What is Density? | Relative Density | Floatation

[@ManochaAcademy]

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[@Mr.SahadevPhysicsMagician]

I am a Physics Teacher, the way you explained is Excellent and very easy to understand. The activity also Superb and enjoyable in learning.

[@GeethikaM-cd1ue]

Plaz tell the answer😊😊

[@alphonceo3571]

I struggled with the subject to a point I fell out with the teacher and here I am, enjoyed his lesson 😀😀😀 Teaching is a calling

[@Othniel_Nuamah_Aidoo_Official]

Ships float on water due to the principle of buoyancy. When an object is placed in a fluid (like water), it displaces an amount of fluid equal to its own weight. If the weight of the water displaced is equal to or greater than the weight of the ship, the ship will float. This is achieved by designing ships to be less dense than water, making them buoyant. The shape of the hull also plays a crucial role in providing stability and preventing sinking.

[@nazeerkhan3303]

🎉 ocean water is salty which increases the density of water therefor ship float on it

[@Priyatam-mu8mj]

No

[@AyomiposiOdeyemi]

Yh that’s wrong

[@rajububanale7397]

A huge massive ship floats on water but same material ( Steel ) made up of iron sinks because at bottom of ship there is a huge empty space which is filled with air so it makes a huge ship to float on water instead of sinking .

[@abrahamvc8668]

Ya true man

[@mariama-gc7yf]

It is because the ship has a hollow space in the middle which cause the density of the ship to be less than the density of the river

[@yogitashende4406]

​@@mariama-gc7yf😮

[@chrixbenpalace]

Yes...air is added because it has a very low density which supports the ship. But then what happens to a canoe which does not have air chamber and does not sink. Volume and shape are the first import reason why ship floats.

[@abubakkarsiddique9372]

Wrong😅😂 because of byount force😂😂😂😂

[@raagmuz]

A massive steel ship floats in water based on the concept of Archimedes principle. The area of the steel ship in contact with water in much higher so the buoyancy of water is greater and that is why the massive steel ship floats instead of sinking like the steel nail.

[@ManochaAcademy]

Correct! You can also explain it in terms of density: since ship is hollow, average density of steel ship is less than water.

[@abiodunabdulaleem9078]

It floats on water cuz of Archimedes' knowledge.

[@ogonnaajagu6372]

​@@ManochaAcademyI don't understand sir, what do u mean by hollow

[@ShuBhSahoo]

@@ogonnaajagu6372 the base of the ship is hollow, you would understand if you have watched titanic, as since the hollow base the volume relatively increases than the mass hence to the formula of density = mass/ volume as volume increases density decreases than the sea water and it floats, however this is not much appropriate according to the higher studies, but it helps to understand density.

[@PreciousJumbo-w3m]

I'm so glad 😀you've finally released this topic. I've been eagerly waiting 🙏

[@manjularamesh5663]

Iam studying 9th standard. Ive understood all the concepts in mpc becaue of your videos sir. Glad to have a teacher like you.😊😊😊

[@nagappamallad9556]

It is because iron made ship displaces a weight of water equal to its own weight, it floats.This is principal of floatation

[@nagappamallad9556]

Yes absolutely correct

[@GodduRajukiran-yk2sg]

Sir please explain about some laws sir like 1)archimedes Principal. 2)Pascal's law 3)Snell's law 4)bernouill's Principal. Sir you have extraordinary talent of teaching

[@ayurgreen7279]

10:14 this process occurs based on buoyancy as the steel ship has a greater surface area the higher the buoyancy

[@ManochaAcademy]

Right! You can also explain it in terms of density: since ship is hollow, average density of steel ship is less than water.

[@darshgogia1448]

​@@ManochaAcademy❤

[@Developing_Minds]

Was waiting for this topic. Thank you so much! Manocha academy teaches the BEST! Really good teachers.

[@ManochaAcademy]

Thanks a ton 😊

[@niteshchaudhary7913]

😮​@@ManochaAcademy

[@SudaisAli-w2j]

Q: Why steel nail sink in water and honey and A steel large ship float in water? Answer: 1. Density: Steel nail: A small steel nail has a higher density than both water and honey. Density is defined as mass per unit volume (Density = mass/volume). Steel is denser than water, meaning that for its size, a steel nail has more mass compared to the amount of water it displaces. Since the nail cannot displace enough water or honey to support its weight, it sinks. Large steel ship: Although ships are made of steel, their overall density is much lower. This is because ships are designed with large, hollow compartments filled with air, which reduces their overall density compared to water. The average density of the entire ship (including the steel and the air inside it) is less than the density of water. As a result, the ship can displace enough water to support its weight and float. 2. Buoyancy: According to Archimedes' principle, an object will float if it displaces a volume of fluid (like water) equal to its own weight. The buoyant force pushing an object upward is equal to the weight of the fluid displaced. Nail: A steel nail displaces a very small volume of water or honey, which provides a buoyant force that is not enough to support the nail's weight. Ship: A large ship displaces a significant amount of water, and the upward buoyant force is enough to balance its weight, allowing it to float. SUMMARY: A steel nail sinks because it has a high density relative to the water or honey and does not displace enough fluid to float. A large steel ship floats because its overall density (including air-filled spaces) is less than that of water, and it displaces enough water to generate a buoyant force that supports its weight. "SIR IS THIS CORRECT"

[@dr.scratch3868]

The reason why ships float is because the relation of Density and Volume is opposite so if volume became bigger therefore the density will become lower and also that's why the ship bottom is almost empty to reduce mass and add more volume to reduce the density which allows it to float (correct me if I am wrong)

[@FatimaSanyang-up3ht]

You made me to understand every topic after watching your videos

[@SnigdhaMedha]

I am just a 4th class girl and u made me understand everything sir!!

[@FarhatOluyede]

I really enjoyed the lesson Thank youuu

[@EhtishamHaq-d5v]

Its basically due to large surface area, since volume is associated with the size and shape so when mass is divided with a large number it will give a small value resulting in less density. Larger surface area or more volume means less density

[@shyamasreedutta3311]

Hi sir!I have been waiting for this opportunity to understand floatation and density from you. I love your video explanation. Thanks to you I can understand all the concepts and clear my doubts in a better way. The answer for your question: Though the ship is large and has greater material, it displaces a large amount of water due to which it floats. That is called buoyancy. The upward force is greater due to greate water displaced. That's why it doesn't sink.

[@sriritwikshastry9603]

To answer :- How Does A Ship float in water when a steel nail sinks? Answer :- A ship floats on water because it is designed to displace a large amount of water, creating buoyant force greater than its weight. It also has a "LARGER SURFACE AREA". That is why it Floats.. A steel nail sinks because it is denser than water, so the buoyant force is not enough to support its weight.

[@ManochaAcademy]

Very good! Correct :) In terms of density we can say that since the ship is hollow, average density of ship is less than density of water.

[@TrizaMaina-my9kb]

Watching from America.thank❤❤❤😊😊😊

[@arnab6509]

Because the steel Ships Surface Area is more. More the surface area of the object (i.e, the steel ship).More the buoyant force experienced by the Ship. So, more the Surface area of the object = more the Buoyant force of an object..

[@HimeshKumar-b9c]

I am from pakistan and I really enjoying the way in which u teach. Thanks a lot. 😊

[@SudeepAdhikari0611]

Much awaited sir❤😊

[@ManochaAcademy]

Thanks 😊

[@mahigeek]

The volume of the ship where touches the water is extremely high. If we take the exact same amount of water which is equal to the ship's sinking volume, it should be weight way more than the ship. That's why the ship floats on water. According to Archemedis :)

[@anmol717]

water exert a bouyant force on submerged object.

[@RISING416]

Because the surface area of boat are increase then it flow in water and we know that density is also depend on surface area of objects...

[@sindhuc9531]

Explanation was very interesting. Well explained using many simple examples. Thank you

[@FazilVijay-et9md]

Sir put that steel ship topic, and i amazed on seeing your teaching

[@hamathsaleem3046]

Though the Density of plastic material used in that orange ball is 0.98 g/cubic cm, it doesn't sink in the kerosene because the average density of orange ball is reduced by filling air with it. Same concept is applied in ship also Though materials used to make ship has higher density than water, average density of ship is reduced by filling the air within it. At last, density of ship becomes less than 1 g/cubic cm and so it floats in water.

[@ManochaAcademy]

Superbly explained! Correct answer :)

[@Saatvika_S]

since ship is hollow, average density of steel ship is less than water.

[@dineshmishra7743]

weight of water displaced by the submerged part of the ship is very high in this case thus, the upthrust is high resulting in flotation of ship)

[@tinysen]

The skip floats as the weight of the ship by its unit volume is lesser than that of water so even if an elefante is kept on top (if the ships material can take the weight) the ship will still float as the density will still remain lighter than 1g/cm^3

[@Inexhaustible01]

I studied a whole chapter but didn't get the actual and practical meaning of the density but now by the grace of yours i understood each and everything thankyou so much sir ❤️🙌

[@abdulrahmandhahir7791]

Many thanks -- really appreciate how to make everything easy to learn

[@Chinmayeprabha]

Thank you sir. If my school teachers were this good I would not hate studying this much. You are the best teacher sir. And also please try to make courses on class 11

[@AbhisekMondal-x1d]

You are a great teacher

[@maryamsesay2324]

This is because ships are hollow and contain a great deal of air, and thus, their average density is less than that of water

[@ihavejiminslostjams9810]

Ships float in water due to their hollow built in structure which is naturally built in a way like that. Iron needles are more compact and it's density is 7.8 g/cm3 the density of iron needle is more than 1 g/cm3, it sinks in water but an iron ship's density is way more less than 1 gm/cm3 hence it floats on water.

[@rameshkenchappadodamanidod9008]

Density is inversely proportional to the volume. Though ship is heavier but it's volume is more so it's density decreases hence floats on water

[@anoopmasaxena3760]

Sir u are the best teacher who's I understand very well sir I am the ICSE student Sir only i want that u explain reflection of light and current electricity and magnetism these four chapters of class 9 icse of concise selina ICSE physics book

[@ravishanker2663]

Thanks a lot of with gratitude to upload such interesting video 🙏🙏🇮🇳Jai Hind

[@chiragkaria8768]

The ship made of steel floats on water whereas an steel pin sinks in water...the reason is that when an ship is made, it is made with tiny pores which are then occupied by the air molecules and hence the ship becomes lighter and floats on water whereas an steel nail is not made up with holes and hence it is more heavier than water and the end it sinks in water.. Also the flotation of ships work on the principle of buoyant force "𝘞𝘩𝘦𝘯 𝘢𝘯 𝘰𝘣𝘫𝘦𝘤𝘵 𝘪𝘴 𝘱𝘢𝘳𝘵𝘪𝘢𝘭𝘭𝘺 𝘰𝘳 𝘵𝘰𝘵𝘢𝘭𝘭𝘺 𝘴𝘶𝘣𝘮𝘦𝘳𝘨𝘦𝘥 𝘪𝘯 𝘸𝘢𝘵𝘦𝘳 𝘢𝘯𝘥 𝘪𝘵 𝘤𝘰𝘮𝘦𝘴 𝘰𝘯 𝘵𝘩𝘦 𝘴𝘶𝘳𝘧𝘢𝘤𝘦 𝘰𝘧 𝘸𝘢𝘵𝘦𝘳 𝘸𝘪𝘵𝘩 𝘢𝘯 𝘶𝘱𝘵𝘩𝘳𝘶𝘴𝘵, 𝘪𝘴 𝘬𝘯𝘰𝘸𝘯 𝘢𝘴 𝘉𝘜𝘖𝘠𝘈𝘕𝘛 𝘍𝘖𝘙𝘊𝘌" I hope this explanation is correct

[@shellzmalhotra709]

This is the reason I watch your videos even if its not in syllabus

[@viswa25]

objects only sinks if it weighs less than the water it displaces. (Archimedes Principle)

[@banavatuheeryanaik4698]

excellent sir

[@RockySinghaniyaRocky]

3:16-23pm6/1/24

[@teachermchollo6639]

Hellow sir.. it's because of its volume, the large the volume the lower it's density and vice versa

[@davisnoah347]

For the bottle cap to float in kerosene it had to be filled with kerosene and would be floating otherwise. You should have filled it with water too to see if once filled it would still float above the water.

[@Boyle022]

A ship floats on water because it displaces an amount of water equal to its own weight. This is based on Archimedes' principle, which states that an object immersed in a fluid is buoyed up by a force equal to the weight of the fluid it displaces. The ship's density is lower than that of water, allowing it to stay afloat.

[@thotamamatha3273]

Because ship displaces more water than steel nail so buoyant force will be more as compared to nail of ship

[@sreyashi7617]

A steel nail sinks while a ship floats in water because the ship is hollow and the empty space in it contains air which makes its volume large and average density less than that of water.

[@akhileshwarbhatt743]

I am process Chemist in a sugar plant from 20 years, during processing of juice,clear juice and cane juice mud separated due to density difference in Comercial scale...... This is just for me as a refresher course....

[@alphonceo3571]

My village people are cane growers. Please do and share such experiment using cane juice,as its familiar and relatable to the learners locally.This will help unlock the subject, from known aspect to the unknown

[@Burairhaider123]

Thank you so much tomorrow is my paper

[@ManochaAcademy]

All the best

[@raagmuz]

Marvellous sir

[@ManochaAcademy]

Thank you!

[@8a04-gokul.r.n6]

Super sir

[@ManochaAcademy]

Thank you 😊

[@jagadeeshvarada786]

Sir I think relative density and specific gravity are not equal... please check and confirm

[@chrixbenpalace]

To make ship float..we deceive water density into seeing the ship as a lower density material. We do this by flattening the same steel material and giving it a desired shape thus increasing its volume. If Mass of ship is constant and we increase its volume, we end up reducing its density thus deceiving Mr water into accepting Mr ship as a lower density brother. Mr ship will then float.

[@Jeeshri]

Iron nail sinks but a huge ship does not sink because Ship has hollow and empty spacesin which air is filled due to which the density od ship becomes < density of water

[@rajeshkumar-tu6op]

because sir the water displaced by the steel ship is larger than its mass so,a steel ship floats on water.

[@akindurodemidavid]

It's because of the shape and structure of the ship that makes it able to float on the sea, am I right sir

[@Kushal-rv6vk]

This is because the ship is hollow and it’s empty space contains air so it makes the average density of ship less than of water

[@AeshiSaid-zm4rq]

Ship float in water because the density of ship is less than the density of water.

[@boorlusivaram9521]

ఎక్సలెంట్ సార్ 👌🏻👏🏻👏🏻🙏🏻

[@TomzyDarbo]

It is because of the hallow space at the bottom of the ship

[@vanisri8307]

Hollow space filled with air air is lighter than water hence it floats

[@AnasuryaPattem]

The ship will not sink because the sea contains salt with in it .since it's density is more

[@kanakadurgapamu]

The ship have upward buyoncy force so the ship will float

[@margarethmlay9778]

Bcoz it has a space below the ship and that space is filled up with air and air always floats in water

[@virendrasingh8825]

the density of rock is more than water so how it bounced on water

[@ABOUTMATHEMATICSANDSCIENCE]

S the ship can float on the surface water because density off water is greater then massive ship

[@sci663]

Sir why water is taken as relative density?

[@NAWABWAQAR-uc1km]

The answer is that the ship has a much bigger surface area than the nail. That's why it floats on water. 👍🏻

[@Burairhaider123]

If the more water would be so it is 1g and ship would be high we cant meadure the water but it have more density from ship

[@titangamer2821]

Because it will sink half in the liquI'd by following Archimedes Principle

[@hammerplayz7593]

In ship very much air is there and air is much lighter than water that's why it floats .

[@sriritwikshastry9603]

These videos are just getting better and exciting everytime! Loved it! :) The Thumbnail as always is just amazing :) Best Part is the Bloopers!!

[@ManochaAcademy]

Glad you like them!

[@HassanPloice-cf5ui]

Sir I am from Kashmir

[@ManochaAcademy]

Thanks for watching!

[@AnithaBandaru-n5r]

The ship does not sink because it is depends upon the shape

[@kumariastha8535]

Helpful 😃 thanks

[@chandu8996]

Sir i am from Karnataka, India

[@shellzmalhotra709]

awesome video😃😃😃😃😃😃

[@ManochaAcademy]

Thanks 😊

[@Gamerboy-oi9rg]

Thankyou sir

[@kamalhodroj2979]

Because the water has more density as it is in a larger amount

[@KelvinKipchirchir-dc5rv]

What is the meaning of CGs?

[@muhammadzareef3186]

An object floats in water when it displaces the volume of water equal to object

[@chandu8996]

The ship float at water because of the ship have empty space at the bottom of ship and at that place is have low density and that can hold tons of weight so the ship float at water 🌊🌊

[@Charliemr]

Good job

[@chanmyaelwin7939]

Cause of pressure on the water

[@venkatasivasaikirankumarBaliva]

here steel density is less than water it has more mass

[@Aliabou-zg9xp]

Density of an object less than that of water

[@KelvinKipchirchir-dc5rv]

What does the CGs mean?

[@DMBabu-iv3qg]

The average density of ship of less than the water

[@shaguftayasmeen7772]

Sir I'm having a doubt in SI unit

[@JecintaAcquah]

Steel ship float in water because the ship is hollow and shaped in a bowl

[@CorneliusDan]

The air inside the ship is less dense than water 💦 . That's what cause the floating.

[@Gamerz-mh1cr]

A huge massive ship floats on water because.... it is hollow from inside.... thus contains air.... & as we know Air density is less than that of water.....

[@KirpaSoni-s5y]

A ship floats on water because of surface tension

[@skhidayathulla8175]

A ship floats on water because of higher density than water so ship is floating

[@jensetters_settings]

@@skhidayathulla8175a substance with higher density than water sinks my friend

[@frankcypren7973]

Flotation principal make it possible

[@MAMUDAABUBAKAR-rc3gx]

Because the massive ship displaced it own volume

[@kanakadurgapamu]

The ship will donot float on water because of the Archimedes principal

[@KanjorJohn]

There's a mistake You said what's the relative density of kerosene and honey but solved for the relative density of kerosene and water