Linear Expansion of Solids, Volume Contraction of Liquids, Thermal Physics Problems
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- Опубликовано: 16 ноя 2024
- This physics video tutorial explains the concept of thermal expansion such as the linear expansion of solids such as metals and the volume contraction of liquids like water. It discusses the relationship between the coefficient of linear expansion and the coefficient of volume expansion. It also provides an equation to find the expansion of area due to a change in temperature and not just length and volume. This video contains plenty of examples, formulas / equations, and practice problems.
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Everytime I hear his voice, I know he's about to save me... Thank you for sharing your knowledge and wisdom 🙏
Hehe
No be easy o
You saved me from the lecture that I didn't really understand... This man is the saviour fr
great video but new area was still in cm2 not m2. test in 3 hrs you are a life saver
This man just saved me 9 hours of continous learning, tysm.
Youve been helping highschoolers for almost 5 years already, keep upppp
i always watch your videos the night before my exams.
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There very well done aren't they! : )
Same thing I do here
You explain this like my physics teacher but more in-depth. Thank you!
At 9:35 it should be cm^2 not m^2 for the new area
Oh my same hahaha i watched it many times wondering why it became m^2
@@jessicasudio172 must be a mistake
glad this comment help, been dying to know why it became m
Very well really appreciative as a student I am saying that you made it very easy for us to understand it.
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Like normal, you should honesty get the money that my prof is getting because you explain things sooo much better.
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who else is watching this hours before thier exam? hahahaha
There many hour before exam but we choose read a book 1 hour before exam Why?
Me ;-;
So true
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Great and Powerful OC Chem Tutor:
Please make a video on why in the hell the scales of Celsius and Kelvin are equal when it comes to coefficient of linear expension....
Who else is watching in 2024 😂😂😂😂
Me
Me
Me, its a big help in my studies.
why r u making noise in class
jamb is in two days so nervous😅😅😅😅
thanks man tomorrow is an important test
I'm going to thank you after I graduate 💖
This is so good Because it was interesting any one who can watch it
thank you so much for this! it really helped me for my finals
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Im at the moment watching this while my professor is discussing this topic 😅
Hi, can I ask what's the formula in getting the original volume when dealing with liquids?
2:15 hrs for exam this is a great help 👍
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English isn't my first language but this teacher always explain like its the easiest thing in this entire world. Thank you so much i really appreciate it🤍
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In the "area" question you calculated the differences of lenght and width separately and multiplied the new lenght and width to get the expanded area, and in the volume question you calculated only the difference in the volume. Which way is correct?
It does not give out the same answer unless you multiply the ◇V by 3 for volume (or multiply by 2 for area)
You made physics interesting
Why is there a -1 exponent on the first problem in its coefficient of linear expansion?
it's for 1/C.
How many of you just want to do the calculations but the pen is not nearby bcz you are watching it on your 🛌
Real
Thank you 🙏 I'm pretty sure these videos of urs helped out many graduated students, and they are still helping us even today although they were recorded years ago. Very appreciated 🙏🤍
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@ 21:30 The Coefficient of volume expansion should be multiplied by 3 if im not mistaken
Why?
Excatly
sir please make more detail vedieo on thermal expansion
00:02 Thermal expansion causes solids to expand when heated and contract when cooled.
02:53 Linear expansion of solids
05:31 Linear expansion of solids and volume contraction of liquids
08:36 Calculation of new area and change in area due to thermal expansion
11:50 Linear expansion and volume contraction formula
14:50 Calculating change in area using linear expansion and volume contraction
17:15 Volume expansion occurs when temperature increases
20:20 Coefficient of volume expansion and volume calculation
22:48 Calculation of volume change using coefficient and temperature change.
25:09 The change in volume is V0 times (1 + alpha delta t) to the third power minus one.
27:40 Derivation of volume expansion equation for solids
Thanks!1!1!
@@UltraFlamingRed 🤗
My saviour 👌
I understand lessons here at youtube than in face-to-face classes.
When he said "heres a new formula to help deal with-" i was like "no way!" Im gonna try do simple shit before the fancy shit
Anyways great vid, helped alot.
😂😂😂 same here I didn't even concentrate on the 2nd method. . it's complicated.
You are a real magic thank you man you've helped me alot
Nice one ❤️
In the first question isn't the change in temperature +75 because they said it was increased by 75 hence final temperature would be 95
it says (increased to) not (increased by)
Why is that aswer different when you convert the temperature to Kelvin before starting to calculate
Shouldn't you be using the units intended for the formula?
Ur supposed to change each value into Kelvin then subtract them
a steel rail of length 20 m are laid at the temperature of 20°c an explanation gap 6mm is left between adjacent rail what resulting expansion gap in millimeter when the temperature of the rails is (a) 35°c (b) -5°c take the Coffeicent linear expansion as 12*10^-6
After this I'm going to the next video heat fusion and thermodynamics 😵
menh this is my lecturer hahaha .Thanks much
ur video is great sir...plz can u tell me which software u r using...
Who else is watching because didn't understand in class😢😅
Volumetric expansion of the cyclinder
An iron ring 1.20 m diameter is to be put on a wooden cart wheel. The diameter of this wheel is 1.0 cm greater than that of the ring. The temperature of the ring that must be raised before it slips on the wooden wheel is (coefficient of linear expansion of iron is 12×10−6/oC)?
I need your help
When calculating change in area and change in volume we were taught to multiply the Coefficient values by 2 for area and 3 for volume....is this accurate?
Yes, it's gamma(volume) = 3(alpha) and in case of water, the coefficient is always 3alpha because length and breadth of water can even be the room in which it's put. Thus, it's gamma (which is equal to three times alpha)
Is this suitable for grade 11th thermodynamics?
hi do you do graph analysis for FS Physics, am currently getting 78% , i want to get around 85%, i would really use this types of videos for FS Physics
What if there is no space provided for the expansion and the concrete buckle up,how to calculate the height created by the buckling
can i ask ,,why he didn't convert ml to m^3
sir where can i found reaction on the alcohal phenol and ether
Who else is watching cause they didn't understand in class 🤣🤣🤣
Hahah it's me😂
Me
What if there's no given coefficient of linear expansion?
Hey your final area is wrong. The unit should be in cm²
2024 here we gaurr
sir I thought you will change the temperature to the standard unit use to solve which is Kelvin
or am I lost
9:28 is cm^2
your square meter should suppose to be square centimeter not m^2
Im writing tomorrow at 14:30.
Quick question...is the temperature here is Atmospheric Temperature?
It's the temperature of the object which is typically atmospheric temperature unless you went out of your way to heat/cool the object.
@@joshuatanase3718 thank you...😊
You're a godsend
Great 👍
Can i change degres to kelvins
why did not you take 1/C in example 2 like in example 1???
Thank you
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What if you only heat up half the plate too
you helped a lot!
Thank you so much
Nice
You the best!
Yes you think what bro
sir you are using as alpha into initial length into change in temparature but not adding 1?in our school it is taught as new length[1+alpha into change in temparature]but here you are not adding 1 can i know the reason please
Y should u add 1
The new length will be the original length +change in length
Thanks
What if the coefficient of volume expansion is not given?
It wont happen😂xd
thanks 🙏🏼.
how did you get the answer at 4:15 ?
thank youu
From 8cm * 12cm how can I know which one is Area? or w?
Yes and the width is the shorter one
12+0.2784 is not 12.02784 it is 12.2784 the new area will be at 98. something,
at 21:31 forgot to multiply the coefficient by 3
But it says in the question volume coefficent so I don't think we have to
is 1/k = 1/c
How is the original length 12cm???????? Helpp
THANK YOU!!!!