Heat | Full Chapter Revision under 30 mins

Heat | Full Chapter Revision under 30 mins | Class 7 Science

Рет қаралды 15,081

5 ай бұрын

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Пікірлер: 73

@aasthamathur5571 2 ай бұрын

We cannot measure human body temperature with laboratory thermometer as it has no kink or constriction which prevents the backflow of mercury in Clinical thermometer.

@Bhel2007 3 ай бұрын

We cannot use a laboratory thermometer to use a body temperature as the availability of Kenk whereas kenk does not let the mercury fall instantly which laboratory thermometers don’t have Because for measuring body temperature we need to wait for a minute and let not the mercury fall

@viskitty6830 28 күн бұрын

Minor advice it's kink not kenk

@reenayadav2434 5 ай бұрын

We can't measure our body temperature with laboratory thermometer because In laboratory thermometer kink is absent.

@ZaZa-mb1wd 22 күн бұрын

Because the Laborartory thermometer doesn't have a kink, so the temperature rapidly falls down after we take the thermometer out of our mouths.

@sidhantproend5784 2 ай бұрын

woolen clothes don't allow heat to get reflected and keep the heat trapped in the cloth.

@RahulMulimani-fk8yw 2 ай бұрын

Sr, i didn't understood "Convection in nature "😢

@MeshwarGagain 4 ай бұрын

Thankyou so much sir for the wonderfull explanation ❤

@entertainmentwithsanaahand7265 20 күн бұрын

people who are watching the video for understanding and notes making. 👇👇👇👇 btw GREAT video Sir!

@Designingwithnamarta7879 2 ай бұрын

7:15 -7:20 QUESTION:- WHY WE CANNOT USE LABORATORY Thermometer TO MESURE OUR BODY TEMPRATURE ANSWER:- A lab thermometer can't be used to measure body temperature as it does not have a kink. The kink, in a clinical thermometer, prevents mercury levels from falling on its own so that temperature can be read even when the thermometer is no longer in contact with our body.

@decodingyt6677 2 ай бұрын

ya it is right given three marks

@decodingyt6677 2 ай бұрын

nice

@user-dg2dt7nb3g 7 күн бұрын

but if the second person can check directly from his face

@rameshkansal 3 ай бұрын

Sir kya coolness bhi energy hai

@Nabihasajid-gh3kc 12 күн бұрын

we cannot measure human body temperature with laboratory thermometer because it has no kink

@diyajainclass4thb45 2 ай бұрын

Thanks for the video sir ❤❤🎉🎉

@priyankakaw 2 ай бұрын

Amazing video

@shekharkaushik2417 5 ай бұрын

❤❤❤❤❤

@StudyLover_12 5 ай бұрын

Thanks for this video ❤

@srushtibevinakatti1020 2 ай бұрын

Sir byjus is very good 😊😊😊😊❤

@Rajvir-rk4ef 2 ай бұрын

Thnx so much sir ❤❤

@Itz_me_anju_ 5 ай бұрын

❤❤❤😊

@user-zg5qx7is5m 3 ай бұрын

how do we measure the body temparature of animals

@user-yb2iq7xc9b 3 ай бұрын

We can't use a laboratory thermometer to check the temperature of a human body because it does not have kink and we won't be able to find our temperature.

@Sanjana_gowda161 5 ай бұрын

Sir do this type for class 8th class 8 students like 👍👇

@sandhyamiryala7650 24 күн бұрын

🏆🏆🏆🏆🏆🏆🏆

@srushtibevinakatti1020 2 ай бұрын

Sir how many metres sun is far

@rameshkansal 3 ай бұрын

There is no kink in laboratory thermometer

@OmSarap-eu6kv Ай бұрын

Hello 👋

@sakshamnagar9csn179 5 ай бұрын

Sir please cover ch - reproduction in plants and transportation

@RajatJuneja-pk7rj 4 ай бұрын

They are already covered by Aishwarya ma’am

@cookeryworld123 3 ай бұрын

Only legends are watching one day before exam at night🎉

@faisalmohdfzb Ай бұрын

😂

@Sakshi-oi5kv Ай бұрын

🤣🤣😂😂 I am gonna be die💀💀

@ruchigautam5319 17 күн бұрын

And I am one of that 😂😂

@ListenBible266 16 күн бұрын

Me😅😅😅😅

@maheswarisundaram1018 16 күн бұрын

Yea Im dead I haven't even touched my books in 1 week

@elinmary 5 ай бұрын

It doesn't contain kink

@afshinshaik 4 ай бұрын

c. Both statements are correct

@dangerAviYT 4 ай бұрын

ANS C ALL STAMENT ARE CORRECT

@EchoSphere7 23 күн бұрын

Kink

@DAKSHESH79 5 ай бұрын

1 ans (c) °celcius 2 ans. We cannot use a laboratory thermometer for measuring body temperature because a lab thermometer is very long and has a wide range of measurement (degrees from -ve to +ve) and is difficult to handle. 3 ans (C) Both the stament are correct

@LexiNoharaew 2 ай бұрын

I think we also have to add the kink part in answer 2, right?

@DAKSHESH79 5 ай бұрын

My question. but at night sea water will become very cold ❄️❄️ then how warm air from sea moves towards kand? Name = Dakshesh

@mandritadana4974 3 ай бұрын

Your question is only wrong

@DAKSHESH79 3 ай бұрын

@@mandritadana4974 you didnt understand the question

@namanahuja1703 5 ай бұрын

happy birthday sir ji

@kavidance2291 4 ай бұрын

Ans : option c

@TocaFree7 4 ай бұрын

I am actually watching it one day before my sci annual xam❤

@RajatJuneja-pk7rj 4 ай бұрын

Oh best of luck 🤞

@RajatJuneja-pk7rj 4 ай бұрын

Best of luck 🤞 , mine is on monday

@llamayessir1963 4 ай бұрын

@rasmirekha1163 24 күн бұрын

Aur saw😅

@tejassahu2372 12 күн бұрын

No I revise the chapter

@navneetissar-km3cd 4 ай бұрын

Sir

@ahmedpasha9037 5 ай бұрын

But it's not there for our final ❤exam

@PTvivek7380 4 ай бұрын

It is there for me

@NINAGAMINGYT 10 күн бұрын

BYJUS KA DOWN FALL 💀💀💀💀☠️☠️☠️

@sharmiladeb3228 2 ай бұрын

We cannot use laboratory thermometer to measure our body temperature because it doesn't have the kink So when we will take out the laboratory thermometer outside of our mouth after measuring the temparature will fall down rapidly Secondly the laboratory thermometer is very long so it is difficult to handle

@visheshyadav6701 4 ай бұрын

😢😢

@visheshyadav6701 4 ай бұрын

😢😢

@visheshyadav6701 4 ай бұрын

😢😢

@murlygovin5011 4 ай бұрын

sir speak in English

@radhikatanwar189 2 ай бұрын

Sir you give homework but why don't you give answer i think you also don't known

@rashmibhammar213 23 күн бұрын

So rude

@yatharthbora2630 8 күн бұрын

Yes

@nevedyatheprogamer7362 14 сағат бұрын

We cannot measure human body temperature with laboratory thermometer as it has no kink or constriction which prevents the backflow of mercury in Clinical thermometer.