As a first year IB physics teacher this is extremely useful for future years. I had to submit my marks and comments for my student's IAs on 4-17-2020, I think I was too lenient. I won't be next year. Thanks for all of your great videos, they are an outstanding resource!
Hi sir, do you think it would be ok for hl physics students to investigate value of g through a pendulum experiment? Is it too easy and do you have any suggestions on how to approach it? Thank you so much for your time
@@donerphysics Thank you so much for your reply sir. Do you think it would be a good idea to look at how different initial angles of the circular pendulum will affect the accuracy of g?
Hi, thanks for this beneficial video! I just wanted to take your opinion and suggestions on my IB physics HL IA which is about finding the time constant of capacitors. I am thinking of fully charging a capacitor and then discharging while measuring how voltage and current changes with time. Is finding time constant of only one capacitor enough or should I use different capacitors to investigate relationship between time constant and capacitance of a capacitor, for example? Do you have any suggestions on how I can improve this ia, or is it sufficient to get a good grade for HL physics? Any quick help would be really appreciated since I have a limited couple of days to use lab in quarantine conditions.
I have not had a student do this before but it seems like a good idea, and will be at an appropriate level of difficulty if you pay attention to experimental details such as uncertainties.
Is investigating the relationship between sugar concentration in water and the rate of cooling of water a good idea? I plan on graphing the cooling constants of several solutions with differing sugar concentrations against the sugar concentration of each solution to analyze the relationship. Any advice? Also is it fine if I don't use a calorimeter for experiments involving newton's law of cooling?
@@donerphysics Thanks for the feedback. That is something I am worried about that as well. I'm not sure how much mass of sugar I'll have to add to even record a noticeable change. Hopefully, there is a significant change or I'll have to perform a different experiment. Any advice on any IA experiments that are feasible to perform at home given my limited time?
I appreciate the video, it helped me a lot while writing the IA. Just a quick question, do you know if bibliography and appendices are included in the 12 page limit. I cannot find the relevant information anywhere. Thanks in advance.
12 pages is a rough guideline. What they are really looking for is that you write in a concise manner. You might write only six pages and lose marks because you are "talking in circles," or you might write 15 pages and not lose marks because everything you write is relevant and to the point. Appendices that are large amounts of data would not be part of the 12 page guideline. A bibliography is typically one page, and does not need to be included. Most students lose marks for not writing concisely.
Hello. Actually I used a simulation based IA. Actually I had to use a simulation because I took the variance of time period of a pendulum vs the angle and the problem is that for the first 4 readings I varied the angle by 10 degrees and the difference was only in the range of 0.02-0.05s so logically in a human experiment it doesn't really make sense to conclude anything from this as the reaction time is generally slow and even with multiple readings the error bars will surely cross the other reading and you won't have any explanation but the problem is that I think I may get a bit low marks because the markscheme talks about error a lot
Hi, can you please help me modify my topic? How does temperature affect the electrical resistance and conductivity of a copper wire? My teacher said that the topic is too straight forward so I should add something to it so that it looks like a research topic, not a normal lab investigation
Hey chris doner,awesome videooo, i have a question, what means error bars in the part interpretation?does it mean to make a graph of error bars on a curve in the same graph?
Whenever ever you make a measurement, there is an uncertainty. The error bars are visual representations of the sizes of those uncertainties. See my video on recording uncertainties.
Writing words such as Introduction, Procedure etc. for the different sections of your report. You might even have subtitles for your subtitles. They help the reader know what to expect.
Is it OK if the graph is not a linear/continuous graph but a bar graph? because the student used a data-based to find which stars in the Leo constellation are in the same cluster and he plotted the graph with X-axis is the name of the stars and Y-axis is the distance between each star relative to earth. His research question is "Are the position of stars in the Leo constellation in the same cluster with its neighboring stars?"
I actually got excited when you uploaded this video, like screaming 😂😂
Good to hear. Do you feel more confident about what to do now?
As a first year IB physics teacher this is extremely useful for future years. I had to submit my marks and comments for my student's IAs on 4-17-2020, I think I was too lenient. I won't be next year. Thanks for all of your great videos, they are an outstanding resource!
Glad it was helpful!
Hi sir, do you think it would be ok for hl physics students to investigate value of g through a pendulum experiment? Is it too easy and do you have any suggestions on how to approach it? Thank you so much for your time
You wouldn't score well in personal engagement but that is only worth two marks... maybe try a circular pendulum.
@@donerphysics Thank you so much for your reply sir. Do you think it would be a good idea to look at how different initial angles of the circular pendulum will affect the accuracy of g?
It has lots of potential.
Hi, thanks for this beneficial video! I just wanted to take your opinion and suggestions on my IB physics HL IA which is about finding the time constant of capacitors. I am thinking of fully charging a capacitor and then discharging while measuring how voltage and current changes with time. Is finding time constant of only one capacitor enough or should I use different capacitors to investigate relationship between time constant and capacitance of a capacitor, for example? Do you have any suggestions on how I can improve this ia, or is it sufficient to get a good grade for HL physics? Any quick help would be really appreciated since I have a limited couple of days to use lab in quarantine conditions.
I have not had a student do this before but it seems like a good idea, and will be at an appropriate level of difficulty if you pay attention to experimental details such as uncertainties.
Is investigating the relationship between sugar concentration in water and the rate of cooling of water a good idea? I plan on graphing the cooling constants of several solutions with differing sugar concentrations against the sugar concentration of each solution to analyze the relationship. Any advice? Also is it fine if I don't use a calorimeter for experiments involving newton's law of cooling?
It might work. I am not sure that you will see a large enough change in the cooling rate.
@@donerphysics Thanks for the feedback. That is something I am worried about that as well. I'm not sure how much mass of sugar I'll have to add to even record a noticeable change. Hopefully, there is a significant change or I'll have to perform a different experiment. Any advice on any IA experiments that are feasible to perform at home given my limited time?
I appreciate the video, it helped me a lot while writing the IA. Just a quick question, do you know if bibliography and appendices are included in the 12 page limit. I cannot find the relevant information anywhere.
Thanks in advance.
12 pages is a rough guideline. What they are really looking for is that you write in a concise manner. You might write only six pages and lose marks because you are "talking in circles," or you might write 15 pages and not lose marks because everything you write is relevant and to the point. Appendices that are large amounts of data would not be part of the 12 page guideline. A bibliography is typically one page, and does not need to be included. Most students lose marks for not writing concisely.
@@donerphysics Thank You very much.
Hey, i want to make my physics IA on temperature guns, but i’m not sure how to go about this
Thank you very much. My theachers never tell me these stuff.
Happy to help!
Thank you for this video .I will definitely share it with my students
Please do!
Hello. Actually I used a simulation based IA. Actually I had to use a simulation because I took the variance of time period of a pendulum vs the angle and the problem is that for the first 4 readings I varied the angle by 10 degrees and the difference was only in the range of 0.02-0.05s so logically in a human experiment it doesn't really make sense to conclude anything from this as the reaction time is generally slow and even with multiple readings the error bars will surely cross the other reading and you won't have any explanation but the problem is that I think I may get a bit low marks because the markscheme talks about error a lot
There basically is no variation of period on angle until you get to larger amplitudes (larger angles.)
I appreciate this a lot! Please continue!
That's the plan!
alhamdulillah thank you brother praise allah for this video my teacher will'nt teach me this things
Glad I could help
Hi, can you please help me modify my topic?
How does temperature affect the electrical resistance and conductivity of a copper wire?
My teacher said that the topic is too straight forward so I should add something to it so that it looks like a research topic, not a normal lab investigation
Not too simple. The moderators adhere quite strictly to the rubric, and no marks are given for difficulty level.
Hey chris doner,awesome videooo, i have a question, what means error bars in the part interpretation?does it mean to make a graph of error bars on a curve in the same graph?
Whenever ever you make a measurement, there is an uncertainty. The error bars are visual representations of the sizes of those uncertainties. See my video on recording uncertainties.
For the communication part what do you exactly mean by subtitles
Writing words such as Introduction, Procedure etc. for the different sections of your report. You might even have subtitles for your subtitles. They help the reader know what to expect.
Is it OK if the graph is not a linear/continuous graph but a bar graph? because the student used a data-based to find which stars in the Leo constellation are in the same cluster and he plotted the graph with X-axis is the name of the stars and Y-axis is the distance between each star relative to earth. His research question is "Are the position of stars in the Leo constellation in the same cluster with its
neighboring stars?"
Absolutely. Every write-up is different. The student simply needs to chose an appropriate means to communicate his data.
can you upload a video marking and giving comments on a student IA
Good idea.
@@donerphysics waiting for your video😄
Thanks for reminding me. It is a good idea.
Would it be possible to ask for your feedback on my Physics IA?
Yes, but there is a fee. See www.donerphysics.com/
This video is really helpful. Thx a lot!
Glad it was helpful!
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