Physics
For Physics Discussions
1,008 topics in this forum
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I've been looking around at stuff to try and figure out what a good physics IA topic might be. I've been considering things along the lines of semi-conductors and solid-state physics (basically things related to computer hardware), but I don't know enough about these topics to come up with a solid research question. For that matter, are topics like these commensurate with the level of HL physics? Could you guys give me any ideas for more narrow areas of study that I could look into relating to semi-conductors, solid-state physics, or other such topics that I could try to make a research question and research method for? Thanks for any suggestions!
Last reply by Cam.m.k.7, -
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Does anyone have May 2015 papers for Physics? I will be willing to trade other resources like textbooks, worksheets, question banks etc.
Last reply by purupahuja, -
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Heyy. So I have been asked to come up with a Physics IA topic and I am really struggling to come up with one, especially as new syllabus require good amount of personal engagement(like in maths). So doing mainstream experiments is hard as it lacks personal engagement. I have though of: Mpemba Effect( though I feel its little bit kiddish) How does extension of elastic gets affected by height of release ( I have personal engagement for this) I would really appreciate some ideas (even if they are mainstream, I can bull**** PE) Thank You!
Last reply by Bingyao Hu, -
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Hi there. Many of you know me as that one teacher who likes to make IB math and physics videos on youtube. I wanted to let you know that I have a set of notes that I made for my own students that should be relevant to you, if you have your IB Physics SL or HL exams this November (in just a few weeks!) The notes cover the OLD syllabus (if you have exams this coming May 2016, you can of course benefit, but it's covering things in a different order, there's no particle physics in the core, they have 2 options, etc etc). I hope you can find this helpful! The notes cover Physics SL and HL, (if you're SL, stop at topic 8), and they also have a few of the options as well. …
Last reply by Sandy, -
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So, we are doing an experiment in two days for my Internal Assessment. I have chosen to investigate the correlation between the change of starting temperature of liquid and the slope value (i.e. K) in Newton's cooling law. However, I am afraid that this topic could be considered as more of a math investigation instead of physics. It would be of great help if you could give me some advice on how to make it more physics suitable or if it is already a good physics topic. I have talked to my teacher, but I am not sure if she understands what I meant. Thank you!
Last reply by Sandy, -
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I am doing the ib diploma next year and I am trying to decide on my 6th class. I'm taking chemistry hl and am thinking of taking physics sl. I am worried about physics sl because I haven't taken any previous physics courses. So I'm wondering how hard it is to score well with no previous experience?
Last reply by ibprincess, -
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Hey guy! It's my first year of IB and I need a topic for my physics extended essay. I though of focusing on a solar boat and discussing its efficiency and speed. Is it a good Idea. Of not could you give more suggestions Thanks
Last reply by Hassan76, -
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Hi, I want to do my extended essay in physics and so far I decided that I want to research flight properties in a water rocket. I have 2 ideas for a research question so far and they are: 1. How is pressure a determinant of time of flight in a water rocket. 2. How is the range(or time of flight) dependent on the size of the nozzle of a water rocket. I asked my teacher and he said it sounds doable. What do you think? Any advice? Thanks!
Last reply by Hassan76, -
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Hi all, I'm having some difficulties over the maximum/minimum trend lines for my graph. Here is the original one with the line of best fit added: And this is after I added the maximum/minimum lines: Now the problem comes in the minimum line, because it goes above the original trend line. The only way I can solve this is if I discount the upper and lowermost point, but they're not really anomalous as the final calculations graph looks like this: If it helps, this IA is about circular motion: the first 2 charts are for the relationship between radius(y) and period(x), and the last chart shows the relationship between centripetal force(y) and velocity(x). Thank…
Last reply by flyingturducken, -
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Hi guys, I am physics sl student and everybody knows about the internal assessment, and i have choose a good idea but i have no idea how it should look like and have no tips to follow about writing personal engagement, method, ext. so please if any one can help me !
Last reply by Vioh, -
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Does anyone know how to calculate uncertainty involving sine functions. For example if I divide: sin(50.0 +/- 0.5) / sin(30.0 +/- 0.5), what would be the uncertainty?
Last reply by Vioh, -
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Hi guys. I have to decide which option to choose for my HL physics. Because of some school and teacher problems, I can only choose between "relativity" and "astrophysics". To be honest, I prefer the later one. How difficult are these two options? Which one is relatively easier? Or which one is more interesting? Thanks.
Last reply by ckj1026, -
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For my Physics IA I chose an experiment which turned out to be a horrible idea and my teacher didn't stop me. The first draft is due tomorrow and I just realized the data that I have is completely wrong. What do I do? Would I lose a lot of marks?
Last reply by thecsstudent, -
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So we had this question in class (Attached), but no one in our class knows how to do it as we cannot find the mark scheme. It would be great if anyone could tell us the answer with steps Thanks
Last reply by kevG, -
Physics IA
by Kunal- 1 reply
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I need help finding a physics IA topic . I am a Physics HL student. All help is appreciated
Last reply by King112, -
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do i calculate the acceleration due to gravity by doing 4pi^2/gradient? please help shm lab.xlsx
Last reply by abod, -
Question on Topic 3: Thermal Physics
by Guest 4lantheman- 1 reply
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Hello All, I have two questions: 1. I am finding difficulty understanding the explanation for the 'gain' of potential energy when a object undergoes phase change. i.e. In terms of molecules and energy, how can we explain the difference between P.E. in solids, liquids and gases This means: U.E. (l) > U.E. (s) Right? Please let me know if there is an alternative explanation, relating to work done -> force * distance // attraction force between molecules // distance between molecules. 2. What happens on a microscopic level, when thermal energy is transferred to an object? An explanation in terms of molecules, relating to the heating curve would be gre…
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Hello! I know it is not the right place for this, but I really really need information about the specific heat capacity of sunflower oil at 25 c. I cannot find it anywhere so if anyone knows this information please help me!
Last reply by Slovakov, -
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Hey everyone! I'm writing an EE in Physics, and I stumbled upon a major problem that's holding me back from finishing it. So here: I have a research question and a hypothesis. Added to this I have a mathematical equation that basically gives me a linear fit. The problem is that the hypothesis is mathematical but qualitative. the mathematical equation I have is derived from that hypothesis through really complicated methods way beyond what any IB physics HL or Math HL student would know. This means I will not derive the equation as I virtually cannot (if I do my EE will go way beyond the word limit and taking to account that I do not understand the derivations, I will pr…
Last reply by bguloglu, -
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Dears, I have interesting model here https://www.youtube.com/watch?v=GQUPaHE0vCg I need your opinions to improve it so that it will never stop, and run permanently Thanks
Last reply by thinhnghiem, -
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I'm doing a lab, and my data is very messed up. Unfortunately, I don't think I'm allowed to share the actual graphs on here. So I'll just ask some questions: 1. If I'm looking at only two data points, can I say they have a direct relationship? Or would it be safer to say 'positive correlation'? 2. As for a linear graph with a negative gradient - not an inversely proportional relationship, but is it still an inverse relationship? 3. If the data points have significantly large error bars, to the point not being to plot a maximum line, is it fine to just refer to the minimum value? (There is a justified reason why the error bars are large). And yes, I've went to see my t…
Last reply by CkyBlue, -
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So I keep getting told to keep my IA simple, because it's not graded for being groundbreaking or anything. I'm skeptical about this though and I do want a good grade. I'm investigating the viscosity of different liquids and under different conditions. So too simple?:/
Last reply by kw0573, -
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I am trying to come up with an idea for my Physics IA. Any ideas? I enjoy music, cars, and boating and I am unsure of what to do for my investigation.
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does anyone know how to find the coefficient of kinetic friction using the applied force of an inclined plane?
Last reply by kw0573, -
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Can anyone please uplaod some physics SL questionbank questions and ms? Thanks
Last reply by Gaby, -
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For our IA, our teacher has decided that the whole class will be doing it on the same topic, and even the same research question. Is this acceptable by the IB? Or will this get us into trouble? I really need help!!!
Last reply by Slovakov, -
Cannot find resources for IA
by Guest- 1 reply
- 611 views
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Last reply by Slovakov, -
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Hi guys, so I'm roughly three months in the IBDP program and I have issues with my Physics teacher. She has never been trained for teaching IB before, though she claimed to have taught high school students in the past. My school is still new and inexperienced. We haven't gotten our Physics books to this date. My teacher said she can't start teaching without the book but even if we did I don't think she'd be able to teach properly. You see, she's only revised level 8 syllabus to us - scientific notation, orders of magnitude, vector & scalar quantities, estimation, cancellation of labels. The most BASIC things. I'm freaking out because supposedly our first topic should …
Last reply by Djsporting, -
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So I'm pretty sure we all know the effects of lack of sleep on grade perfomance. I bring this up because my brother is really struggling with physics and he said the he is going to study even harder and stay up till 12 and we both have to wake up around 5. I worry he might not get enough sleep and that's going to make him do even worse. Whats a way he can improve without making such an extreme decision?
Last reply by Hassan76, -
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I'm doing a physics lab writeup and I'm wondering, if the error bars on a graph are too small to see/draw, what do you do?
Last reply by kw0573, -
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Right now I am working on my Physics IA. I know what I am doing and I currently have most of my data. What I want to know is if my experiment is HL material. My investigation is finding the relationship between the width of a guitar string and the note it plays. All it involves is a few measurements, crunching the numbers into an equation, and making a graph out of it. It turns out to be an exponential relation. To me, this kinda just sounds too simple for an HL IA. Is there anyway I can involve HL material? More importantly, do you believe this is acceptable? Thanks!
Last reply by Freeze-Frame, -
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Right now I am working on my Physics IA. I know what I am doing and I currently have most of my data. What I want to know is if my experiment is HL material. My investigation is finding the relationship between the width of a guitar string and the note it plays. All it involves is a few measurements, crunching the numbers into an equation, and making a graph out of it. It turns out to be an exponential relation. To me, this kinda just sounds too simple for an HL IA. Is there anyway I can involve HL material? More importantly, do you believe this is acceptable? Thanks!
Last reply by Freeze-Frame, -
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Hey peeps, So how does one go about doing this seemingly mind-boggling question as presented below? The answer should be: C) 16 ms-1. After converting the period of 5 milliseconds to a frequency of 200Hz and getting a wavelength value of 2m, chucking it into the equation 'v= λf' gives me the 400ms-1 value :/ The displacement being in cm implies that maybe a conversion is needed? Not a clue with this one.
Last reply by Hassan76, -
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So I was practicing for an upcoming test I have and I came across this problem. I used the loop and junction law and got an answer, but I don't know if it's right I got 0.3 Amps across i1, so 1.5 volts across the 5 ohm resistor. But I don't think that is right. I don't have access to the answers so... you guys are all that I have Help me out please Thanks
Last reply by kevG, -
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Hello all, I'm starting my second year of DP next year, and I want a textbook for SL Physics to work with. We don't use textbooks in my class, but last year I had a hard time without something physical to refer to when pre-writing notes. I need something to help me prepare for the exam itself. I was going to go with the Oxford book here but I don't think it's for the new curriculum (though I could be wrong). I've also read lots of mixed reviews about it. I don't want to drop upwards of $50 on a textbook that won't help me. (Not to mention I need one for chemistry too, that post is here.) My teacher has maybe ten or so of the Oxford books but we rarely use them, so I can…
Last reply by El :3, -
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Yooooooooooo! I've once again found another question about waves that I'm unable to answer. This one is from November 2009 HL paper 1. I know how to do number 14, that's a pretty basic one; however, I'm stuck on number 15. The answer is supposed to be B (0.8 cm), does anyone understand how to get to that answer? If so, could you explain? Thank you in advance CHEERS!
Last reply by HiggsHunter, -
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Yooooo! So I'm super confused, y'all get this question? The answer is supposed to be B. It's from May 2003 both SL and HL paper 1s question 16. If anyone understands, could you explain? Thanks in advance! Cheers!
Last reply by maturk, -
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Lately, I have been looking at a lot of discussions and samples of the Physics individual investigation, but none have been able to clear my doubt of what a Physics IA actually demands! Does it want us to choose a very complicated issue? For instance, how is this IA topic? Conduction of electricity through pencil lines on paper. Another thing is that I have been looking for the format of a level 7 IA. Could someone please help me with it! Thanks!
Last reply by King112, -
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Last reply by Jpcrema27, -
Uncertain about this uncertainty problem!?
by Guest SNJERIN- 1 reply
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Which method of those two is appropriate in determining the uncertainty of trigonometric ratios
Last reply by Vioh, -
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is there any easy way of calculating uncertainties with long and tedious formulas? (ex: cylinder V= 1/4 x pi x d2 x h) I've just started IB and uncertainties are confusing me as its only been 3 days and I feel very stressed because i think everyone in my classes finds them really simple
Last reply by Vioh, -
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Hi, our physics teacher has recently asked us to present our IA topics and i have this idea that i seem to struggle coming up with a good research question. its about momentum, basically i want to investigate the relationship between time and force for different collisions and how this impacts on the impulse. the real life situation i want to use is to verify or rather look into how effective statistics presented by forensics people in accidents is. may you kindly help me construct a well focused research question. thanking you in advance
Last reply by kevG, -
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The answer key said the answer is B, but I don't know why....
Last reply by Vioh, -
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I am looking for ideas for my physics hl ia. I want to do something with projectile motion. Forces are okay as well. But I am having trouble finding something that is complicated enough for hl level. I am a field player (shotput, discus, javelin) so that could be something I could do it in.
Last reply by King112, -
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Hello, I have to work on my Physics Individual Investigation, and I chose to measure the specific heat capacity of sugar solutions with respect to the density of sugar solution. However, my data look a bit bad and they're definitely not in accordance to the scientific data I've found in studies. Can however a solid presentation of the method, evaluation of results, good introduction and conclusion and decent presentation of data and calculations make up for the messy results? Thanks
Last reply by George Ampatzis, -
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Hello First of all, my physics teacher isn't so great and therefore I lack understanding of some equations within the curriculum. Can you please explanation what each symbols stand for in the equations below and explain them for me? Thank you so much
Last reply by viclzhu, -
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I found this youtube video that teaches me exactly how to structure and write the IA. it really saved my time doing research online. It is even more helpful than my tutor whom I hired for 70 USD per hour!! You can watch here https://www.youtube.com/watch?v=7_8uUIRPK_g
Last reply by johnsmith98, -
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My School made me change my EE Topic about 9 times last year, cause they thought most of them were just plain bad and unfeasible. But in the end I did manage to get a topic which I could do on ITGS and I've just finished my essay a few days ago but still, there seems to be some guilt residing in me with this one topic on physics which I really found interesting and wanted to do... I wanted to find the correlation between the arc length sector of a pebble and the number of skips it did over a body of water; to find the specific degree which held the most number of skips. The method I was going to approach this topic with was by using a simulation for gathering all the da…
Last reply by kw0573, -
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LIke Mitch Campbell (forum below), I've made IB Physics videos. About 90% percent of the SL and HL core syllabus (new syllabus 2016) is complete. I have also completed the SL portion of the Engineering physics option (Rotational Dynamics and Thermodynamics). The syllabus very closely and I include many sample IB problems. Many students have emailed and reported dramatic improvements in their grades after watching the videos. Chris Doner (C. Doner's IB Physics) https://www.youtube.com/user/exportationality
Last reply by Chris Doner, -
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Hey Guys here are a few IB Physics resources! I will be posting more as well For now enjoy the worksheets! Contains: OPTION A Questions with answers OptionA.docx OptionA_Answers.docx
Last reply by King112,
