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Found 604 results

  1. Hello! So I will be attending UWC next year and I want to do a physics major in university in the US or UK. I have already completed 2 years out of 3 years of high school so I already have good kbowledge in math, physics, chemistry, biology, technology, history, geography, french, arabic, english. I am pretty good in scientific subjects so here is my list of potential ib subjects next year: Math HL (further studies) Physics HL English A Environmenal and Social Studies SL (as a social science) French B Computer Science SL Does this list make me elligible for a physics major? And should I take chemistry SL instead of Computer Science SL? Help would be appreciated
  2. Hi! im wondering how to solve these projectile motion problems: A particle is launched horizontally with a speed of 8.0 m s−1 from a point 20 m above the ground. a Calculate the time when the particle lands on the ground. b Determine the speed of the particle 1.0 s after launch. c Find the angle between the velocity and the horizontal 1.0 s after launch. d Determine the velocity with which the particle hits the ground. A soccer ball is kicked so that it has a range of 30 m and reaches a maximum height of 12 m. Determine the initial velocity (magnitude and direction) of the ball
  3. Hi guys! For my IA, I'm investigating on the relationship between time fall a parachute to fall and its surface area, but I can't get a linear relationship. The parachute didn't reach the terminal velocity, so the velocity is changing when the A is changing and it's also accelerating downwards. What can I do? Help please!!!!!
  4. For my IA this year, I was given the topic of exploring surface area and drag. The assessment requires me to produce a graph with a meaningful gradient. I am using the drag equation to formulate my graph (where Fd = 1/2 p u^2 Cd A) and when I plot drag force against area I get the gradient as (2 Cd/ pu^2). My question is if this gradient is useful? Surely the graph implies the the drag coefficient is a constant, but surface area is changing. Any improvements and/or changes to my possible graph would be much appreciated.
  5. Kek

    Physics EE

    For my physics EE I decided to look at gravity and stability(my topic) and "how does the loading of a truck affects the shift of the central gravity and how that shift affects the tipping point of a truck if its in a stationary position?"(research question) . For my experiment I've used blocks of different masses that I placed on a aluminium platform using different variation. Where aluminium platform is like a truck platform and the blocks that I used act like loading. So basically I placed them in different ways and looked at the which angle each object will tip over. In my essay I will show how does the central gravity shifts and how it actually affects the tipping point. Furthermore, I want to convert the masses that I used into real life masses, to show that if the mass goes over the limit mass then its becomes dangerous. I am also connecting it to many real-life situations from Africa, where many trucks are overloaded and very often they tip over on the road. I will also explain how can suspension and speed decrease or increase the tipping point. Could someone give me any ides how I could improve my ideas or even my topic or research question, so my essay is not that broad. Thanks
  6. Hello, I have been thinking about what I would like to do for my extended essay and I have come up with two ideas that I would like to share to you to ask for some advice about whether or not these are suitable for a possible EE in physics; The first idea is about the science behind projectiles where I was thinking about researching the science behind the centre of gravity and the centre of pressure while the rocket is in flight and how this can affect the stabilisation of it. However, my Physics teacher told me that it would be too difficult to measure which means that I had to do it with paper airplanes instead. my research question for this would have been something like; "In what ways does the position of the centre of pressure and centre of gravity affect the stability of a projectile rocket launched in the air?" OR "How is the stability of a projectile rocket affected by the position of the centre of pressure and centre off gravity as it is launched in the air?" Therefore, the second idea that came up was about doing it about angular momentum, and explain this while doing an experiment with a rotating bicycle wheel. This could be very interesting because I could look at how different mass and diameter of the wheel changes the amount of angular momentum it emits when rotated. Here my topic and research question will look at how the sizes of different rotating wheels affect the angular momentum of the person holding it in his hand; "How does the diameter of a wheel affect the angular momentum of a person sitting on a stool?" OR "In what ways does the radius of a wheel affect the angular momentum it’s acting on a person?" In my opinion, the second idea seems much more fun and interesting to do. What do you think, if you have some advice please tell me. Thank you!
  7. Hi, these are my options so far... HL: Physics, Biology, English SL: Econ, Spanish, Maths AA I'm worried about taking two sciences at HL. No one at my school has done that before and I'm afraid it's going to be too difficult (I want to get a good grade of ib). I am fascinated by physics and biology, plus I am thinking about going to medical school or studying physics so I know that both courses will help me decide what I want to study. Has anyone taken two sciences at HL or do you know anyone who has? I welcome any suggestions! Thank you
  8. Okay, I'm new here and I need help regarding my IA. My experiment is as I've described in the title, my problem right now is, I couldn't get the data similar to what I've researched. From my background research, the graph should be in "n" shape. Increase a bit in the beginning and then it should decrease as density increases. What I've got is complete opposite of that. I got a "v" shaped graph. And now I' stuck as I cannot make any sound argument. Has anybody else carried out this experiment before? I really appreciate it if anyone can share their thoughts regarding my IA. The materials that I've been using are oil, water, methanol, detergent and honey. All constant at 100ml volume. And of course, by using the same wine glass.
  9. Hi all. For my Physics EE, I am hoping to do an experiment that relates my IV with my DV, and comparing the relationship I find in my experiments to a theoretical relationship defined by an equation. My only problem is, this experiment is not uncommon, and is frequently done (thankfully, it is usually done at university level, but it's actually quite simple). I'm worried that I will get marked down for a lack of creativity, so I tried to add a twist to my experiment, and show how the theoretical relationship isn't always accurate in all situations, and altering one of my other variables to make the theory more valid. How does this sound? Will I get marked down harshly due to a lack of originality? I'm really desperate for some help, anything is appreciated!
  10. elif_rana

    physics ia

    Hi, i need to find a physics ia topic as soon as possible can you guys pls help me
  11. Hey guys and girls Just wanted to get some opinions on what everyone thinks are the hardest topics within the SL Core in Physics Topics are 1 - Measurement and Uncertainties 2 - Mechanics 3 - Thermal physics 4 -Waves 5 - Electricity and Magnetism 6 - Circular Motion and Gravitation 7 - Atomic, Nuclear and Particle Physics 8 - Energy Production Cheers
  12. I want to study astrophysics at university and my IB option choice deadline is in a few days. I am debating between taking SL Chemistry or Theater Arts. Currently I am planning on taking: HL Physics, Maths, English Lit SL Economics, Spanish B, Chem/Theater The problem is that I love both chemistry and theater equally and consider myself to be pretty decent at both. I am not willing to drop any of the two because I thoroughly enjoy both so now I don't know what to do as I don't require either of them for studying physics or even astrophysics at university level. (I am taking HL English because I might consider studying Law btw) Can anyone help me out? Thanks!
  13. Hello! I am planning to major in economics or business in university, and am thinking of studying in the US or Canada. Should I take HL Physics with HL Math application and HL Visual Art to show my willingness to take the most challenging course out of what I can, or take HL Economics instead of HL Physics to relieve my stress with HL Physics and HL Math, and aim for higher grade overall? Thank you.
  14. Hello IB Students, I have been working on a new IB Physics website (www.paperplainz.com) for the past months and it is now open. The website has over 800 past exam question video solutions (all Paper 1 and Paper 2 SL and HL questions from May 2016 until November 2018), practice exams and a growing questionbank (for now Paper 1 only, Paper 2 questions are coming soon!). Many of these resources are free of charge. Click here to check out the website: www.paperplainz.com If you would like to watch some of the videos on Youtube, just follow the link below: https://www.youtube.com/channel/UCGZ55FHT1TEHVh1grhOBReA/playlists Please let me know if you have any questions, I will be happy to answer them. Have a nice day, Peter Kovacs
  15. Hello Ive just started the IBDP program, and I am currently taking physics SL for my experimental science subject. Although I did okay with topic one (was sometimes confused in class though was able to understand with revision) . I am not good at maths, and am aspiring to study psychology in the future. SHOULD I change to chemistry SL instead of physics SL, considering how apparently chemistry has somewhat easier maths than physics? What are the differences among these subjects? If I’m bad at math, should I not take physics SL?
  16. " There are people who don't believe in the existence of dark matter, but there are numerous theories that could prove dark matter’s existence, such as gravitational lensing, dark matter halos, and cosmic microwave background. " I was wondering if this is a good extended essay thesis because my teacher said that this thesis is not arguable. I was wondering if she is right and if she is, how can I fix it. Many thanks in advance!
  17. Hello, My name is Taha, I'm 17 years old, and currently in 12th grade. I'm looking for someone to help me with my Extended Essay. I've decided to focus my essay on quantum locking: including superconductors (YBCO), the Meissner Effect. I have access to the materials needed to experiment with this topic (materials from quantumlevitation.com). Some ideas I had in mind was to discuss the Meissner Effect in superconductors when cooled down to a critical temperature with liquid nitrogen. I was inspired to this topic when watching a talk on TED.com about quantum locking and quantum levitation (video here: https://www.youtube.com/watch?v=PXHczjOg06w) This aim of this project is to study the properties of quantum levitation and locking and provide ways to improve the efficiency and speed of current transportation systems (high-speed trains, levitating cars, and hoverboards), and the idea of creating bearings with negligible friction. I will need help in formulating a research question that would be appropriate to the Extended Essay guidelines and know what is the best structure for my essay. Let me know if you can help me. Thanks,
  18. Hello, all who have clicked on this post I would like to simply ask you one question about my ee, specifically whether you guys think its tooo simple or not. So, for my extended essay, I've chosen to do physics (o god), and the sub-topic of astrophysics (double o god), I have come up with an idea for my ee, which is Investigating how the Luminosity, Mass and Surface Temperature of Main Sequence stars are interconnected. Is this too simple for an ee, or do you guys believe it has the potential to be a good if not decent ee? Oh, and the essay will be a database EE, (creating an experiment, and fitting data to come with some conclusion) (I won't go over the specifics such as research question and experiment that I will do since I fear plagiarism.) As a side note I do want to study astrophysics in university, I know that writing an astrophysics ee in ib is suicidal, but I wanna do it because i believe its a good challenge. So taking all that into consideration, what do you all think? Thank you, - a stranger of the internet
  19. Hello, thanks in advance for your answer. My friend has a very high probability of repeating one year. Under what conditions does a person stay in the second year in ib (11 grade) ? If in the first term (grade 11) the student receives 1,2,2,7,5,6. And in the third term (grade 11 ) he has 7,6,7,3,2,4 + A (TOK) will my friend have repeat a grade ? (Retention one year ) (CAS has done ) My friend is very nervous about this, but I don't know anything about falling conditions in ib. Thank you 😊
  20. Hello, forums. I've just joined here hoping for assistance in picking a more refined EE question. I am in year II of the diploma programme, and am pressed for time regarding my EE. My original Extended Essay was on aerodynamics, but due to several problems it didn't work out. As a result, I've had to make a decision to change my EE topic, and physics is what I'm sticking with. Currently, my chosen topic is optics - lenses, and while I'd prefer to do it on aperture, diffraction, or distortion, I'm open to doing other things in optics as well. By this point things have gotten to a head and I have to decide really quickly both a question and my experiment. I'm open to anyone willing to help. I have a basic idea to relate it to photography through camera lenses and the depth of fieild created for different lenses and aperture, or through distortion (aberration) and cook up some similarities with how our eye works. I am aware that our eye has a very small depth of field, so I might be able to figure out the depth of field for 50mm lenses with a pupil-sized aperture. However, forming a question and focusing it is a tough one. I do want topics that are relevant to photagraphy, but most anything in light will do. Any suggestions or tips? Thanks in advance.
  21. Hi~ I am writing my physics IA, and have come across a problem: I have data for six trials, and when I am calculating the uncertainty of its average values, which of the two methods should I use?: 1. (max-min)/2 method 2. standard deviation Should I use the first method or the second method for my average uncertainty for six trials? Which one is the method that is generally approved by IB and is capable of getting a level 7 in the internal assessment? Thank you!!
  22. Title. Science doesn't exactly relate to my intended major (economics) so I'm really just choosing whichever is the easiest one at SL. Also, I'm not considering chemistry to be an option cause I'm learning it right now and absolutely hate it.
  23. Guest


    I have currently chosen to investigate tidal waves for my maths IA. However, I am unsure as to what other explorations I can do under this. (And whether or not this is too simple...) Is modelling and predicting future tidal waves appropriate? I have secondary sources that'll give me data of tides at different points in times at a beach, so I will be able to graph them. I will also use trig and algebra to find the ideal time to visit the beach with my "ideal" tidal height of 1.5 metres I am uncertain as to what other maths/exploration I can apply to this Any suggestions would be greatly appreciated!
  24. Not doing really great with the paper 2, is it still possible to pass if you pass the paper 1 and paper 3?
  25. Hello everyone, I am currently doing 4 HL's but I need to drop one as soon as possible. Right now I am taking Math, Physics, Chem and Econ HL. I want to be an astrophysicist. I know that I need to keep Physics HL, I do not know about Math because even though I am strong at math, the teachers say that it will be very challenging for me and I will not be able to get the score I want, but if I drop to Math SL she said that the course would be kinda too easy for me not letting me develop my skills. I have to choose between Chem and Econ which one to drop. If I were to have Physics, math, and chem HL the teachers say I would pick the "death combo", and I can see why. But they complement the best If I were to pick Physics, econ, and chem HL, would I need more maths but should I be okay with just Math SL for astrophysics? or should it be better if I keep Math HL? The other option would be to have Physics, math, and econ HL, in which math would be the most challenging one for me. I have tried the 4 for a semester, and I am allowed to keep it like that for another semester before yr12 starts, but me and my math teacher would like if I decide as soon as possible, if possible before the second semester of my first year starts. Thank you all for your help! All thoughts are welcomed!
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