Physics: Topic 1 - Measurements and Uncertainties. But studies of distant supernovae revealed that the universe today is expanding faster than it was in the past, not slower, indicating that the expansion is accelerating (Big Rip). When the star is expanding, it rises in temperature and therefore rises in pressure. D.1.2.17 The diagrams represent three positions, X, Y and Z, of a spectroscopic binary star system which contains stars A and B. During this time, photons could not travel undisturbed through the plasma because they interacted constantly with the charged electrons and baryons, in a phenomenon known as Thompson Scattering. • Over 30 IB Physics Option D worked examples with accompanying problems to fill knowledge gaps and build confidence through practice. The Jeans mass criterion is determined by asking… ... IDOCPUB. Ib Notes: Sl Physics Definitions + Astrophysics. Hi Dad(? Basic Electromagnetism. This page contains fully editable PowerPoint slideshows for the current International Baccalaureate (IB) course in Physics. Standard Level - SL or Higher Level - HL. That’s one bright star! Roughly 80 percent of the mass of the universe is made up of material that scientists cannot directly observe. IB Astrophysics - intro to the universe - Flippingphysics by nothing… This looks like an amazing app, and I’m sure I’ll use it a lot in the future, one small thing: in the second table in “Measurements and Uncertainties”, pico and femta have 10^12 and 10^15 assigned to them instead of 10^-12 and 10^-15. Keep up the good work. If i may ask, how many marks were you awarded for it ? David, you are magic. Revision:Astrophysics; Revision:Astrophysics 1; Revision:Atomic and Nuclear Physics; Revision:Atomic and Nuclear Physics 2 ; E. Revision:Electricity and Magnetism; E cont. The greater the value of the Hubble constant at a given cosmological time, the faster the universe is expanding at that time. Such a universe is “open”‘. Save for later. Most scientists think that dark matter is composed of non-baryonic matter. If the density is low enough, then the universe is open. ​Topic 1: Measurement and uncertainties​, Topic 7: Atomic, nuclear and particle physics, Topic 12: Quantum and nuclear physics (HL), https://en.wikibooks.org/wiki/IB_Physics/Astrophysics_SL#F.1_Introduction_to_the_Universe, http://sciencevault.net/ibphysics/astrophysics/astrophysicsindex.html, http://study.com/academy/lesson/the-different-types-of-supernovae.html, http://hubblesite.org/hubble_discoveries/dark_energy/de-type_ia_supernovae.php, http://www.universeadventure.org/big_bang/cmb-origins.htm. where H is the Hubble constant for a given cosmological time (such as the present). The current critical density is approximately 1.06*10^-29g/cm^3. IB-PHYSICS. The following 23 pages are in this category, out of 23 total. Solar System: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.. Interstellar: It is referred to as a the space between stars, roughly 5-20 Light-years(Ly) apart.. Stellar Cluster: It is a group of stars that are born out of the same clouds of gas and that exert a gravitational force on each other. While these notes … That would be very helpful since it is the only option i studied with my class and I am kind of lost aaaa the exam is in two weeks …. ), glad you’ve found my notes helpful. Key features of the Physics SL & HL Astrophysics study guide: • A thorough review of the included topics written in an easy-to-follow format to guide your exam preparation for IB Physics Astrophysics. by the owner - the prime tutor. Just think there’s a typo in mechanics: “Friction force=µs *Normal force for objects that are moving.” Is it possible for you to cover option C (imaging) as well? What tips would you give me as I’m about to start my IB .. IB Physics Notes. This is really helpful. The top shows the evolution of a Type Ia supernova while the bottom shows the evolution of a Type II supernova. Example. Hi David! ​Topic 1: Measurement and uncertainties​, Topic 7: Atomic, nuclear and particle physics, Topic 12: Quantum and nuclear physics (HL), https://www.ibrepository.com/IB%20DOCUMENTS/Data%20%26%20Formula%20Booklets/Physics/Data%20Booklet%20-%20English.pdf, http://ibdocuments.com/IB%20DOCUMENTS/Data%20&%20Formula%20Booklets/Physics/Data%20Booklet%20-%20English.pdf. I am going to be going to Grade 11 in September, and I already feel ready to tackle this subject: your notes are very nicely organized and super helpful: thank you for taking the time to do this! We offer specialist tuition in your own home using only graduates with maths and physics Degrees. Thanks in advance. Hey ! Rotation following Kepler’s 3rd law is shown above as planet-like or differential rotation. Uploaded by: Nabs; 0; 0; December 2019; PDF; Bookmark; Embed; Share ; Print; Download. Cepheid variable: A star with a … To be clear znotes.org is a non profit organization and you will be listed as a contributor on our website in exchange. Shouldn’t it be “directly proportional to mass”? As the universe expanded and cooled, electrons began to bind to nuclei, forming atoms. Ib Notes: Sl Physics Definitions + Astrophysics. I really appreciate this website! Some of these might be obvious things, but I think it’d be useful to have them nonetheless! However, the course should be accessible to students with just a general introduction to physics. The IB wishes to thank the educators and associated schools for generously contributing time and resources to the production of this guide. All the best. For instance, if you want to study Relativity, use Command + F to bring up the search function. LET'S CONTRIBUTE. 🙂. Thank you David. Hi, David! If there is enough matter (gravity) to recollapse the universe, the universe is “closed'”. Current and Drift velocity I=nAqv. Black hole: A singularity in space-time. ib-physics.net is a student initiative to provide free material to help international students prepare for the IB exams. IB Physics Standard Level Revision Notes; IB Physics Higher Level Revision Notes; A. Why only be Studious when you can become the Topper? When the white dwarf reaches 1.4 solar masses, or about 40 percent more massive than our Sun, a nuclear chain reaction occurs, causing the white dwarf to explode. Without your site, I don’t think my last minute revising would’ve been nearly as effective or even possible — THANK YOU FOR POSTING THIS SITE — it seriously has gotten my through one of the toughest exam periods yet when I felt so tired of trying to scour the internet for resources. If W < 1, the universe is open; if W > 1, the universe is closed. Below are some amazing resources to prepare for both SL and HL Physics. I would appreciate if you make similar apps for other subjects like Maths . A. Using the inverse square law, they can compute the distance to the supernova and thus to the supernova’s home galaxy. The other can be a giant star or even a smaller white dwarf. A diagram on the difference of distance and displacement. SPREAD THE WORDS. It would be really helpful if you can give me tips on how to perpare for e-assessments which is coming up in may. Two hydrogens fuse to form deuterium plus a positron and a neutrino. Type Ia supernovae occur in a binary system — two stars orbiting one another. From Wikibooks, open books for an open world < IB Physics. In Astrophysics Part D.2, under the sub-section: Stellar Characteristics and Evolution, instead of “Once the star runs out of helium, the core collapses”, did you mean when the star runs out of hydrogen? Notice that the orbital speeds falls off as you go to greater radii within the galaxy. I’ve updated the notes to address many of them. I would love if you could give us written permission to use your content in our guides directly from all your websites. please answer. All together now! First assessment 2016. Glad you found my notes helpful! It only means that the same types of structures — stars, galaxies, clusters, and superclusters — are seen everywhere. I am a college student but loved to revise these. The introduction of neutral matter allowed light to pass freely without scattering. I got a 7 and here’s how you can too! Hi! If further fusion takes place, the star becomes a red giant. All stars follow a simple proton-proton cycle in order to maintain equilibrium between gravity and pressure. IB Physics Unit 2 Work, energy and power Notes Principle of conservation of energy “Energy is never created or destroyed, only transformed (e.g. Relevant undergraduate courses are (for relevant schedules, example sheets and exam questions, refer to the General Resources): Part IA Differential Equations, Vectors & Matrices, Vector Calculus, Dynamics & Relativity; Part IB Methods Unreviewed. Upload; Login / Register. Series and Parallel Circuits . Within our own universe, there exist many celestial bodies each with their own unique properties; the planets being no exception. Because the chain reaction always happens in the same way, and at the same mass, the brightness of these Type Ia supernovae are also always the same. In the popular astronomy magazines, you will probably see the mass density of the universe specified by the symbol “W”, also known as the ratio of the current density to the “critical density” described in the next paragraph. Single star: A luminous sphere of plasma held together by its own gravity. Downloadable PDFs covering Motion, Forces, Work/Power and Momentum topics. A critical density universe has “flat” curvature. (F=ma)”. The universe is also isotropic. All wiki articles on: Ib physics revision notes. Search for: Close Menu. IB Physics Revision notes for IB Physics. Maths Tuition for every A Level and International A Level(CIE/Edexcel) module - Core C1/C2/C3/C4, Mechanics M1/M2/M3/M4/M5/M6, Statistics S1/S2/S3/S4/S5/S6, Further Pure FP1/FP2/FP3/FP4 and Decision D1/D2, and physics tuition for every AS and A2 module and topic - Astronomy, Forces and Motion, Electrons and Photons, Waves and Oscillations, Nuclear and Medical Physics. I’ve corrected that part to make it more clear – thanks for pointing it out! Thank you very much! About Us. P 1 = P 2 + hρg.. (There’re diagrams on the course book) All images are under copyright that allows them to be shared. The surprising thing as there is very little visible matter far beyond the center of the galaxy. The orbital period of the Sun around the galaxy gives us a mean mass for the amount of material inside the Sun’s orbit. The cluster has a much less well-defined overall shape. Kirchoff’s Laws and Potential dividers . This is almost like a lifesaver. Description. For any feedback or comments, contact a fellow IB alumni: Maria Eduarda Lopes | mariaticilopes@gmail.com Disclaimers: the IB organization does not endorse this website's content. About the notes. Hey man! The Jeans mass criterion is determined by asking when the magnitude of the gravitational potential energy exceeds the magnitude of the gas’s kinetic energy. Most stars that are eight or more times the mass of our sun die as a Type II Supernova. 6. Large telescopes have been used to count faint and distant galaxies in different direction and the numbers are always statistically the same. Found a minor formatting error: under ”Graphs describing motion” in Topic 2, the graph header isn’t made to be in the same format as the rest of the graph headers. Hi Ida, glad you’ve found my notes useful. Hi Athul, I might know a site that may be helpful for Physics. 3. Visit the post for more. Love your notes, they are really helpful for final preps… Are there any notes on Relativity (With HL)? Free Notes / Resources EE3. Free IB Resources Hundreds of Free Videos and Notes, Browse them by Subject. Hi Andrew, glad you’ve found the website helpful. IB Physics; Electricity and Magnetism notes 5.1 Electric Fields. Can this be enough to be the sole study for topics and I then can immediately jump into solving questions from past papers and workbooks? The white dwarf will begin to pull material off its companion star, adding that matter to itself. Glad I can help, Thank you! I actually take notes from your notes on this site, even. There are two aspects of the cosmological principle: How do we measure the amount of mass in the universe? 🙂. As a result, the universe was opaque. That’s exactly the same as my subjects, except for Mandarin though! Subject Lead Vishnu Nittoor … As the universe expanded, the light was stretched into longer and less energetic wavelengths. Supernova explosions result when the cores of massive stars have exhausted their fuel supplies and burned everything into iron and nickel. Eventually, gravity would draw the high-density fluctuations into even denser and more pronounced ones. Amazing website, really really helpful. Hi, The Standard Level units are listed below and Higher Level units will be added to this site by January 2020. For rectifications reach out to the subject lead. 4. 2 Physics guide Introduction The Diploma Programme The Diploma Programme is a rigorous pre-university course of study designed for students in the 16 to 19 This means that the mass of the galaxy increases with increasing distance from the center (radius). Hi there ! Glad you found the notes helpful – ah yes, I fixed it, thanks for pointing it out! What were your other two HLs? Lectures notes for Part II Statistical Physics by Professor Tong. 🙂. This amounts to six hydrogen atoms per cubic meter on average overall. Hi Shruti, glad you’ve found it helpful! Click on the video below to be inspired (^&*(!!) Complete this table of stellar properties. However, plotting the curves of observed data points, the rotation curve of the galaxy stays flat out to large distances, instead of falling off as predicted in the figure above (planet-like rotation). Energy and Power in Circuits . Ib Notes: Sl Physics Definitions + Astrophysics [2nv8716x9olk]. You’re right. Known as dark matter, this bizarre ingredient does not emit light or energy. I am an M17 alumnus and finally I am able to share my physics notes (my maths HL notes were already posted here).It is not perfect and the beginning is in pretty bad quality (content wise), everything else should be good though. Powerpoints for the following units: Jump to: Physics. Further fusion only takes place in heavier stars, otherwise the pull of gravity forces the star to contract and cool to a red dwarf. To avoid messing up the set of notes posted below, I have created a separate page to populate as I go. But what do these minute fluctuations mean? Or only Android yet? Hi Johnson, it is Android only unfortunately. A deuterium and a hydrogen fuse to create helium and a gamma particle. This site hosts comprehensive IB Economics revision notes my study group and I made for the post-2013 examinations syllabus (currently SL material only). There is an error in Option D:Astrophysics. If there is one topic that you need to review, use the Command + F function on your keyboard to search this guide for that topic. Hi Saineeraj, perhaps you can give https://webpagetopdf.com a try. The hydrogen around the core burns more fiercely and causes the outer part of the star to expand and cool down. One of the stars in the system must be a white dwarf star, the dense, carbon remains of a star that was about the size of our Sun. The idea of a uniform universe is called the cosmological principle. 🙂. The required material for the IB Physics SL Option E. Taken from the "First Examinations 2009" IB Physics Guide. Hey, your notes are really helpful and finals is in a month.. I’m unsure of this, but under stellar evolution on HR diagrams second paragraph, I think the first sentence is supposed to be when star runs out of ‘hydrogen’ instead of ‘helium’… correct me if i’m wrong.. This is where the Hertzsprung-Russell diagrams were derived from (see later section). It should be correct now. Standard Grade Physics Revision Notes; U. We Tutor to These Levels and Qualifications: ... IB (International Baccalaureate). System in which we live in is merely a speck of dust in core. For e-assessments which is coming up, and practice tests are constantly.. Text that are somewhat more advanced and that can be made that will identify an or! A. IB notes: SL Physics Definitions + Astrophysics [ 2nv8716x9olk ] to these... A gamma particle pull material off its companion star, adding that matter to itself Relativity will be added this... Text sizing at the moment ) syllabus Nail IB amp ; * (!... It more clear – thanks for pointing it out, loved your site to review my is! 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