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Found 585 results

  1. Guys, I am planning to do my EE in Radioactivity and Nuclear physics. Are there any experiments that could be done relating to this? And could you suggest where I could find some secondary data of experiments done by authentic labs or organizations as nuclear experiments are not very possible to conduct as a year 1 student. Any other recommendations or tips are also appreciated Thanks! Cheers! All the Best!
  2. ChristinaD20038

    Extended Essay in Physics ASAP

    HELP! I am doing my extended essay in physics and I am worried because I just got to know that I need two independent variables for my extended essay. Is that right? Or am I fine with only one independent variable? HELP PLEASE ASAP!
  3. Hello, I am an 11th grader taking IB HL Physics 1. I plan on taking AP and IB tests. I need to sign up for AP tests very soon, and I want to have the AP tests done before applying to college next year. If I take IB HL 1 physics, will that prepare me for the AP Physics C mech exam? or just the AP Alg 2 exam? or should I be doing at least a little bit of independent study?
  4. hey_im_dying_hbu

    My Extended essay

    Whatsup people, I have been thinking about my extended essay question and after a few hours of research this is what I have To what extent does the use and manufacturing of electrical cars benefit the environment in the European Union? I think its too broad and another conflict I have experienced is that I don't do any of the 2 topics this question focuses on. (Geo and physics). I do feel like there is plenty on the internet I can use. If you have a way to turn this into an economics question,(which I do study) or any suggestions please let me know. It would be highly appreciated. I have to submit my EE subject and supervisor choices tomorrow so any answers are welcome. Thanks.
  5. When a filament bulb is first switched on, its metal filament is cold and so has a relatively low resistance. This leads to a large surge current until the filament heats sufficiently to glow white hot with a steady electrical current. This essay investigates the research question: “How does the final current affect the surge current time in a filament bulb?” The surge current time is the time interval between switching the bulb on and when the final steady current is first reached.
  6. Hi, I need help with my Physics IA topic. I was deciding on conducting my investigation on Hooke's law and springs. I was thinking of investigating the effect of the length of the spring on the spring constant. Another idea I had was investigating that if a spring with a spring constant of k was cut into four equal springs, would the spring constant of each spring be 4k. I was told by my Physics teacher that this would make a good IA if I was able to explain it correctly, however, I am still unsure. Would this be a good physics IA topic, is there anyway I could expand on the experiment, or should I look for a better investigation? Anything would help Thank You in Advance!!!
  7. I don't know if I can do research based on just the mathematical analysis and interpretations of a physics concept for my EE, rather than conducting any sort of experiment or data processing. My teacher says the IB won't expect a theoretical/pure mathematical paper. Is that true?
  8. I need to change my RQ a little bit probably... I know it is not good to make an EE of science without doing experiments yourself, but I won't change my mind. My RQ is Why are the physicochemical effects of celestial bodies important to generation of life? I will narrow the life, but I don't know if I should focus on a certain physical or chemical effect, since the information might not be enough. Celestial bodies I think maybe using one astro, or using more and comparing them.(I think Jovial and/or Saturnine systems). Would appreciate some help...
  9. I was planning to do relationship between sucrose level and refraction of a solution but the data I found was a lab report so does it mean its already analyzed? Any recommendations and resources are welcome
  10. helenas

    IBHL Physics IA

    I know there are tons of posts on here like this but can anyone help me like expand my IA idea? I'm in HL physics and maannnn am I bad at it but I'm pretty good at music (violin) so I had planned to do some kind of exploration on standing waves on string/ in tubes using my violin and my large set of boomwhackers, but I'm not sure what exactly I could explore to get 10 reasonable pages out of that. I was going to explore like how the distance between adjacent notes on the fingerboard gets smaller the higher you go up the fingerboard, but that's probably not 10 pages worth of info, so can you think of like any ways I could talk about standing waves, something about waves on violin strings, waves through open-ended or open-closed tubes (the boomwhackers) that could all somehow fit under one research question and also contain enough info to write about 10 pages (including graphs and tables and diagrams and such) about?
  11. Laura Serrano Rodriguez

    Which HL to drop to SL?

    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!
  12. Jayendra

    Physics HL OPTIONS

    Hi, My school is offering Astrophysics, but I am really considering Imaging. Is imaging suggested or how easy is it?
  13. "To what extent was the cold war responsible for the separation between North Korea and South Korea?" is this too broad? please someone help how i should phrase my research question. I really do have interest and a lot of knowledge in this area (the Korean War) & (The Cold War)
  14. BenMANZI

    Momentum and Impulse

    The file contains a PowerPoint presentation on Momentum and Impulse (notes) with sample questions for IB Physics topic 1.
  15. Mitch here - it's been a while since I last posted, but in the past few years I've been teaching, becoming a daddy to two little girls, and I've been enjoying life as a Canadian in Denmark. You might like to know that I just made all of the theory videos from my online revision course available to you - for free. Hope they can be of help to you - I certainly had fun recording them. https://studynova.com/lecture/physics/ I went through every past exam question (starting with May 2016 of course) and kept track of what subtopics are showing up most often on Paper 1, Paper 2 and 3. For each of those very important topics, I made a video. Voila. Every topic from Physics SL (Topics 1 - 8) Every AHL topic from Physics HL (Topics 9 - 12) Two of the options (Relativity and Astrophysics) Nearly every video has an IB question at the end (or a part of one) - figured it's good to give you some practice Memes. Lots and lots of memes. I went a bit crazy with them and I haven't stopped. I'm not even sorry :) I think in total, there are more than 100 videos! Yikes. Or...fun ?
  16. Hey guys, I'm new here. Could you help me out with the solutions to "Test yourself" in the Tsokos book(physics). I know there are answers in the back but i seek detailed answers. Thanks! Shrish.V IB DP Class of 2018
  17. keeley45733

    Is it always this bad?

    SOoooo I being open here is the IB always this hard. I'm a year 1 and I'm 2 months into school. So far I am doing terrible in all of my classes except Mandarin SL. Can anyone else relate to the first few months being rough annnnnnndddd how do I get out of this bad grade slump because I've NEVER gotten the kind of grades I'm getting right now, like ever, in my life. It gets better right? Because if yes, how did ya'll do it??
  18. Jayendra

    Physics HL text book

    Hi, I am learning physics HL. And my school has provided me with Oxford 2014 Physics Course Companion by David Homer and Michael Bowen-Jones, but I feel it misses out some topics or content as per syllabus. So is there any better book? Please suggest...
  19. AwMan

    Increasing Grade

    I did not get my IB Diploma as I got a 3 in physics but a 4 in my two other HLs. I missed a 4 in physics by 1 mark/percent. I am on the grade boundary. The upper boundary is a 36, I got 36. What is the chance and probability that my grade will increase?
  20. keeley45733

    Bio, Chem or Physics

    Going into jr year and class choices are due in a few weeks, please respond and thank you in advance to the ppl that do What sciences should I take and at what level if I wanna go into engineering or medical. Like what would be the best base for college? Also at what level should I take math? ^ 2 HL spots and 1 SL
  21. rams

    How to study HL physics

    Hey everyone, this is a very generic question but how should you study for physics? My teacher really rushes through topics and I’m finding it hard to understand how to apply the theory. So far we’ve done topics 1-4 and I’ve found mechanics the hardest because we did not spend enough time on it, we also barely learnt the theory and went straight into past paper questions. Waves and thermal physics on the other hand I found quite straight forward. Is the best approach to first study the theory and take notes and then do questions? Or is there better methods Thanks
  22. I'm currently having my summer break, but still couldn't find a good Physics EE topic to discuss. I've had a few but not consistent meetings with my supervisor, but she said that my previous topics that I've made are too general. My previous EE topic that I've came up with was about the relationship between a change in rate of displacement with the Doppler Effect. I've done my EE draft and submitted, but was not really satisfied with my supervisor's comment (too general and not EE worth [though good for IA]). Then I've decided to leave my previous draft and trying to come up with another one. Now I'm currently having ideas with the application of electromagnetic induction (Faraday's Law) on electric guitars (and other music-related), but I just can't seem to find a suitable research question/purpose behind the topic. Can anyone help?
  23. 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.
  24. Allemande135

    End-of-year Physics exam

    I have my Physics exam tomorrow and I have a few questions in various chapters. Measurements and uncertainties: If in a calculation, I find the answer to be 500, but the numbers that I used all have 3 significant figures, would I be able to give the answer as 500? Does that have 3 significant figures? Or would the answer be 5 x 102 ? When finding the absolute uncertainty with the percentage or maximum/minimum method, what are some rules that apply here? In my notes I wrote down that if there is addition or subtraction in the original equation, then I must add the absolute uncertainties. But when there is multiplication, division or indices, then I must add the percentage uncertainties. Is this correct? Kinematics: I'm really confused about a question in a Paper 1. "A constant horizontal force FA is applied to a block m1. Block m1 is in contact with a separate block m2. The blocks remain in contact as they accelerate along a horizontal frictionless surface. m1 has a greater mass than m2. Air resistance is negligible. Which statement is correct?" So I picked D which was "The force that m1 exerts on m2 is equal to F", but I was wrong and the actual answer was B "The force that m1 exerts on m2 is less than F". Why is that? Thermal physics: I would appreciate any common examples/questions involving the method of mixtures, since I haven't succeeded in solving one yet. By method of mixtures, I mean mcΔθ = mLf + mcΔθ. Would this equation work in every situation or should I be careful? Circular motion and gravitation: For g = F/m, if you have a satellite orbiting a planet, is 'm' the mass of the satellite or the planet? For tanθ = v2/Rg, what does 'R' represent? Is it the normal force or the molar gas constant? Also, when you write ' -g', does that equal -9.81 ms-2 or +9.81 ms-2 ? General: Does uppercase P stand for power and lowercase p stand for pressure? Also, how should I approach ratio questions?? I sometimes get them right but sometimes not. What should I start with?
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