is then used to develop a personalized action plan to help each student focus their review efforts in areas that will return the biggest "bang for the buck."Free 1 review

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File Name: Breakdown of June 2013 Regents Physics Exam File Submitter: FizziksGuy File Submitted: 19 Jun 2013 File Category: Exam Prep Diagnostic Guide for the June 2013 Regents Physics Exam I use these to help students prepare for the Regents Exam each spring. Students take the exam, which is scored by the instructor, then students are directed to use the diagnostic guide to determine the percent of questions they answered correctly under each topic. This information is then used to develop a personalized action plan to help each student focus their review efforts in areas that will return the biggest "bang for the buck."

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Guide sheet to allow students to break down their performance on the June 2005 Regents Physics Exam by unit. Upon completing and scoring the exam, students fill out the diagnostic guide to determine their strengths and weaknesses. Once these areas have been identified, students may focus on areas with the greatest opportunity for improvement in order to differentiate their review time to their individual needs. Link to NY Regents Physics ExamsFree
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Guide sheet to allow students to break down their performance on the January 2007 Regents Physics Exam by unit. Upon completing and scoring the exam, students fill out the diagnostic guide to determine their strengths and weaknesses. Once these areas have been identified, students may focus on areas with the greatest opportunity for improvement in order to differentiate their review time to their individual needs. Link to NY Regents Physics ExamsFree
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Guide sheet to allow students to break down their performance on the January 2006 Regents Physics Exam by unit. Upon completing and scoring the exam, students fill out the diagnostic guide to determine their strengths and weaknesses. Once these areas have been identified, students may focus on areas with the greatest opportunity for improvement in order to differentiate their review time to their individual needs. Link to NY Regents Physics ExamsFree
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