Physics
For Physics Discussions
1,008 topics in this forum
-
- 2 replies
- 760 views
hello, I'm facing a huge problem in deciding what to do for my physics EE. i thought of many topics but nothing seems to fit into the criteria of a good topic. the latest one i thought of was: "to what extent is it true that a body, which initially moves at a particular speed starts moving with a speed closer to that of light, makes the factors of time dilation and length contraction become evident?" I am really confused about what to do.as my school doesn't have any proper apparatus for a good experimental topic.
-
- 0 replies
- 568 views
I am taking HL- English, History, and Physics and SL-Italian, Chemistry, and Math (IB Calculus). The Physics HL at my school is not an actual class and i have to do it independent study in the SL Physics class and was wondering if anyone has any tips or ideas on how i should go about taking this course and if i should look into a different HL elective (Im bad at Bio, Psych, and Business and want to pursue a science career in college)
Last reply by sofia.a, -
- 0 replies
- 1k views
Do I need to include background information on my IA? My topic is weird, I think it's cool but apparently no one else does since I can't find a single research or even a single web page talking about it. My topic is investigating the relationship between the number of magnets with same pole facing the ferromagnetic sphere in a configuration of a ferromagnetic sphere surrounded by multiple magnets and the magnitude of resultant magnetic field as measured from the ferromagnetic sphere. If you can think of some other research/investigation about this topic please let me know! If not, do I still need a background information section? My entire analysis had some vectors, …
Last reply by chrisss, -
- 0 replies
- 1.6k views
Yo peeps for my experiment I need to set up a columnal plate that gives rise to horizontal magnetic field lines. Do you guys have any idea how to set it up so that it gives high measurable magnetic field? It vv urgent thanks in advance
Last reply by IB is nuts, -
- 0 replies
- 1.3k views
I am doing Physics SL and thinking about some IA topics. I am interested in drone and would like to investigate on electromagnetic interference on drone/multi-copters. But i don't know what experiment should I conduct and what I am trying to find out. At the moment, I think I can use the Lenz's laws to investigate this topic. Can any physic experts provide some comments/suggestions (experiments, apparatus, formula)? Thank you and much appreciated.
Last reply by Lucky-, -
- 0 replies
- 578 views
NEED HELP ASAP! I am having some difficulty with formulating a question for my IA topic, which is harmonic frequencies. My dependent variable is the frequency. My independent variable are the different harmonics I am playing on the frets of a guitar. How do I come up with a question for that?
Last reply by csalv, -
- 2 replies
- 1.2k views
Apparently the page limit is 12 pages including title page, table of contents, and bibliography. I don't have the first two yet, some of my analyses are only in point forms (so might become longer) and already at 13 pages. Can I reduce margins to fit under page limit?
Last reply by IJustWanaPass, -
- 3 replies
- 822 views
How would an IA studying the change in refractive index of water with different concentrations of sugar go? What improvements should I make? Thanks
Last reply by Lixter, -
- 0 replies
- 3.3k views
Hi, I'm thinking of doing an IA on projectile motion of an arrow. However, I thought that finding the optimal angle to get the maximum range was too simple. So I thought of finding the relationship between the crosswind speed and the angle required to aim off to hit the centre of the target. I'm not exactly sure if this is feasible enough for an HL Physics IA. Can I get your opinions and suggestion on how I should improve or do this IA? For the experimental part, I'm still not sure how I am going to do it but I'm still thinking. If there are any sample IAs on projectile motions please share it with me if it's ok with you. Thank You!
Last reply by Nicholas, -
- 0 replies
- 689 views
Is the topic: how does the frequency vary with the height of water in the singing wine glasses? a good topic for internal assessment?
Last reply by dellvella, -
- 0 replies
- 2k views
Hello:) I basically took a test for IB Physics HL today, on Topic 4: Waves - only paper 2. The problem is, that for the last question I mistook 0.882 ms for 0.882 s, which got me the answers 0.21Hz and 0.34m/s when the real answers were 210Hz and 340m/s. I had to get the frequency before the speed, but since I got the frequency wrong in the first place the speed was also wrong, although the working process was right. I thought that I would normally get at least 2 out of 4 marks, thanks to ECF. However, I just took a look at the mark scheme and it doesn't talk about any ECF on the notes section - will I still receive 2 marks or will I receive 0..? Th…
Last reply by Minji Kim, -
- 1 reply
- 610 views
The real value of g found is (9.807 +/- 0.7) ms^-2 In an experiment, the value is found to be (10.4 +/- 0.7) ms^-2 State, with a reason, whether the experiment is accurate.
Last reply by IB`NOT`ez, -
- 1 reply
- 643 views
So I thought the uncertainty in the micrometer was half the smallest division so if the micrometer reads 0.01 mm then half the smallest division would be ± 0.005mm but now I'm seeing on some websites that it's not that.... help anybody? I would ask my teacher but she won't help me on my physics IA so I would be very appreciative
Last reply by kw0573, -
- 0 replies
- 1.6k views
Hi, I am looking for advice on my physics IA ASAP. I want to experiment with rubber bands and hysterisis. Would it be an acceptable IA to test hysterisis in a rubber band by adding and removing weights?
Last reply by sonnygrace, -
- 1 reply
- 827 views
I'm doing my IA on how changes in mass alter the rate at which a pendulum decelerates because of inertia and i have my data and stuff i just realized that i don't know this topic too well and its too late to change. also i'm not sure what exactly this should look like format wise. please help.
Last reply by kw0573, -
- 2 replies
- 1.3k views
I was planning on making a solid fuel rocket for my internal assessment and experimenting with momentum. So can I do experiments with rocket again on EE but this time it would be about aerodynamics or maybe a water rocket (I know its too simple for EE but I can't think of any other at the moment) for example?
Last reply by Ayça, -
- 1 reply
- 1.5k views
I struggle the most with the mechanics part of the course and I dislike to get dirty with deriving equations, especially since Im slow. Could I not just remember the equations for let´s say, projectile motion that are not included in the booklet and just plug in in stuff during the exam, or will I be penalized?
Last reply by IJustWanaPass, -
- 1 reply
- 764 views
I AM DOING MY EE IN PHYSICS. i am investigating the effects of diffraction on the voltage generation of solar panels. Is this good or not. the principles i may use are huygens wave theory, fraunhofer diffraction geometry. IS THIS A BAD TOPIC??? because the topic is kinda in the sylabbus. is it too simple of an experiment? please some guidance might help.
Last reply by QADS, -
- 0 replies
- 889 views
Hi I Still have no idea how an IA is supposed to be like for physics. Do y'all have any examples or other documents like marking scheme whatsoever? If so could you share it with me? And also share with me some tips on finding a new topic. Thank you SO much!
Last reply by Nicholas, -
- 0 replies
- 1.4k views
Hello I decided to conduct an experiment to investigate the lift of a toy helicopter for my Physics practical, and I am kind of stuck, does anyone have any ideas on which procedures do I have to take to measure all the necessary factors such as lift force, speed of rotor, air density etc. and I'd also be extremely grateful for suggestions on formulas which I could use. Thank you in advance, I will appreciate any help.
Last reply by Pilot, -
- 0 replies
- 1k views
Hello I decided to conduct an experiment to investigate the lift of a toy helicopter for my Physics practical, and I am kind of stuck, does anyone have any ideas on which procedures do I have to take to measure all the necessary factors such as lift force, speed of rotor, air density etc. and I'd also be extremely grateful for suggestions on formulas which I could use. Thank you in advance, I will appreciate any help.
Last reply by Pilot, -
- 0 replies
- 886 views
Hi guys, I have to come up with a physics IA idea by next week but I'm really stuck. I really want to do something relate to basketball since I really like basketball. Do you guys have any suggestion? Thank you so much and let's survive IB together.
Last reply by Le Brongu, -
- 0 replies
- 496 views
Where do students submit the 10 lab reports they did throughout the year? Do we give it to IB, put it in our profile, or just leave it with our teachers?
Last reply by IJustWanaPass, -
- 0 replies
- 475 views
Soooo basically our teacher hasn't even attempted to explain to my class how to do a Physics IA so i literally have no idea how to approach it. My research question is: "How is the rate of emptying of a bottle of water, affected by the diameter of the hole the water is leaking from?". ( I have 7 different bottles with different diameter holes, and ive made 3 markings at 0.5, 1 and 1.5 litres). Im not sure if this topic is ok, regardless, I have already gathered the data and its due in a few days so i doubt i could change it. If anyone has any ideas as to how i could approach this (i.e. structure) and what i could talk about i would really appreciate it
Last reply by Emmanuel, -
- 2 replies
- 1.1k views
Dear IB Physics students, Enjoy a quick but deep revision of the IB Physics syllabus: https://www.ib-physics.net/
Last reply by dreamyslife, -
- 1 reply
- 716 views
I just spent days and have written over 2,000 words to discover that what I calculated is far off any literature value on the internet. I obtained around 12 Pa*s when the values on the internet are less than one. I was just wondering if I can still score marks on the evaluation, even if I am really far off a true value? It's frustratig because I have gone over my working tons and tons of times and don't see areas where I could have gone wrong.
Last reply by Ahmededed, -
- 1 reply
- 1.5k views
Was wondering what is my terminal velocity uncertainty in m/s if I calculated it using video analysis, thank you!
Last reply by Light77, -
- 0 replies
- 979 views
So the equation I am testing is: . In order to find terminal velocity (vt) I used video analysis, but I am getting a negative terminal velocity. I was just wondering if this is possible? If so, does that mean the g is also negative? I am slightly confused because from the graphs that I've seen of this equation, I expected it to be a straight line through the origin as such. However, if my terminal velocity is negative, then I will not obtain this graph. Am I supposed to take the absolute value of the terminal velocity, is there something I am doing wrong? Thank you!
Last reply by Legend3107, -
- 1 reply
- 2.5k views
Hello! Could somebody explain the answers to the MCQs below please? Thanks!
Last reply by kw0573, -
- 3 replies
- 2.3k views
Hello all: So I had this question in a physics exam a few days back: For (b)(iii), I had stated that the atmospheric pressure was a factor as to why the mass of condensed steam would be different than calculated. This is because the boiling point of water would change according to the pressure, which would thereby affect the boiling point, hence impacting how much energy is transferred by steam while its temperature reduces to the boiling point. Besides, if the atmospheric pressure were higher than 1atm, then the boiling point of water would be greater than 100 degrees centigrade, which would mean the steam wouldn't exist at 100 degree celsius! Is this a val…
Last reply by kw0573, -
- 1 reply
- 610 views
This is related to calculating uncertainties. If I have 12.5400 +/- 0.0025 and I need to do the following: (4/3) * 3.14 * (12.5400 +/- 0.0025)3, what is my new uncertainty? I've read that I need to multiply the uncertainty by the power, ie .0025 * 3 and then I would multiply this by the constant 3.14 and (4/3) which would give me: +/- 0.0314 But I've also read that first you convert the uncertainty to a percentage, then add them, ie 12.543 +/- 0.06%, then I would simply multiply 12.543 * (4/3) * 3.14 and my uncertainty would stay the same at +/- 0.06% but this would give me an absolute uncertainty of like 495 which is completely different to method 1 …
Last reply by kw0573, -
- 1 reply
- 732 views
Hello people of IB Survival, I desperately need your help with brainstorming an idea for my Physics IA. I was thinking about doing an experiment on the affect of the angle made by a rooftop (which has crushed ice on it), on the range that the crushed ice covers - basically how further away it falls from the edge of the rooftop. This applies to real life since ice slipping off rooftops is an actual problem in countries that have those heavy snow fall days. But, I believe that we are meant to expand on the syllabus for the IA... and hence I think this RQ and this investigation would be too simple. Could I do this as my IA? Any suggestions would be appreciated x
Last reply by tim9800, -
- 4 replies
- 1.3k views
I am planning to do a physics IA on Hooke's Law, but our teacher told me to modify the topic how can I modify this?
Last reply by tim9800, -
- 0 replies
- 756 views
Hi all, I've been looking at the grade boundaries for IB Physics and have noticed their is no distinction between grade boundaries for different options (relativity, astrophysics etc...) in paper three. Does anybody know why this is, considering there are distinctions made between options for Mathematics HL which 'level' the playing field if one option was easier/harder than another. In this vain I'm thinking that it would be advantageous to go for astrophysics as it is by and large considered the easiest topic, however it'd be great to hear from people's past experiences of the options (the SL components preferably since I'm taking SL Phys). The class teacher…
Last reply by Meme Lord 8000, -
- 0 replies
- 649 views
I can't decide my physics IA Topics. I need to find some interesting topics. Please Help.
Last reply by Mayankita, -
- 1 reply
- 1.2k views
I'm in physics HL and I have to do my IA soon. I found this interesting equipment in my laboratory that launches metal balls with a set speed or launch angle. I wanted to do something with this equipment and came up with the topic of comparing "launch angle vs horizontal range." I'm worried if this is too easy for a physics HL student. My teacher said it's better to stick with an easy topic and do the writeup extremely thorough. If this is too easy, I'm also considering to compare "launch height vs horizontal range." Could you please recommend which would be a better topic, and if both are too easy, could you please give me some inspiration for other experiments that coul…
Last reply by tim9800, -
- 1 reply
- 570 views
So my physics teacher says that for anti neutrino you have to put a dash above the symbol, but my extra teacher says that you don't put a dash on anti neutrino, but on the normal neutrino. Who's right?
Last reply by tim9800, -
r
by Guest- 0 replies
- 533 views
h
-
- 1 reply
- 2.2k views
I am currently undergoing experimentation for my IA and I'm experimenting with Eddy's Currents and Lenz Law. For the formula I'm trying to solve, I need to calculate values for magnetic braking but I dont know how to do that and all the websites I googled have very complex formulas. Does anyone know a simpler way I can calculate the Force of Magnetic Braking?
Last reply by Wyatt Berckenhoff, -
- 3 replies
- 1.4k views
Hi there. I am a senior and our class this year is starting with the IA. I currently want to pursue a career as a neurosurgeon, so I was hoping that I could find some way to do my IA on something like the electromagnetic waves in the brain or maybe how those waves could be interfered with. Unfortunately, the brain is something that is rather difficult to get ahold of and measure, so I am at a bit of a loss. I know that we can use previously collected data, but I am also finding that to be a relatively difficult thing to find. Please let me know if you have any ideas! Thank you for your time.
Last reply by ibhelpertutors, -
- 0 replies
- 924 views
Hi everyone, I had purchased the online question bank for 2 years (It's still active for approximately 1 more year) and since I'm done with the IB, I no longer need it. If there's someone who would like to buy it, PM me All the best with the IB
Last reply by IBTopper, -
- 0 replies
- 1.1k views
Hello, everyone. I spent over 2 weeks in this summer trying to write a simulation for Stefan Boltzmann law and finally, i have finished and the simulation was very successful. It was almost the exact model of Stefan Boltzmann apparatus. The simulation takes parameters and calculates the change in temperature by time then I calculate this with another simulation. So when I gave this to my teacher she said that this is not good for the Physics IA and you need to find the relationship between the Intensity and temperature.I searched the sample Internal Assessments and almost all of them were about calculating some constant. I used this source for my Physics IA htt…
Last reply by SamirAliyev, -
- 1 reply
- 10.5k views
Hey guys, i was beginning my physic ia and i came terribly stumbled by what the actual format of the ia should be like, and what all i should include. Can someone please help me out because I have no idea what to do next
Last reply by Jaysun, -
- 1 reply
- 613 views
I am currently in 10th grade and I have to decide between Physics and Chemistry or Biology and Chemistry for the this year. I Chose Physics and Chemistry however I'm not sure If I chose the right subject, due to the fact I'm okay in Math and I usually get a 5 or a 6 in Math in the MYP. I have to decide in a week or so if I want to stay in Physics or move to Biology before the class is too full. The physics in 10th grade is apparently really easy, however I know from my brother that Physics HL is very difficult. I'm stuck between them and have no idea which one to chose, I don't want to waste this year learning something I won't do in the IB, as I will miss out on everythi…
Last reply by M_sterman, -
Hey guys this is my first time using IB Survival and I found out that it is really beneficial for the IB student. My Physics EE revolves around the effect wheels have on the recoil momentum of a potato cannon. RQ: To what extent does the rolling friction of wheels affect the recoil momentum of a potato cannon after launch? I just want your opinion on my research question and my topic, and if you believe it can be improved please let me know. As for the experiment itself, I am planning on building a potato cannon (with and without wheels) and comparing these three things after the launch of the potato: the location of the cannon, the speed of the potato, and…
Last reply by SC2Player, -
- 0 replies
- 732 views
I'm doing my ee in physics and I'm just looking for some tips.
Last reply by SasukeUchiha01, -
- 0 replies
- 555 views
Hey guys this is my first time using IB Survival and I found out that it is really beneficial for the IB student. My Physics EE revolves around the effect wheels have on the recoil momentum of a potato cannon. RQ: To what extent does the rolling friction of wheels affect the recoil momentum of a potato cannon after launch? I just want your opinion on my research question and my topic, and if you believe it can be improved please let me know. As for the experiment itself, I am planning on building a potato cannon (with and without wheels) and comparing these three things after the launch of the potato: the location of the cannon, the speed of the potato, and…
Last reply by SasukeUchiha01, -
- 1 reply
- 600 views
hello everyone, I had done a physics ia experiment and the thing is my aim and the result didn't match quite much. My hypothesis was proven kind of wrong, there were no obvious relationship and now I don't know whether I failed my ia or not. I know how to explain that graph but still there is no relationship. Anyone knows whether I'm still on the right track or should I simply change the whole ia and do it again. thank you for any advice
Last reply by kw0573, -
- 3 replies
- 1.5k views
Hello guys, I have a mechanics test soon for physics hl. So far in my prep I have done tsokos text book questions, worksheets that my teacher has provided me and question bank questions. So should this be enough? I am asking this coz I know that Ib is really famous in surprising u in tests. I heard the tests will be completely different to whats taught in class. Please someone please give me more advice on this, I really want to do well in this test.
Last reply by SC2Player, -
- 4 replies
- 864 views
Hello everyone, My exams will be in November this year and I was thinking to revise all HL units comprehensively so that I can easily move to doing papers. Can anyone suggest good Youtuber's or any online teacher who teaches comprehensively, not superficial. Because I'm normally a self learner, I can't even learn concepts from my teacher at school, I just get familiarized and then head back home study and learn it. Therefore I either need good textbook or a good YouTube channel to reduce my study time to minimum but effective at the same time to start solving past papers. I currently use Cambridge book by Tsokos. Any help appreciated
Last reply by kw0573,