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Found 235 results

  1. Hey future ib colleagues, I’m the next victim of IB! Its that time in my life where I actually have to think about what I want to be in life. I HAVE NO IDEA. Teachers are commanding (I’m over exaggerating a bit) subject choices for IB. I chose subjects that interested me other than actually dying and trying to figure out what career I want. Here it is: Higher level: Chemistry Arabic Psychology Standard level: Math English Physics can people who took these topics give me advice? Also what career can I get out of these choices??? Help!!!!
  2. I have my first rough draft of my math IA due in one month, and I am having trouble understanding if my topic is too simple, difficult, or vague for a Math IA, I would appreciate some advice. NOTE; I DO NOT TAKE PHYSICS, NOR WILL I BE TAKING IT. I realise many people say I should take on a topic that involves physics if I don't take it or completely understand the concepts I am using from Physics, but I have no choice. My math teacher told me I can't change my topic, so I'm stuck with it! My idea was to maximize the success of a volleyball serve using the concepts of projectile motion. I wanted to find the math behind the sport I've played since I was a child, and improve the actual serve. There is a direct correlation between the height of a serve and the distance it travels. The math I am planning to use is parabolas, differential calculus, and maybe showing the spread of distance data collected in an experiment. My math teacher told me it would be best to start with collecting data, as it would help to structure my IA better. My tutor mentioned I could use an online simulation to simulate results of a volleyball serve and the distance it would travel under the specifications given (which would not account for air resistance or other resistance factors). Or, I may have access to a machine we use during practices which launches volleyballs to mimic a serve, for passing repetition purposes. I could set the angle to release the volleyball at, which I would change (Independent variable), which would result in a change in distance (dependent). The speed would stay constant. I would measure the total distance the ball reaches based on the angle I release the ball at. My tutor said I could use a differential calculus equation to calculate the height at which my ball reached before its downfall. However, upon speaking with an IB physics teacher at my school, he believes that this would not work well in terms of relating back to projectile motion because projectile motion that we learn at school uses one-dimensional and two-dimensional scenarios. It does not take into account all resistances against the volleyball serve. My math teacher said this was fine, as long as I explain these limitations in my investigations, and suggested I could try another ball with a different mass/density to do the same experiment to show how the density of the volleyball affects the way it performs in my sport. Am I on the right track? I am confused and stumped as to what my next steps should be. All help and criticism are appreciated.
  3. Dear IB Physics students, Enjoy a quick but deep revision of the IB Physics syllabus:
  4. Hello everyone, I am doing my ee in physics. I'll get straight into it without wasting anyone's time. So basically in my results after conducting the experiment I have two values for the electron to mass ratio of an electron (e/m ratio). The independent variable was changed in the experiment and it was conducted in two parts therefore leading to two values, one for each part. The values are: 1.96*1011 ±8.63*1010 2.01*1011 ±1.09*1011 Finding the values required using the gradient of the graph results. Therefore to get the errors the uncertainty on the graphs were calculated using the range (largest gradient - smallest gradient) and some propagation of errors was used as well. That was all good. Now, the uncertainty as you can see is very large about 50% for each value. There are reasons for that but that is also ok. First question: To get the discrepancy, I first need an average of the two values. To get the uncertainty on the average I just took the average of the uncertainties (add both and divide by two). Is this correct? Second question: Now that I got the average value I calculated the discrepancy to be 13%. My teacher said that I should check to see if this lies within the %error on my results and if it does then my experiment is accurate. But the problem is I got the %error on the averaged results to be 50%. Does this mean that my results are accurate and not precise? How can it be accurate if the %error is so large, the discrepancy is bound to fall into the range of the error. Hope someone can answer these confusions. I have my ee due in less than two weeks. Sorry for the long post.
  5. Hi, so my essay has for title "An investigation of shear thickening material in military purposes." I am almost at the finish line, but there are still some things that are trying to kill me slowly. So in my essay I have to study the viscosity of shear thickening fluid called cornstarch, as a way to model liquid body armour used in the military. The first "step" of my ee is to first establish the shear thickening property of my liquid. TO do this i dropped a metallic sphere into a cylinder filled with the liquid and measure velocity of fall and velocity through the liquid. This allowed me to use an equation to find the viscosity and I also used this to find the shear stress using the velocity gradient rule that says, shear stress = viscosity * du/dy. (sorry if this looks messy but it's a very specific ee). The ISSUE that I am having is to be able to find literature data to support my own data. And that has proven difficult because while I have the literature data, my ee data does not match it at all. So I am stuck with data that just isn't working the way i want. And this is beyond trying to tweak numbers to get what i want, because the calculation process is legitimately insane. So let's say i have a relationship that says: shear stress = viscosity*shear rate, and that I plotted the viscosity and shear stress that I found, but when I do so, I almost get a constant value for the shear stress, which means that there are points superimposed over each other. This also means that I cannot produce a error bar for it because it would literally take over the whole graph and give me horrible presentation marks. While the shear stress is not even what i am interested in, when I find the shear rate by doing shear stress/viscosity (according to equation above), I get a graph of Viscosity in function of shear rate that is exponentially negative, which is the exact opposite of literature values, which show the viscosity in function of shear rate as positively exponential :/ So what do i do people? I worked countless hours on this and now I'm getting a crappy end result lol I need some outside help rn
  6. Hello! Could somebody explain the answers to the MCQs below please? Thanks!
  7. Hello people of IB Survival, I desperately need your help with brainstorming an idea for my Physics IA. I was thinking about doing an experiment on the affect of the angle made by a rooftop (which has crushed ice on it), on the range that the crushed ice covers - basically how further away it falls from the edge of the rooftop. This applies to real life since ice slipping off rooftops is an actual problem in countries that have those heavy snow fall days. But, I believe that we are meant to expand on the syllabus for the IA... and hence I think this RQ and this investigation would be too simple. Could I do this as my IA? Any suggestions would be appreciated x
  8. Hi all, I've been looking at the grade boundaries for IB Physics and have noticed their is no distinction between grade boundaries for different options (relativity, astrophysics etc...) in paper three. Does anybody know why this is, considering there are distinctions made between options for Mathematics HL which 'level' the playing field if one option was easier/harder than another. In this vain I'm thinking that it would be advantageous to go for astrophysics as it is by and large considered the easiest topic, however it'd be great to hear from people's past experiences of the options (the SL components preferably since I'm taking SL Phys). The class teacher is fairly stringent in her choice of relativity as an option, which I believe is thought to be more difficult, so would it be feasible to study Astro by myself (I'm on a mid 7 currently so am fairly competent)? Thanks,
  9. Hi! I want to do my extended essay on proving Newton's law of cooling. I want to use different liquids and do an experiment in order to compare what the law says to the real life situation. I'm on Math HL and Physics SL and I'm not quite sure where this ee could fit. My preference is math, but I'm afraid that maybe it's too experimental. What do you think? Thank you!
  10. I'm in physics HL and I have to do my IA soon. I found this interesting equipment in my laboratory that launches metal balls with a set speed or launch angle. I wanted to do something with this equipment and came up with the topic of comparing "launch angle vs horizontal range." I'm worried if this is too easy for a physics HL student. My teacher said it's better to stick with an easy topic and do the writeup extremely thorough. If this is too easy, I'm also considering to compare "launch height vs horizontal range." Could you please recommend which would be a better topic, and if both are too easy, could you please give me some inspiration for other experiments that could be done with this equipment? Thanks.
  11. Hi all! I'm planning to write my EE in physics but I don't really have a clear idea of how to work with the topic I'd like to cover. My teacher will only be taking 2 students & there are more than that planning to write theirs in physics so I'm kinda in competition with them to find stuff out ^^" SO if any of you guys have some suggestions go ahead & let me know! I'd like to work on something related to prosthetics seeing as I'd like to go into medical engineering sometime later on so any ideas in relation to that topic would be greatly appreciated! Thanks in advance!!
  12. I'm a month into IB and my classes so far are: HL Maths, Physics, Chemistry, and Arabic B; SL Economics and English LL. However, I've been rethinking what I want to do in the future and have been moving away from engineering/physics towards more Maths and computer science. If I decide to drop chemistry for comp sci, my schedule will be as follows: HL Maths, Physics, English LL; SL Comp Sci, Economics, Spanish AB. My school doesn't offer computer science Higher Level. I'm worried that this setup is not as strong as the first one with regards to me applying for mathematics at Oxford. Also, without CS HL, there is no way I can apply for CS at Oxford and be taken seriously. Thoughts?
  13. Can I get into engineering at university without Chemistry as a subject Im taking Maths HL and Physics HL because i really dislike Chemistry
  14. Hola fellas, first full copy of EE is due on Oct 5th (internal deadline-don't panic), and I was wondering how many resources like books or journals mates doing their ee in physics have. As you understand, the majority of the theoretical background for the experiment can be covered by 1-3 resources only, but our school's guidelines talk about a "vast range" of sources, without specifying the acceptable number for each group. I'd appreciate some input. Thanks a lot
  15. Hi everyone, I had purchased the online question bank for 2 years (It's still active for approximately 1 more year) and since I'm done with the IB, I no longer need it. If there's someone who would like to buy it, PM me All the best with the IB
  16. So I'm starting the actual IB program this year and I'm kinda looking for people I can talk to for help in my subjects this year. If you're taking any of these classes, hmu so we can start like a study group or something on the IBSurvival messaging system (especially if you live in Texas!!) 2017-18 CLASSES IB Biology SL IB History of the Americas SL French 3 IH IB Physics SL IB English SL Pre-Calculus IH
  17. I am currently in 10th grade and I have to decide between Physics and Chemistry or Biology and Chemistry for the this year. I Chose Physics and Chemistry however I'm not sure If I chose the right subject, due to the fact I'm okay in Math and I usually get a 5 or a 6 in Math in the MYP. I have to decide in a week or so if I want to stay in Physics or move to Biology before the class is too full. The physics in 10th grade is apparently really easy, however I know from my brother that Physics HL is very difficult. I'm stuck between them and have no idea which one to chose, I don't want to waste this year learning something I won't do in the IB, as I will miss out on everything they have learnt the year before. I really need help decided which to chose. My intelligence is average like any other person, my grade currently in the MYP from the last report was 6.44. I could really use help on deciding what I should do. I am a very hardworking student and I will try my best, but will my best get me a good grade in physics HL or do I have to be natural brighter than every other student. I could really use some help.
  18. Hi, this year i'm going to enter grade 11 and start my IB diploma program. I am aiming to study petroleum engineering in the future since i am great at chemistry. I was wondering if you can give opinions on 3 of the 6 subjects i have taken. Chemistry Hl, Physics SL, ESS SL. I am still not sure about the ESS... should i go for business,economy or even Design and Technology instead of ESS? All of these subjects are somehow useful. Thanks for reading.
  19. Hello... So I am about to finish my MYP year and I will be starting my Ib diploma next term. The subjects choice I have made are HL subjects: English A: lang and lit, Physics and business SL subjects: French ab initio, Math and chemistry I am really worried about english because in my MYP year, I have got mostly a 5. Do you think I should do SL instead of HL? What do you think about my IB subjects? (mainly in term of difficulty)
  20. I found an EE in physics on the internet with the exact same research question I am doing, the experiment and calculations are exactly the same and the discussion and conclusion are pretty similar as well. From my knowledge, not too many people have done the exact same research question, but those who have, probably have written a very similar EE to mine. Should I be worried about this? I'm trying to change my EE a bit so that it is not too similar to the one I found.My sypervisor is useless and I don't know what to do..
  21. HELP! I've just started Junior year, so IB has just kicked off and we have 2 weeks to change our courses if we wish. I have always been sure that I want to do 2 Sciences, first I picked Bio and Chem (both HL), then I changed my mind so I decided to do Bio and Phy (HL) because I've always loved physics. But now I am starting to change my mind again, because I've read that Bio and Phy aren't the best combination and I feel like with those classes my college majors all of a sudden gets way more limited. Help! Should I stay in Physics or change back to Chem??
  22. Hey guys, this is my first time using IB Survival and I found out that it is really beneficial for the IB student. My Physics EE revolves around the effect wheels have on the recoil momentum of a potato cannon. RQ: To what extent does the rolling friction of wheels affect the recoil momentum of a potato cannon after launch? I just want your opinion on my research question and my topic, and if you believe it can be improved please let me know. As for the experiment itself, I am planning on building a potato cannon (with and without wheels) and comparing these three things after the launch of the potato: the location of the cannon, the speed of the potato, and the distance the potato traveled. Please let me know if there is a problem with my approach and how it can be improved, it would mean the world to me. Thank you
  23. hey guys! I'm going into the IB program this year, and I have 4 HLs and 2 SLs. 2 of my 4 HLs are Bio and Physics. I recognize that this is going to a particularly rigorous course selection, so does anyone have any advice? Just so you know, my other courses are HL Psych, HL English, SL Math Year 2 (took year 1 in grade 10), and SL French.
  24. Hey guys! So Year 1 is right around the corner and I'm pretty excited but have recently ran into a problem. I've chosen physics SL for my Group 4 subject, but have recently considered switching to Biology SL since I've heard that it's less difficult. Is this true? Personally, I am quite decent at math and pretty good at memorising things. I have some background in biology (only the basics) and very little in physics. None of these are required for the University program I wish to attend (Econ/Business). I also dislike the sciences in general so I'd rather just choose the easier subject lollll. But I guess physics would be SOMEWHAT helpful since it's related to math, but then again, I've heard that it's quite difficult. Which of the two would you say is easier and which one would you recommend if I'm just trying to get the highest grade possible in my Group 4 subject? Thanks!
  25. Hey guys this is my first time using IB Survival and I found out that it is really beneficial for the IB student. My Physics EE revolves around the effect wheels have on the recoil momentum of a potato cannon. RQ: To what extent does the rolling friction of wheels affect the recoil momentum of a potato cannon after launch? I just want your opinion on my research question and my topic, and if you believe it can be improved please let me know. As for the experiment itself, I am planning on building a potato cannon (with and without wheels) and comparing these three things after the launch of the potato: the location of the cannon, the speed of the potato, and the distance the potato traveled. Please let me know if there is a problem with my approach and how it can be improved, it would mean the world to me. Thank you