Physics
For Physics Discussions
1,003 topics in this forum
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Hello people, Are there any sites with Physics IB exercises to practice on? Not past papers.
Last reply by IBsciencewhiz, -
Physics HL/SL Help 1 2 3 4 22
by Drake Glau- 420 replies
- 86.3k views
There's a biology and chemistry help thread, figured a physics one would be appreciated by a few people Hoping some people will check here and help people who have questions, I'll try my best but my knowledge of physics does not go very far honestly and it's not my best science
Last reply by evan11, -
- 49 replies
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Update (May 2014) - Added all of topic 3: Thermal Physics I've been an IB teacher for many years, and enjoy helping out more than just my own students. With this in mind, I am working on a series of free videos on my own studynova website (they are all free there, plus you can get all the notes I make), but am also mirroring them on Youtube. These videos are about specific topics within the IB Physics SL or HL curriculum. So if there are specific topics that you'd like to see done in detail with lots of examples, just post it in this thread. I'll take a look and see if there is any overwhelming consensus on any topics, and then start doing videos on those ones. I can go…
Last reply by lizgrey, -
- 20 replies
- 13.9k views
Hello IB physicists! I just made an app that includes comprehensive notes for the 2016 first assessment IB Physics syllabus. The app has detailed notes with colorful pictures for all topics plus option D (astrophysics) (engineering physics coming soon) and are made perfectly according to the new syllabus by subtopics so it makes sure that you don't miss out any content that you need to learn for the exams! The link to the app is https://play.google.com/store/apps/details?id=io.gonative.android.qnjjl&hl=en. Feel free to check it out! Happy revising! :') Update: All notes are also available on https://ibphysics.org/!
Last reply by SamirAliyev, -
Thought I would follow the trend and make one of these threads for poor, forgotten Physics. B) My class is doing Biomedical Physics and Optics. I actually think there are a lot of fascinating options for Physics. I was reading through my textbook, and the one where people fly into outer space and age slower is really interesting. Not that I believe that it would actually happen. I don't care which genius came up with that theory, I refuse to believe it. Prove me wrong.
Last reply by Magician, -
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- 1 follower
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hey. im currently in my IB1 year and take physics as an HL. my only problem is that MY TEACHER DOESNT TEACH???!???!?! he just asks us to read whats on the powerpoint slide that he took from a website, then he takes a look at an example and briefly explain how and why they got that answer. he just doesn't make sense and I really dont want his teaching to affect how well I do. Im currently struggling a lot and I need help before its too late. does anyone know any good websites/ tutoring videos that can help me ?? PLEASE HELP ASAP!!!
Last reply by stargirl01, -
- 1 follower
- 6 replies
- 11.2k views
Hey guys, Studying for the HL physics exam, and I noticed some of the important formulas are not in the data booklet. Can anyone who wrote the exam already/ is studying also give me a good list of important formulas to memorize which aren't in the data booklet?
Last reply by sam_sammu, -
- 0 replies
- 104 views
On the IB HL Physics exam, if not stated in the problem, do we assume there is or isn't air resistance. For example if a question involves a pendulum and a magnetic field, should we assume that there is air resistance?
Last reply by BeastBreath, -
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- 127 views
I am doing my physics extended essay on how the change in wavelength of incident light on a solar cell affects its efficiency. However, after collecting data and drawing a graph, I figured that there is no correlation. Does this mean scoring high on the EE is not possible now?
Last reply by Manas, -
- 2 followers
- 2 replies
- 462 views
Like both but can only choose 1. I’m not really sure how to decide. Ive already chosen chem but feel like physics is more suitable as I’m taking hl maths and also I do not like organic chem. from what I’ve heard both are equally challenging subjects. What made you decide to choose one over the other? Btw I’m not pursuing a science degree in the future thanks
Last reply by Gazuar, -
Hi. So I'm a Physics HL student in IB and I'm designing a circuit for my Physics IA. (think of it as a lab/project if you're not familiar with IB) I'm required to have an independent variable of 7 dif. values and a dependant variable. For my IA, I'm trying to build a diode bridge full rectification circuit. What I will do is I will connect different capacitors of different capacitance values, and connect the circuit to an oscilloscope to read the ripple values generated. According to formulas I've seen online, my hypothesis is that when I increase the capacitance, the ripple will decrease. By showing the relationship between capacitance and ripple, I plan to conclude…
Last reply by kennys, -
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- 1 follower
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Hello! I am doing my physics Sl IA on refractive index (how does refractive index of water change with sugar concentration). I've calculated the uncertainty of concentration and of the angle of refraction, but I'm a bit stuck when it comes to calculating the uncertainty of the refractive index. Since it is part of Snell's law, I'm not sure how uncertainties can be calculated when there are trigonometric functions like sin. Can someone help me out. Is there a general formula?
Last reply by yaraa, -
- 3 followers
- 3 replies
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Hi fellow IB students! I just wanted to let you know that there is a really useful and cool tool for IB Physics. Me and my classmate (i.e. also an IB student) have developed a twitter and an instagram for IB Physics related things and we would really appreciate if you followed us! It is basically something you can access from your mobile device at any time (since most of us have twitter and/or instagram accounts) and is therefore very available and handy. We post summaries on IB Physics topics as pictures on instagram (both SL and HL topics) and useful tips/stuff that relate to IB Physics both on twitter and instagram. On twitter we also post interesting Physics fact…
Last reply by stephanie4054, -
- 11 replies
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Starting IB soon and I was wondering how hard is Physics at a HL, I mean do you need to know anything beforehand (as my school's Physics department was REALLY bad so I didn't really learn much). How much math is involved (I chose math SL)? Anything helpful would be appreciated, as I'm pretty nervous!
Last reply by Gazuar, -
- 1 follower
- 17 replies
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I am currently doing Physics HL and my exams are in May, finding it kind of difficult (some parts are somewhat easy while some very hard to compherehend). Yet even for the easy parts the IB manages to set difficult questions thus screwing you over. What are your thoughts on a specific textbook/study guide that works well for you? I'm not really having a panic attack but am a bit worried. I currently have the Tsokos and Oxford Physics Study Guide by Tim Kirk as a textbook and study guide. Oh and we are currently just starting the HL bit for Electricity (Electromagentic Induction), is that normal considering we are this far in the course?
Last reply by tjustin, -
- 8 replies
- 2.3k views
Does anyone know if there is much difference between the following two textbooks? http://www.amazon.com/Physics-Principles-Applications-MasteringPhysics-Edition/dp/032168785X http://www.amazon.com/Higher-Level-Physics-IB-Diploma/dp/0435994425 They are both by Pearson but I've been recommended the latter, with many saying that it is one of the best physics textbooks out there. Are there any other textbooks or combinations which you would recommend for PHYSICS HL? Thank you!
Last reply by tjustin, -
- 0 replies
- 236 views
Hi. So, for my physics IA topic I was thinking of doing an experiment on spinning tops. Could I measure the force of my hand when it spins the top somehow? If I could I would keep that a constant variable. but if not, could i use an external force to cause the top to spin, like a beyblade uses? For my independent variable I was thinking of changing the size of the top. and dependent would be the amount of time the top spins. and my research question would be "How does changing the size of a spining top affect the amount of time it spins" How does this idea sound? Does it make sense, and would it be a good physics experiment? Thanks in adva…
Last reply by SpinningTop, -
- 1 reply
- 241 views
I calculated an uncertainty of 100% in my IA. I’ve tripled checked my calculations and am pretty sure they are correct. My experiment was not very great and have written about it extensively in my conclusion and identified how I should improve. Will the high uncertainty affect my grade?
Last reply by AngryEngie, -
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Physics Digital Technology Camera Design Lab
by Guest Joon Cha- 2 replies
- 1.1k views
Hello, I am IB HL Year 1 Student. Today my teacher gave us design lab (one week before exams... ) she said we have to explore our camera, so I'm using my phone camera. It needs to have dependent and independent as well as controlled variables.... However, I don't know what to do, could you please help me? Your help will help me.
Last reply by Frich1983, -
- 1 follower
- 1 reply
- 759 views
I've been trying to find an interesting HL physics IA topic. As I'm interested in architecture and civil engineering, I have been looking at experiments including cantilevers. Anyone know any good IA topics relating to construction or civil engineer? Thank you!
Last reply by IBsciencewhiz, -
- 1 follower
- 3 replies
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I am really stuck on how to solve these questions and I don't understand why the mark scheme says that the answers for question 8, 12 and 14 are A, A and D, respectively. I would greatly appreciate any help/suggestions/tips!! These questions are from the Paper 1 in May 2018 Timezone 2.
Last reply by IBsciencewhiz, -
- 2 replies
- 378 views
I am studying Physics HL and I also play (Damost daily). So, I wanted to do an IA related to the sweet Spot of Tennis Rockets. My Problem is, I can't find a clear question or relationship, that can be represented through a Graph. any advises?
Last reply by dave_2469, -
- 1 follower
- 0 replies
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My topic is "The effects of container on the freezing points of different salt solutions." and my advisor pointed out an issue with the experiment which was, I could not determine the specific time that the solution reaches its freezing point if I was to conduct the experiment. Any tips on how I could determine the specific time of freezing or if simulation would be more effective any simulation software's for recommendation. Thank you
Last reply by Athenaloveslemon, -
- 1 follower
- 0 replies
- 281 views
I am going through questions in the Tsokos textbook, but cant find any reliable way to see solutions to my answers, as well as explanations. Does anyone have any idea on where I can find explanations for questions? Thank You.
Last reply by HasYas12, -
- 0 replies
- 309 views
I'm in IBDP year 2 and we're in the process of finalizing our IAs. We got our feedback for our first drafts and my teacher told me my IA can't get above a 5. I don't know why my teacher approved my topic in the first place knowing I couldn't score well, but alas, here we are. The problem is that my topic is super simple. I was investigating the acceleration of a falling mass on a ramp, which is really basic for a HL IA. Regardless, I'm not opposed to just restarting with a new reasearch question, but I have no idea what else I can do with the data I have. My investigation was changing the angle of the ramp and timing the acceleration of the mass according to the angl…
Last reply by GonnaCry, -
- 1 follower
- 0 replies
- 264 views
Hi guys please can someone read through my EE and tell me what I am missing and what I need to do. I am really struggling to complete it. Please hep ASAP PHYSICS - BOBBIN TRACTOR 1.docx
Last reply by alligatorgiraffelollipop, -
- 0 replies
- 228 views
Right now i've taken Math AA HL, Physics HL, Economics HL and English A SL, Chinese AB-initio, Chemistry SL I've tried Math HL for a bit and its incredibly hectic, coming from International maths from IGCSE even the basic concepts are hard for me, so i'm considering stepping down to AA SL because i could get a 6,7 for SL rather than struggle and take down all my HL's, as physics HL also a very intensive course (also math based) is a huge course too, i've decided to take SL math in order to invest time and effort in Physics and Sl math in order to get a good IB result, But what i worry about is that if i take this step down, will universities in the US or Canada (wher…
Last reply by RahilJoshi, -
- 0 replies
- 284 views
Hello, I was wondering if I could get some help regarding my Physics EE? I am examining how changing the mass of a copper plate at the end of a pendulum effects the stopping distance of that plate when passing through a horseshoe magnet directly beneath it. Due to the changing magnetic field the copper plate is temporarily magnetized which generates a secondary magnetic field. This secondary field resists the one that induced it and slows down the copper plate. I am having trouble with my hypothesis and determining what will happen. I was wondering if increasing the mass of the copper plate would increase its stopping distance due to the greater force acting on…
Last reply by DL1, -
- 4 replies
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My Physics IA is "how does the diameter of a guitar string affect the fundamental frequency, provided the tension remains constant?" and all my practical work finished. I organized my data into a spreadsheet that also calculates the fundamental frequency to compare with my results, which can also be used to find a correlation in diameter and frequency. However, I am lost; my results show a reasonable frequency, but my calculations seem way off. I will provide the link for the spreadsheet via PM. Can you see what is actually wrong, and if so tell me how to correct it? My paper is due in 3 weeks and I don't want this to stall me.
Last reply by CharleneNoye, -
- 0 replies
- 447 views
Hey, I'm struggling to come up with an idea for my Physics SL IA since I am having online classes due to COVID. I've been thinking about the relationship between the rate of temperature cooling down of an object and the thermal capacity of a surface. But the environmental temperature will be an issue since I don't have air conditioners. Therefore, I was thinking also about doing something related to the The Coandă Effect and the mass of smth. What do you think? I really need some help . I need to do everything at home, what do you suggest me?
Last reply by leochavarry, -
- 12 replies
- 40.8k views
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
Last reply by rockruhaan, -
- 3 replies
- 18.4k views
Hi guys, I'm currently writing my IA, and I have about 2500 words in 6 pages... Does an IA have an exact limit for page count? Thanksssss
Last reply by McLaubacher, -
- 0 replies
- 395 views
Hey there everyone, here are my notes for Chapter 2: Mechanics and Chapter 6: Circular Motion and Gravitaiton, and posted them online for free. I used these to study for the exams however, since they were cancelled, they never got much use - but still got a 7, so they might help you out, I gave them some final touches and I'm quite about how they turned out. Give them a look if you got some time, and feedback is much appreciated!!! Chapter 2 and Chapter 6 Notes
Last reply by broly, -
- 1 reply
- 376 views
hello, please help me i have a question for my EE. for a set of measurements or calculations, should i make them have the same sig figs or same decimal places?
Last reply by Indiaca, -
- 6 replies
- 4.9k views
Heya, So in the beginning of IB11, my teacher advised us all to do an IA on a topic we actually like and are interested in. I had two main ideas in mind, one was doing an experiment on something related to hurling - a Gaelic sport which I've recently picked up through the wonders of CAS, and the other idea was doing something related to solar power - because I'm big on renewables and my dad used to be a lobbyist for solar power companies. My teacher said no to the hurling idea because he thought it would be too hard to find enough controlled variables, so I went with the solar power topic. I did that. It failed miserably. I'm not gonna lie, Physics is probably my weak…
Last reply by subho, -
- 2 followers
- 2 replies
- 767 views
Helppppp! I can't think of any ideas to do for my physics ia... Could anyone give me some physics ia ideas??
Last reply by EmSu2020, -
- 0 replies
- 2k views
Hello, I teach IB Physics and have uploaded close to 150 videos on Youtube with key concepts, past exam video solutions and IA tips. Here is an example playlist I hope you find it useful Would love to hear your feedback! Thanks!
Last reply by PeterK, -
- 0 replies
- 405 views
I am currently writing my physics IA and I do not know what to do. My teacher is new so she doesn't understand the IB system and I don't know if I can even use my current experiment. From what I have now, I can make graphs and compare results - but I can't do any calculations whatsoever. How badly will this affect my grade, are calculations a requirement or is it just a formality? I would get the same result, but calculating would just be another approach. Please help me if anyone can!
Last reply by Ast, -
- 0 replies
- 563 views
Hello there, I am a student that takes physics HL. I have been looking for a topic that is not very complex to be able to go in-depth into but I don’t know if it’s a good idea to take an easy topic. I am doing the relationship between time period and length of a string. It looks like an easy IA and done many times previously, (according to my teacher doesn’t matter if it is done a lot I just have to interpret it in my own way) Do you recommend me to continue with this topic or not? Also how can I increase the complexity incase it is needed? (I looked at different amplitudes but the difference is almost nothing so I decided to avoid amplitude) Thanks a lo…
Last reply by General_MO, -
- 0 replies
- 413 views
Hello there, I am a student that takes physics HL. I have been looking for a topic that is not very complex to be able to go in-depth into but I don’t know if it’s a good idea to take an easy topic. I am doing the relationship between time period and length of a string. It looks like an easy IA and done many times previously, (according to my teacher doesn’t matter if it is done a lot I just have to interpret it in my own way) Do you recommend me to continue with this topic or not? Also how can I increase the complexity incase it is needed? (I looked at different amplitudes but the difference is almost nothing so I decided to avoid amplitude) Thanks a lo…
Last reply by General_MO, -
- 0 replies
- 659 views
Hi, I'm really desperate, I've been all this month trying to get help from my teacher to help me a little with my internal idea. I wanted to do something that has to do with sound and I thought about sound absorption but I don't know how to formulate the internal in order to get something that could mark high. I'm doing Physics SL. Thank you
Last reply by riki631, -
- 4 replies
- 3.9k views
Greetings fellow IB (ex)students! I have written my Physics IA under the title "Investigating the Relationship between the Type of Material and the Coefficient of Static Friction". In my lab , I have used 6 blocks of different materials and put them on a wooden ramp. I then tilted the ramp until the block would start to slide, hence recording the angle of inclination and finding out the coefficient of the block's static friction by a derived formula. I conclude stating which one of the tested materials has the highest coefficient of static friction and that there is a direct relationship between material and friction. Is this a valid IA topic or too simple? Thanks i…
Last reply by ojas123456, -
- 0 replies
- 436 views
Hello, I teach IB Physics and just wanted to let you know about the latest videos I uploaded on Youtube in addition to over 100 other videos: Sub-topic 4.1 - Simple Harmonic Oscillations I hope that it is useful for you
Last reply by PeterK, -
- 0 replies
- 1k views
I have been cracking my head on this one MCQ for too long now. For the following question, I am getting the answer W > P + R which is wrong: The diagram shows a girl attempting (but failing) to lift a heavy suitcase of weight W. The magnitude of the vertical upwards pull of the girl on the suitcase is P and the magnitude of the vertical reaction of the floor on the suitcase is R. Write an equation correctly relates W, P and R. The answer is W = P + R As the question said that she is failing to lift the suitcase, I thought the Weight acting downwards would be more than the sum of P and R. Why is that wrong? Also, just to confirm, R is the force actin…
Last reply by snehahahal, -
- 1 follower
- 1 reply
- 576 views
Hi everyone. I have been researching a topic for my physics IA for a while now, and have already got all my equipment + formula ready to start. To my shock though, after doing more research I found my experiment is quite similar to an example EE on the IB website, but only after I already started! I have never had any intention to copy, but I want to be sure it doesn't seem like I did. Thankfully, I believe my work is a big improvement on it. Firstly, I derive many of the formulae the example simply states without explaining, showing my understanding of the concepts and explaining them step-by-step. The example and mine are trying to prove the same relationship (alth…
Last reply by kw0573, -
- 0 replies
- 451 views
I have come across a little addin for excel that helps you visualize the equations that you have entered in excel. Its called fxrender . This is wonderful when trying to put equations into excel since you can see the equation as you would write it. . https://fxrender.codecogs.com/home. What's even better its cheap!
Last reply by Twink, -
- 0 replies
- 510 views
Hello, I have made and uploaded over a hundred IB Physics videos on Youtube and will be adding more during the coming weeks. Feel free to check them out here: https://www.youtube.com/channel/UCGZ55FHT1TEHVh1grhOBReA I hope you find them useful
Last reply by PeterK, -
- 0 replies
- 439 views
Hello everyone, Anyone knows a good topic to write a physics IA preferarably something about energy generation? Thanks in advance.
Last reply by Dabber, -
- 2 replies
- 615 views
I want to research about thermal physics on my IA, but don't have any idea about where to start. Can someone give me some suggestion?
Last reply by RayY1105,
