Let's explore the concept at the heart of Newtonian gravity: Gravitational Fields. This class presents all the basics you need to get a good understanding of gravitational fields. To view it in full (10 videos, about 80 minutes in total), please visit the following link: https://skl.sh/2YNfKt6 *********** SUMMARY *********** When you hear the words gravitational field, do you know what is meant by the word field? This will be made very clear in the first video. You’ll see how this concept is actually really simple. After you’ve understood what a field is, we’ll dive deep in gravitational fields. First, we describe the quantity associated with every point of gravitational field, the gravitational field strength. This will be followed by series of exercises aimed at making you comfortable with this notion. In the following lesson, we blend in some vector mathematics: yes, the gravitational strength is a vector quantity. It also has a direction. Again, many exercises will be proposed to train your new knowledge. And finally, in the last videos, we discuss a way to represent a gravitational field as a whole using the concept of field lines. ********** CONTENT ********** Video 3.0: Introduction. Video 3.1: What is a Field? Video 3.2: Gravitational Fields. Video 3.3 and 3.4: Exercises related to Video 3.2. Video 3.5: Gravitational Fields are Vector Fields. Video 3.6 and 3.7: Exercises related to Video 3.5. Video 3.8: Gravitational Field Lines part 1: Radial Fields. part 2: Fields created by 2 masses. part 3: Uniform Fields. Exercises are provided also as pdf files under two forms: Full picture (to view on a screen), or printable (so that you can work on the exercises away from the computer). Answers are provided also in a pdf document. ****************************************************************** This class is part of a larger course named “Gravity, The Basics”. ****************************************************************** “Gravity, The Basics” explores the elementary notions of Newtonian gravity. Class 1: “Linear Motion” (because being comfortable with this notion will allow you to make the most of the full course). This class can be taken by itself. Class 2: “Newton’s Universal Law of Gravitation”, which you can consider as a doorway to the deeper dive we will carry out in the next classes. Class 3: “Gravitational Fields”, the core of this course. Class 4: “Circular Motion”, to prepare you for the section on orbital motion. Class 5: “Orbital Motion”, to master the motion of planets around their star! Class 6: “Wrapping-up and Gravity Quiz” *********************** LEVEL OF THIS CLASS *********************** The content of thi ... https://www.youtube.com/watch?v=LcL59XPJlbc

EM induction finally explained in simple terms! This second episode details the basic principle of EM induction: How to generate electricity by moving a conductor in a magnetic field. Watch this video: if suddenly you were moved back in time thousands of years ago, you would know how to produce electricity: Take a piece of metal, move it around a magnet the right way and you’ve got yourself a battery! The video explains what happens within the metallic bar when you move it in a magnetic field, and how this results in an emf across the bar. Then an example is shown where a bar is sliding on metallic rails, which are themselves connected to a load (Resistance or lamp bulb). This set up is an electric circuit where the battery is the moving bar! We prove that the mechanical energy provided to move the bar is equal to the electrical energy dissipated in the load (Conservation of energy). In the first episode: https://youtu.be/N44pn9rYtbE, we gave a basic example of application of EM induction (The dynamo in a lamp), as well as the three basic principles to be understood in order to study EM induction in good conditions _ The effect of a magnetic field on a moving charge (F= qvB), _ The effect of an electric field on a charge located between two charged plates (F=qE), _ The effect of a magnetic field on a wire carrying an electric current (F=ILB). This course is based on the IB Physics HL program. If you enjoy this video and find it useful for your studies, please like the video and subscribe to the channel! Edouard Andre Reny, PhD in material science, is a private tutor in Physics. Website: http://www.physics-tutor.nl Background music composed and produced by Edouard Andre Reny. Website: http://www.synaptic-machines.com ... https://www.youtube.com/watch?v=l_-OfNT0B2M

How to Solve Physics Problems with Forces – Physics – Mechanics Have you ever been stuck when trying to answer a mechanics question involving forces? Maybe you were clueless on how to begin, or often get stuck at a certain point? Well, this course is there to solve that problem! This course presents a 5-step technique that can guide you through any physics problem involving force. Access the course here: - On Udemy (Udemy is a pay per course platform - no subscripion): https://www.udemy.com/course/solving-physics-problems-with-forces/?referralCode=4EB9B62F16AD18836830 - - - - COURSE STRUCTURE - - - - This course is structured in 3 sections. The first three episodes contain a summary of the 5 steps and 2 solved examples. The goal of this first section is to for you to get an overview of the technique before diving into the details. The second section consists in 6 lesson videos. The process of applying each step is presented in detail and in various situation. The conceptual and mathematical tools required to carry out each single step are also presented (1 step = 1 video + 1 extra video about the manipulation of vectors). You will learn here how to draw a free body diagram, how to express a resultant force mathematically, how to manipulate vectors, when and how to apply Newton’s Laws etc… The third section is your play-ground! You will find 8 exercises for you to train your skills in applying the 5-step technique to solve physics problems. After giving you a chance to solve each question yourself, the presenter carries out a detailed correction on the white board. This section also contains a video lesson about mechanical friction forces. If you follow this class till the end, and carry out all the exercises diligently, you will gain more than just the ability to solve mechanics problems. Hopefully, you will realise that Physics is actually pretty easy to handle: the patterns of thinking presented in this course are commonly used in many areas of physics, and could be very useful to you in your studies. The level of this class corresponds to the last years of High School Physics Programs. This makes it an ideal tool as support for the lessons you get at school, and to prepare any High School Diplomas in Physics, like for example IB Physics, A-Level Physics, AP Physics etc. - - - - DETAILED CONTENT- - - - *** Section 1 *** The 5-step technique to solve physics problems with forces (Introduction) Episode 1: The 5-step technique in a nutshell Episode 2: Solved example in 1 dimension Episode 3: Solved example in 2 dimensions *** Section 2 *** The 5 steps in detail (Lesson Videos) Episode 4: Free Body Diagrams (Step 1) Episode 5: Defining the Axes (Step 2) Episode 6: Manipulating Vectors Episode 7: Expressing the Net Force (Step 3 ... https://www.youtube.com/watch?v=0S5S6LDBciw

Momentum is a concept very commonly used in Physics. You encounter Momentum in the classroom, in scientific papers and text books, in conferences, on TV, in movies, in scientific Youtube Videos etc. You might already know that the momentum of a body is the product of its mass and its velocity. But what does such a product really mean? Do you have a good feel for what momentum represents? This video attempts to give you just that using simple examples. Then, it dives a little deeper. First it explains why momentum is a vector quantity, and how to determine the momentum of a system consisting of multiple parts. After this, the video shows how to apply the principle of conservation of momentum to such a system with a practical example: Bob and Alice crashing onto each other while ice-skating! Hopefully, this video will give you the keys to your own feel of what momentum truly represents and how to manipulate it in order to solve problems in physics. The level in Physics / Mechanics required to fully enjoy the content of this video is beginning high school (Grade 11, 1ere scientifique, IB Physics, A-Levels etc.) This video is produced and presented by Edouard Reny, Ph.D. in materials sciences and private tutor in Physics. Edouard provides one-on-one private tuition in Physics (face to face or by Skype). If you wish to contact him, visit his website: https://www.physics-tutor.nl/ Music composed and produced by Edouard Reny © 2020 (https://synaptic-machines.com ... https://www.youtube.com/watch?v=FhQgK1Vtchs