he explained my homework with very detailed. my professor didn't do that. this is my first time taking physics

@bereketg5609

3 жыл бұрын

Me too bro/sis

@Tea-bs8vj

3 жыл бұрын

Same man

Thank you so much! That made it so much easier to understand!

Thanks! This gave me a better idea. I thought I was gonna end up using the formula as follows: (delta volume/v)=(delta length/length)+(delta width/width)+(delta height/height)

Thank you Mr Biezen

Just made physics easier.to understand..welldone.🙌🔥

@MichelvanBiezen

3 жыл бұрын

Glad to hear that

Thank you!

When writing the uncertainty 20, why did you choose the 20 instead of the 19?? Is it because +20 is bigger than -19? Or are we completely disregarding the signs and just saying 20 is bigger than 19. If the uncertainties were -20 and +19, would we still choose 20 as the uncertainty? Or would the uncertainty then be 19 because +19 is bigger than -20?

@jomarnacanan7844

10 ай бұрын

up

Thanks sir

that help me alot

How you know your uncertainity in legnth and width is o.5 ??? Is it similar that we do in schools using vernier calliper e.g smallest divion on scale / no of divisions ?????

@MichelvanBiezen

5 жыл бұрын

In order to determine the uncertainty, we have to consider a number of things. Objects expand and contract with changing temperature, the ability to line up the measuring device on both sides of the measurement, the zero setting of the instrument, the experience level of the person taking the measurement, the ability of the person to see the lines clearly, lighting conditions, angle of approach, just to name a few, and yes also the size of the scale used.

@mrellipse9896

5 жыл бұрын

@@MichelvanBiezen thanks sir

Great job!!!

@MichelvanBiezen

5 ай бұрын

Thank you. Glad you found it helpful.

thaaaaaaank you

Thank you very much sir

@MichelvanBiezen

2 жыл бұрын

Most welcome

many thanks

@MichelvanBiezen

3 жыл бұрын

Many Welcomes!!

is is the same as getting the perimeter with uncertainty?

@MichelvanBiezen

3 жыл бұрын

Yes, but off course with the perimeter you perform addition.

How do we convert the unit of measure of uncertainty from cm to m?

@MichelvanBiezen

Жыл бұрын

100 cm = 1 m 0.5 cm ( 1 m / 100 cm) = 0.005 m

@tweekgames2486

Жыл бұрын

@@MichelvanBiezen Ok thank you❤️

so what exaclty is the formula to get the uncertainty in area

@MichelvanBiezen

Жыл бұрын

You can use the method shown in the video, or you can add the % uncertainties. Convert from absolute uncertainty to % uncertainty and then add them. 10 +/- 2 = 10 +/- 20%

Very good 🙏🙏🙏🙏

@MichelvanBiezen

2 жыл бұрын

Glad you think so.

How do we calculate volume?

@MichelvanBiezen

2 жыл бұрын

In exactly the same way, just add another factor (Height)

*G O R L S*

sir thinks very much you are good lecture to physi s go on but do question about volume

@MichelvanBiezen

Жыл бұрын

The volume would be done exactly the same as the area, but with 3 factors instead of two

You have assumed the measurements are correleated, and all error is systemic. You've also assumed a square distrubution of uncertainty. Ideally, we would then find the equivalent uncertainties of in terms of the equivalent normal distribution to given sigma level of confidence. Independent, normal distributions of relative error would then add as orthogonal vectors, and the inner product would give us the combined error of area.

Hello Michel. Your video was really instructive as before. I always learn from you. I shall be grateful to you if I have your opinion about my video in the similar topic. Thank you.

@MichelvanBiezen

Жыл бұрын

Certainly. Send me the link and I'll take a look.

@kamyarphysicsschool5065

Жыл бұрын

@@MichelvanBiezen kzread.info/dash/bejne/pKydsNSpZrPVfZs.html Thank you Michel

@MichelvanBiezen

Жыл бұрын

Kamyar, Your video is very well made, easy to understand, and a good overview of how to deal with uncertainty calculations. When we first started, the views were few and it didn't appear that the channel was going to take off. But after a year of two, while publishing about 3 videos per day, the views began to increase. We also read the comments to try and understand what format was liked the most and we made adjustments to the length and presentation method accordingly. I believe that your videos show a lot of promise.

@kamyarphysicsschool5065

Жыл бұрын

@Michel van Biezen Many thanks Michel. I appreciate your comments. Please help me to improve my channel. You are a master and have much more experience.

@MichelvanBiezen

Жыл бұрын

The key is your viewers, not my input. As you begin to get feedback from the viewers as to what they like more and what they like less, you can make adjustments. As with any "product", it is the consumer that dictates. You have to think in terms of: "what are the viewers getting from my videos"? Is this what they want and is this what they are looking for? Your videos are good and of high quality.

1:32 *Why you wrote 355 instead of 355.25 please answer me *

@MichelvanBiezen

8 ай бұрын

It is sufficient to keep the significant figures.

i like you

please can you solve (IIT JEE) physics questions these are the hardest questions in physics found so far and my teachers are not able to solve it either please I will appreciate you if upload videos on IIT JEE physics numericals!!!!

@MichelvanBiezen

8 жыл бұрын

+Yash Pandey There are 65 physics playlists numbered from PHYSICS 1 to PHYSICS 65

How it comes 15

@MichelvanBiezen

4 жыл бұрын

We can also find the uncertainty in the area by adding the uncertainty to the length and the width and then multiplying. 14.5 cm + 0.5 cm = 15 cm

@neetaupyy1759

4 жыл бұрын

@@MichelvanBiezen thank u sir...now i understood

@neetaupyy1759

4 жыл бұрын

Sir which types of videos u upload..i mean its for competitions only...i am a student of class 11 bio...so i require physics and chem ..do u upload videos for 11 level physics or chemistry???

@MichelvanBiezen

4 жыл бұрын

Yes, we upload videos for all levels of chemistry and physics. (There are 7,500 videos on this channel) You can find them all from the home page.

but these are not the questions asked in IIT JEE exam paper ,you can find some of the exam papers over the internet and solve those. the questions in these paper( particularly of physics) have have a mixture of all the concepts of physics and are very very hard to understand!! so I want u to first see the exam paper of IIT JEE!!

@MichelvanBiezen

8 жыл бұрын

+Yash Pandey I am not familiar with the IIT JEE exams. If I can find examples I will take a look What does IIT JEE represent?

So the answer is measure it correctly(electronically) and avoid all the bullshit:)

Lemme guess😂 your professor sucks at explaining your assignment so you're looking for someone to explain it more clearly