Physics
For Physics Discussions
992 topics in this forum
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- 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, -
Physics HL/SL Help 1 2 3 4 21
by Drake Glau- 419 replies
- 73.8k 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 Cici2017, -
- 20 replies
- 12.9k 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, -
Hello people, Are there any sites with Physics IB exercises to practice on? Not past papers.
Last reply by Ludwig S, -
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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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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, -
- 1 follower
- 0 replies
- 72 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, -
- 1 follower
- 1 reply
- 129 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 Ibrahimphysicstennis, -
- 1 follower
- 2 replies
- 1.4k views
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 Reyanish, -
- 0 replies
- 192 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 Angel12, -
- 1 follower
- 4 replies
- 1.3k views
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, -
- 1 follower
- 0 replies
- 127 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, -
- 2 followers
- 1 reply
- 308 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 Resorvoire, -
- 2 followers
- 12 replies
- 34.4k 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
- 16.9k 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, -
- 1 follower
- 0 replies
- 158 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 follower
- 1 reply
- 144 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, -
- 1 follower
- 6 replies
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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, -
- 3 followers
- 2 replies
- 421 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
- 192 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
- 285 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
- 195 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, -
- 10 replies
- 14.3k views
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 Abhinav2703, -
- 1 follower
- 0 replies
- 335 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
- 3.1k 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, -
- 1 follower
- 0 replies
- 242 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, -
- 1 follower
- 0 replies
- 426 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, -
- 2 followers
- 1 reply
- 320 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
- 229 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, -
- 1 follower
- 0 replies
- 321 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
- 277 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 followers
- 2 replies
- 424 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, -
- 1 follower
- 0 replies
- 436 views
Hi Everyone, I created a condensed version of the interactive IB Physics Revision Calendar for the November 2020 exams that I posted earlier and attaching it here. Feel free to have a look and share with friends if you find it useful Take care and stay safe! IB Physics November 2020 Exam Revision Calendar.pdf
Last reply by PeterK, -
- 1 follower
- 0 replies
- 545 views
Hello November 2020 IB Physics students! Our team at PaperPlainz.com created this calendar to help you save time and energy when getting ready for your IB Physics exams. The calendar is attached and here is a short Youtube video with helpful tips on how to maximise the use of this calendar. Enjoy Peter from the PaperPlainz Team November 2020 IB Physics Revision Calendar.pdf
Last reply by PeterK, -
- 2 followers
- 1 reply
- 395 views
Hi, I am doing my physics ia project about lift force. I have done a lot of research on how to measure the lift force with Bernoulli principle, and after I done the experiment. I found that it may not followed that principle As a result, I searched the other ways to explain the lift force, and realized probably Bernoulli principle was not the best explanation. However, I did found some trend and relationship between variablesin my data, which obeys the Bernoulli principle but not correct according to the real life. That's why I come here and ask for help. THANKS!
Last reply by sarahaction, -
- 6 replies
- 4.2k views
What can i do/find with a ping pong ball? Any ideas? I was thinking of finding the time it takes for the ball to stop bouncing as you change the height!! LOL
Last reply by godxy, -
- 5 replies
- 612 views
I'm a first year IBDP student learning measurements and uncertainties I was doing past paper questions and their involved questions where you have to draw the line of best fit. In this the line of best fit is a curve. I'm unable to draw a smooth and continuous curve any suggestions or tips on what to do?
Last reply by PeterK, -
- 3 replies
- 1k views
Hi! I wanted to do a topic on wien's displacement law but I do not have a research question. Any suggestions?
Last reply by IBchemistry, -
- 4 replies
- 4.6k views
Hello, We are now getting started with our IA labs in SL Physics, however I'm not sure if the topic I've chosen is appropriate. I have chosen to find the correlation between the time needed for a coffee filter to drop from a certain heightand its mass (increased by adding washers to the inside of the filter). I was going to focus on how the increased mass would lead to increased acceleration and speed. Is this experiment too simple for an IA design lab? Or does IB simply grade you on the basis of how well you identify variables, perform an experiment in an organized fashion, and be able to understand errors made? I was also considering adding an element of air resistance …
Last reply by PeterK, -
- 0 replies
- 788 views
Hello IB Physics Students, We are excited to share with you our newest addition: The complete, step-by-step, simple-to-use PaperPlainz IB Physics Internal Assessment Guide! To give you even more support with your IA work, we also launched the PaperPlainz Facebook IA Community where you can ask questions, clarify doubts and most importantly support each other during the IA process. Click here when you are ready to join Just a reminder that our offer to give full access, free of charge to all PaperPlainz resources to schools that are closed due to the COVID-19 situation is still ope…
Last reply by PeterK, -
Physics EE
by Kek- 0 replies
- 561 views
Hi guys, could someone please help me to find a formula to calculate the center of gravity for an object with a mass that is not uniform.
Last reply by Kek, -
- 2 replies
- 651 views
So in about a month I have to finalise my RQ, and my supervisor insists on before picking a topic to find 2 contrasting research papers. he says that without 2 conflicting research papers the highest grade I can get is a C. I am really stuck and cannot think of anything. I must have spent 7 hours just researching for a topic. I would like to know if any of you guys have any ideas. The topic which I am interested in is mechanics in general, electricity is a possibility as well. It doesn't have to be a topic which has 2 conflicting theories, it could also just be a good idea, and i'll do the research for the research papers after that. Thank You
Last reply by Pol_Recasens, -
- 2 replies
- 764 views
Hi, I wanted to do an IA investigating the relationship between either: - the refractive index of a material and Brewster's angle, or - the wavelength of incident light and Brewster's angle I am not sure how to even measure the wavelength of incident light, and to calculate Brewster's angle I would also need the wavelength of the refracted light which I don't know how to measure either. I also don't know how to measure refractive index, so I'm kinda stuck there. I was wondering if someone could help me find a source which would explain how to carry out an experiment to find the relationship between the two variables (I already know that refractive inde…
Last reply by MA123, -
- 6 replies
- 3.5k views
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
Last reply by kw0573, -
- 0 replies
- 672 views
Hello IB Physics Students, Our team at PaperPlainz.com decided to provide temporary full access, free of charge, to all of our resources to support your online learning during the COVID-19 school closures. If your school is affected, please ask your IB Coordinator, Science department head, or Physics teacher to send us an email to [email protected] for details. Looking forward to hearing from your school! The PaperPlainz Team
Last reply by PeterK, -
- 0 replies
- 659 views
Hi guys, can anyone explain to me what we need to know about the practicals for paper 3? Are the questions usually focused on method or outcomes? What should I expect to be tested on? I remember the experiments we did in class but I don't know if I am ready to answer questions about them...
Last reply by Le Chair, -
- 0 replies
- 656 views
Hello IB Physics Students, We are currently working hard to make our new IB Physics website even better and we are looking for website testers Would you like to get free access to all resources on PaperPlainz for three months? In exchange, we only ask you to let us know if you spot something that you think we can improve on. Interested? Send us an email to [email protected]! Peter from the PaperPlainz Team
Last reply by PeterK, -
- 1 reply
- 1.1k views
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 someth…
Last reply by louisb, -
- 1 reply
- 2.7k views
There is this one problem from past exam papers which I cannot seem to do: The air in a kitchen has pressure 1 .0 x 105 Pa and temperature 22'C. A refrigerator of internal volume 0.36 m^3 is installed in the kitchen. (a) With the door open the air in the refrigerator is initially at the same temperature and pressure as the air in the kitchen. Calculate the number of molecules of air in the refrigerator. (b) The refrigerator door is closed. The air in the refrigerator is cooled to 5.0'C and the number of air molecules in the refrigerator stays the same. (i) Determine the pressure of the air inside the refrigerator. (ii) The door of the refri…
Last reply by kw0573, -
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 …
Last reply by fatakkk,
