Ma'am needles don't float oon water needles dig into water because needles have large density from water needles made from iron not from woods or some thigs else🙄
Welldone ma'm mani bahot youtub par lacture dika leken jab tari wali deka bahot achi tarakh lacture diti hai to mani 2chapter deki ap wali our abi bi ap ke lacture sonta ho tom ne muj par bahot ihsan kia
Plz chezoon ko sai s define kre taki hm behter samaj saken Air light hota h lekin kiun hota h? Needle to flioat ni krta? Molecule combination of atom h to conduction m b atom hota h to unko b molecules keh sakte h?
Air iss lye light hota h kyu k wo gas hai or gas ke density sab se kaam hoti h yes you are right, needle doesnt float on water. Yes you can say but since atoms are so densely packed k aap uss ko atom b keh sakty ho r molecule bhi
Yes bro you are true. Needle doesn't float but needle sinks it is because the weight of needle is greater than beyond force or upthrust force so the needle sinks.
Needle will sink because of Archimedes principle and if the body have round shape from inside like boats then it will probably float on the surface of water
Bro needles not float but u have to make ur sentence better its not (needle float in water) it is (needles float on water) u have to upgrade your grammer 😕🤔
maam we know that conduction does not occur in liquids because their molecules are spaced apart ........................but we also know that in water h2o molecules are strongly attached by hydrogen bonding then why its molecules are spaced apart/////,,,,,,,,,,,,,,,,,,,,,,,,,anyone have this answer ...plz solve my problem......
Don't relate physics with chemistry they are different subjects. and if we talk about it then h2o is a molecule and conduction not only occur by vibrating atoms but also by free electrons and water h2o dont have free eleectrons. Thats why conduction doesnt occur in water. Now if we talk about their distance then, hydrogen bonding is present between h2o i mean that 2h and 1o have high hydrogen bonding with other 2h and 1o which make it water i hope you got it
Why the path of transfer of heat through molecules cannot be seen in our homes with electric heaters like the previous experiment of convection current?? Although the process is same in both phenomena....
Mam agar 2 object hmara pas h let suppose ik stone h dosra wood ,or dono ka weight b same h ,jab ki wood floating he krttta rahay ga but stone sink krtaa ,ap na kaha needle ka weight kam thaa is lia floating krahai stone ka zaida tha tu wo sink kr gaya , rehnomaie farmayaa ga Mama 🙏
because in convection heat transfer through molecules of liquid and gases in which particles are spaced apart from each other and so thats why convection occurs in liquid and gases but according to your question convection does not occur in solid due to presence of atoms and free electron which are closely attached with each other
You r one of the best teacher Mam Vaneeza but plz try to reduce the time u take explaining a single topic
changa lecture ditta tusi samajh aa gy sanu.tnks
1:01 its not called "conduction" is called *convection* but you are *birilliant* teacher🌺
Nice mam...I learned more things in ur lecture..,😍
Appreciate your precious Lecture
GOD bless you Mam.Thanks
Thanks teacher your all lecture is very important is those students
Nice teaching method
Mam you are so intelligent and I got a lot of knowledge from you.
Thankyou so much.....
Thank you very much 🥰🥰🥰🥰🥰
Ma'am needles don't float oon water needles dig into water because needles have large density from water needles made from iron not from woods or some thigs else🙄
Yeah you are right
Ma'am ko shayad pata hi nahi ha k needle hoti kya ha 😂🤣
@@user6776-c2k jis say ilm hasil krte hain hain uski izzat karte
You don't even know how to respect teachers
All boys are the same they never change
Brilliant Job
Teaching is an Art
U r so intelligent mam😍
Well your emoji say what u didn't write
@@ShubhamKumar-pu3ik Right
@@ShubhamKumar-pu3ik 🤣🤣😁 yup buddy
Theek hai ... Theek hai .... theek hai😂😂
Nice lecture mam .... V informative👏
3:40 its not called a balloon, it is called a parachute which uses the principles of convention to fly high and move upwards.
Book khol KR deakho 😂
@@hunzasworld5603 same bhai🤣🤣🤣🤣
😂
Mam I have no words that I can use for your lecture.your method of teaching is very nice😊.
Welldone ma'm mani bahot youtub par lacture dika leken jab tari wali deka bahot achi tarakh lacture diti hai to mani 2chapter deki ap wali our abi bi ap ke lacture sonta ho tom ne muj par bahot ihsan kia
Excellent lecture 👍
Allah ap ko bht kamyabi da
bht axhi physics smjati h
Thanks to clear my concepts .
Mam ur teaching way is so nice........ 😊
Mam needle can't float it sinks in water....
good teacher i read in class 7 but you are exellent.......
Read nhi beta study hota he😂
7 class mei hai na abhi bhi yehi inko pta nhi what is read and what is study
Mam convection of heat may bulk motion Apne explain nahe kiya
Good 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍
Thanks man😘
Good to watch
Nice teaching method
Thanks me apki lecture sun k class ko parhati hn thanks sis
Thnk u mam
Plz chezoon ko sai s define kre taki hm behter samaj saken
Air light hota h lekin kiun hota h?
Needle to flioat ni krta?
Molecule combination of atom h to conduction m b atom hota h to unko b molecules keh sakte h?
Air iss lye light hota h kyu k wo gas hai or gas ke density sab se kaam hoti h
yes you are right, needle doesnt float on water.
Yes you can say but since atoms are so densely packed k aap uss ko atom b keh sakty ho r molecule bhi
ur teaching style is really cooooool
#5.45 (needle float) ?.Needle has higher density than water it can't float , it sinks in water
Yes bro you are true.
Needle doesn't float but needle sinks it is because the weight of needle is greater than beyond force or upthrust force so the needle sinks.
Needle will sink
Needle will sink because of Archimedes principle and if the body have round shape from inside like boats then it will probably float on the surface of water
Than.......k you so much ma'm I always remember you in our payer
Needle doesn't floats on water it's density is more than water
Very good lecture nice i like it
mam needle is hgher denser then water it is not float in water; it sink in water otherwise you teach very well
Bro needles not float but u have to make ur sentence better its not (needle float in water) it is (needles float on water) u have to upgrade your grammer 😕🤔
kash ap first year second year ki b ap he video bnati
Mam l learned your all lectures
It's excellent
needle didn't float ....piece of paper can float easily
good lectures 👍
Well done 👍👌
Why the cold molecules come down
Miss why don't you answer any question???? if you are making a channel then it's your responsibility to answer our questions Hope you didn't mind
Thanks mam you are really helping me
ap bht pyra smjhti hain
Thanku Soo much mam
👍👍👍👍👏👏👏
Kis nay kaha needle water nhe dopti...? Needle ki density water say ziyada hn..needle water kay nichay jayi ga...
I am also thinking about it
Ma'am ko shayad pata nahi k needle *soi* ko kehte hn 😂🤣
Relax its just as an example
Needle b doob jati hy mam corect it plz
Balloon main gas ka molecules ak dosray sa door hon ga or fluids main vibration ki jaga translation hoti ha
Thanks;-)
Mem your voice is soo cute like miss nazia
maam we know that conduction does not occur in liquids because their molecules are spaced apart ........................but we also know that in water h2o molecules are strongly attached by hydrogen bonding then why its molecules are spaced apart/////,,,,,,,,,,,,,,,,,,,,,,,,,anyone have this answer ...plz solve my problem......
In chemistry h20 the water molecules are In. Solid state
Don't relate physics with chemistry they are different subjects. and if we talk about it then h2o is a molecule and conduction not only occur by vibrating atoms but also by free electrons and water h2o dont have free eleectrons. Thats why conduction doesnt occur in water. Now if we talk about their distance then, hydrogen bonding is present between h2o i mean that 2h and 1o have high hydrogen bonding with other 2h and 1o which make it water i hope you got it
*بھت خوب ہے لیکچر*
Why the path of transfer of heat through molecules cannot be seen in our homes with electric heaters like the previous experiment of convection current??
Although the process is same in both phenomena....
ILU MAM
mam solids me b kya ase ho hota ha garam cheez less denser hoti ha
thank you so much
What is actual movement of molecules
Thanks for teaching me
Mam agar 2 object hmara pas h let suppose ik stone h dosra wood ,or dono ka weight b same h ,jab ki wood floating he krttta rahay ga but stone sink krtaa ,ap na kaha needle ka weight kam thaa is lia floating krahai stone ka zaida tha tu wo sink kr gaya , rehnomaie farmayaa ga Mama 🙏
Due to difference in density
Thank mam😘
Thank you mam
Good
Archimedes principal says that a niddel will also goes down to the water
Yes i though lt the same thing but she is just giving an example
Maam plz aim high schol ap vasit kary plz maam you are so intelligent
Ma'am gas molecule vibration nahi kary
plz jo koi b glti nikaly vo phir eesay theek kr k explain b kry reason k sath plz plz
Thank You
*Well done*
❤️😍
grate
Maam don't on water?🤔🤔🤔
Kei heat ke waj say densities solid bady may kum hoti hi
Excellent
Thanks mam
thank you mam but needle...............................
please reduce thek hai thek hai
Thik h
Thik h
Thik h
.......
😶
Ni thik h madm...
Needle float ni krti
R parachute m heat transfer kesy ho rhi...air particles m tu gap hy as u say
To wo force lagate Hain na
But,majahy ek topic samajna hai air vo consequences of thermal expansion hai . Jo k clearly samajna
Hai.
What is needle
Safety pin 🧷
you are nice maam
Ballon ki example nhi samjh aaye
thank u
Mam gases may vibration nhi hoti bulkeh molecules move krte hain 4:55
Hahaha bharwe
Viberation=molecule's movement
Yes
Where frm uh Mam
So Muslim ho ya non Muslim
Definition ma movement nii lakha
@@aneesajaleel9093 ap likh lo
Convection ki koi khaas definition nhin hai kia
😊
maam you are looking gorgeous in this hijab
Tharki admi parhahi pr tawajoo de
@@faizanarif4688 😂sahi kaha
@@faizanarif4688 Han bro
Thanks
@@faizanarif4688 gajab ki besti hai 🤟🏻👍🏻
🙂
😋🤓
But needle doesn't flow on water because it's density is high
Example hai bhai
Sorry mam but needle does not float
why heat always flows from higher to lower pressure anyone have this answer
@@maheenmalik4963 thats the question but why ?
To attain equillibrium state
kia theek hai theek hai lagay hua hai ..me lecture sunu ya theek hai theek hai
Both
Thik hai
NICW
rate
Theek he bohet bola gya he
Mama in soild why convection not occur
because in convection heat transfer through molecules of liquid and gases in which particles are spaced apart from each other and so thats why convection occurs in liquid and gases but according to your question convection does not occur in solid due to presence of atoms and free electron which are closely attached with each other
I study in seven class you study me