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Found 569 results

  1. 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...
  2. 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?
  3. 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
  4. 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
  5. 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?
  6. 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.
  7. 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?
  8. Hey guys, I am currently working on my physics EE, but am having trouble focussing it. I would like to investigate the effect that changing a certain factor has on the rotations per minute of a wind turbine. However, I have no idea what factor I should change, that would make it worthy for an extended essay. Some ideas I have for the factor are changing the angle of attack, length of blade or shape of blade. Any help would be appreciated. Thanks in advance,
  9. 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?
  10. What's the difference between the Normal Force and Newton's Third Law of Motion? Because they sound pretty similar.
  11. I’m a matric student going into IB and I’m taking economics, business management, physics and math and I have no strong base on any of the subjects. But I am willing to do watever it takes to get above 35 in IB
  12. Hey guys! How are you? I would like your suggestion on the option that I should choose for my paper 3 Physics HL. I wanted to take relativity, but my teacher is strongly recommending imaging. Please put your suggestions below. The options are: A: Relativity B: Engineering Physics C: Imaging Astrophysics Thank You. All the best for your exams. 😄
  13. I want to do my IA on cantilevers using a wooden ruler (I know, overdone) but I'm having trouble formulating an actual question. I already know what variables I want to change, would my research topic just be something like, "the factors that effect the period of a cantilever" or something like that? Also, is there a way for me to make this appropriate for HL? Or if I want to do HL, should I do my IA on another topic entirely?
  14. I've had a really hard time choosing a topic. I'm interested in a lot of different subjects, and one doesn't really stick out. We had a deadline to choose a topic, but we can change it. Right now I'm planning on doing mine in psychology, researching how second language acquisition affects child development, specifically within education and brain/language development. The problem is, my school does not offer a psychology course, and I've heard that if you haven't taken the class, you shouldn't write an essay in that area. I'm also interested in Environmental Systems and Societies, but my school also doesn't offer that class. I have taken the AP environmental science class. However, I couldn't come up with a good topic to explore in that area. My favorite DP class right now is physics, and I would be ok with doing an essay in that subject, but haven't found an idea I'm really interested in. Maybe something to do with soccer (I play)? I really need to come up with a solid plan soon. My rough draft is due in September, but I have the EE cafe in May. I would really appreciate any ideas or advice you guys have!! Thanks!!😊
  15. Hi everyone, I am currently planning for my IA and the RQ is about the effect depth of water on the road and weight of a car have on dynamic friction. Is this topic worth investigating (I of course don't know the answer to my RQ)? Or should I find a better real life situation to connect it to? Thanks a lot!
  16. This lab has been submitted and graded by IBO. It received a perfect score in all categories. Research Question: How does changing the angle of incidence of light affect the power output of a solar panel? Includes calculations, graphs, steps to linearize data, and a conclusion to an inconclusive lab. Good example for when you don't get your predicted results from the lab.
  17. so tomorrow I have test in physics, and I suck at physics in general. Do you maybe have easy ways how to remember formulas etc. of "energy and energy production"? if you do, can you maybe give in what you have?
  18. Hi...I'm in a bit of a dilemma. I know I'm going to be studying sciences in university, but I'm not exactly sure what type of science I'm getting into. It's a bit stressful because I have my own preferences, while my parents' disagreement with these preferences make me scared to the bone. I know I want to take Chemistry at Higher Level, but my problem is between biology and physics (+ computer science, but I'd rather NOT get into that.) at HL. You see, I'm studying MYP right now and so far I really enjoy Biology and find it very interesting. As discussed with my careers counsellor, I could take my bachelor in Bio OR Chem and then take my Masters in Biochemistry, which I thought was a great idea because it is two subjects I enjoy (to a certain extent, but I'd also rather NOT get into that). My parents don't think that's a great idea though. My dad says I'm limiting myself wayyyyyyyyy too much (like a mouse hole kind of too much) if I delve straight into my masters after my bachelor. Sure, I get that. Maybe I'll work with my bachelor in Chem for a while. But that's also very limiting, apparently, and my only option is to take Chemistry and Physics/Computer science to get a bachelor in engineering. Except I dread Physics/ I'm not-so-great at it. And I've heard it's a death wish to take it at HL if I'm not ready to put in the effort or enjoy it to the fullest. News Flash: I'm not! (As for computer science, well, I'm not very sure because I've never studied it, but I'd assume I wouldn't be fascinated by the unduly amount of numbers and problem solving that seems to give high-paying jobs all around). The thing is, I'm not going to get into medicine. Not a doctor or radiologist or pharmacist. And Biology is practically a dead end to my parents, very shameful, if I don't want to be a doctor (which, I repeat, I DO NOT). I'm trying to cooperate with my parents by going into sciences (trust me, it's not my first choice), but I'd like to at least do something I like (to some certain extent). However, it seems like unless I get into computer science or Physics (engineering, really, is assumed to be the only job that'll get you some bucks here), I won't be successful. I've been told it's best to cry now and not later, but I'm not sure if that's necessarily true. I think if I take Physics and end up being an engineer I'll be crying 'til the rest of my days. But, at the same time, why should I trust myself? I'm a kid and puberty and hormones and total ignorance makes me rethink my choices in taking Chemistry and Biology at HL. Should I just take Physics and Chemistry and cry in a Ferrari? Sorry for the rambling. I appreciate any and all responses.
  19. Hey so for my extended essay in physics i came up with this topic: "The optimum conditions required to create the most efficient waterwheel". I was wondering if this was too vague or if it has too many things consider. Please tell me what you think
  20. I have the exams in 1 month and did not start studying yet. I am extremely scared about the exams and dont believe i have sufficient time to study for them properly. I do math hl and physics hl and still did not revise anything. I believe i will fail the exams or get really low grades. I may be dramatic but i dont know what to do. Do i have time? How can i do this?
  21. Hey guys! I am doing my extended essay in physics, and I want to do it on how the speed of a soccer ball affect its projectile motion for this experiment I will have to keep a constant speed while I kick the soccer ball. How do I keep a constant speed? Also, does doing experiments on simulation affect our grades? It would be great if you could help me out. Thanks in advance. P.S. please reply ASAP!
  22. Hello guys, I have taken Extended Essay in Physics which is my HL subject, I was thinking of doing it on the Projectile motion in soccer. Is it a good topic? What experiment can I do in it?
  23. please someone answer me so i can decide whether or not i should spend 30 dollars investing in this website, is it worth it? is it a good website? or am i being scammed?
  24. Hello everyone, I am planning on taking the IB Physics Exam next year, the only trouble is that there is only AP physics in my school. I have already talked with my IB coordinator and we have figured out how the Internal Assessment will be graded next school year. I have some sites and channels that might be able to teach me most of the content, yet I doubt that I will be able to find all I need. Can any of you recommend me what should I do, and sites and/or videos to learn and hopefully pass the exams next year?
  25. How do I make sure I get into Cambridge? Even if I don't get the required grades?
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