-
What is Density? | Gravitation | Physics | Don't Memorise
Understanding the concept of Density is very important in order to understand Physics.
Watch this video to fully grasp the idea of density.
To get access to the entire course based on Gravitation, enrol here: https://bit.ly/Gravitation_G9
In this video, we will learn:
0:00 Introduction
0:52 Density
1:14 Density Formula
1:24 Unit of Density
1:32 Why Wood Floats on Water?
To watch more Physics videos, click here: https://bit.ly/PhysicsVideos_DMYT
Don’t Memorise brings learning to life through its captivating educational videos. To Know More, visit https://DontMemorise.com
New videos every week. To stay updated, subscribe to our YouTube channel: http://bit.ly/DontMemoriseYouTube
Register on our website to gain access to all videos and quizzes:
http://bit.ly/DontMemoriseRegister
Joi...
published: 20 Jul 2017
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Density - Why does oil float on water? | #aumsum #kids #science #education #children
Topic: Density
Why does oil float on water?
Hey.
Did you realize that a large log of wood floated on water but a comparatively smaller piece of rock sank?
How is this even possible?
This is possible because of density.
It is the measure of the mass of an object per unit volume.
In the first case, the log of wood floats on water because it has less density than water.
This means that the amount of mass present in unit volume of wood is less than the amount of mass present in unit volume of water.
However, in the second case, the piece of rock sinks because it has more density than water.
This means that the amount of mass present in unit volume of rock is more than the amount of mass present in unit volume of water.
Do you know why the helium filled balloon is rising up in the air?
This i...
published: 20 Feb 2017
-
What is Density?
What is density? It has to do with Mass and Volume.
Wait... what is Mass? What is Volume?
Don't worry, all those questions will be answered as Phil from Science Max explains one of the basic science concepts. Kids to adults and everyone in between (...teenagers, I guess?) will now understand density. Density=Mass/Volume
This video is one of the FUNdamentals of science. A handpicked group of concepts I firmly believe every human being on the planet should know. And what better time to learn than when you are a kid!? Here's an experiment that has to do with density:
https://www.youtube.com/watch?v=h9WraQWLRx0
Please consider supporting me on Patreon, because that's why you're reading the comments, right? For this link? Well, here it is:
https://www.patreon.com/philmccordic
You ...
published: 07 Oct 2020
-
Density Practice Problems
To see all my Chemistry videos, check out
http://socratic.org/chemistry
We'll practice solving density example problems. We'll look at how to use the density number like a conversion factor, to solve for mass or volume. Watch this video after the density introduction or before the more complicated video on density exercises that has unit conversion.
published: 25 Aug 2012
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GCSE Science Revision Physics "Density"
Find my revision workbooks here: https://www.freesciencelessons.co.uk/workbooks
In this video, we look at Density. First we explore the differences in the arrangement of particles between solids, liquids and gases and then we look at how to calculate density. Finally, we use the particle model that we saw at the start to explain the differences in density between solids, liquids and gases.
Image credits: https://creativecommons.org/licenses/by/2.0/uk/
Student studying: Gnarlycraig
https://commons.wikimedia.org/wiki/File:Studying.jpg
Brick Cropped from original image
Andrewlister
https://commons.wikimedia.org/wiki/File:Brick.jpg
Expanded polystyrene block Motokichirou
https://commons.wikimedia.org/wiki/File:Пенопласт.jpg
Microscopic image of thermocol block
Rit Rajarshi
https://comm...
published: 31 Jul 2017
-
Density Practice Problems
This chemistry video tutorial explains how to solve density problems. It provides all of the formulas and equations you need such as finding the volume of a sphere or the volume of a rectangular prism. It even covers dimensional analysis and unit conversion density problems where you may have to convert g/mL to Kg/m^3. This video contains plenty of examples and practice problems including water displacement method density problems.
New Chemistry Video Playlist:
https://www.youtube.com/watch?v=bka20Q9TN6M&t;=25s&list;=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index;=1
Access to Premium Videos:
https://www.patreon.com/MathScienceTutor
published: 05 Aug 2017
-
Density Ball
Get our favorite science gear delivered to your door: http://www.curiositybox.com
https://twitter.com/tweetsauce
https://www.instagram.com/electricpants/
Vsauce PO Box: PO Box 33168
L.A. CA 90033
***CREDITS***
Hosted by
Michael Stevens
Edited by
Hannah Canetti and Michael Stevens
(https://www.instagram.com/hannaynaycanaynay)
VFX by
Eric Langlay
(http://youtube.com/ericlanglay)
Music by Jake Chudnow
(http://youtube.com/jakechudnow)
***VSAUCE LINKS***
Vsauce1: http://youtube.com/vsauce1
Vsauce2: http://youtube.com/vsauce2
Vsauce3: http://youtube.com/vsauce3
published: 01 May 2018
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Density
Just like all matter water has physical properties that can be measured and calculated. To find the mass of water you will need a beaker and a scale. First find the mass of the empty beaker. Next, fill up the beaker to your desired amount. Then use the scale to find the mass of the filled beaker. To find the mass of just the water, subtract the mass of the empty beaker from the full beaker. Our sample is 100 grams.
The volume of water can be measured using a graduated cylinder. Our sample is 100ml.
Density is calculated by dividing the mass by the volume. Plug in our measured mass at 100 grams and divide that by our measured volume of 100 ml. Water's density is 1 g/ml.
Objects with a density greater than 1g/ml will sink when placed in water. Objects with a density less than one wil...
published: 28 Feb 2013
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Density, Mass and Volume formula tutorial
Calculate Volume Mass and Density here: https://www.okcalculator.com/density-mass-calculator.html - What is Density mass volume formula? How do you calculate the volume, or define what has more mass of any material or substance? In our video, we explain the process, calculation, origin and purpose of the density mass or volume of any material.
Here are 2 identical bags. One is full of chocolate and the other one is full of gold. Which bag do you think will be heavier to carry back home: the one with chocolate or gold?
Well, a bag of gold will certainly be more rewarding, … but it will probably be physically impossible to carry - even for a bodybuilder!
Why? Because the DENSITY of gold particles is so much higher than the density of milk or chocolate.
Another example of density can be se...
published: 04 Feb 2018
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Neil deGrasse Tyson Explains the Difference Between Mass, Weight, and Density
If you’re trying to get in shape you need to lose weight, right? Neil deGrasse Tyson says wrong. On this StarTalk explainer, Neil and comic co-host Chuck Nice are breaking down the differences between mass, weight, and density.
To start, Neil tells us why when you want to get in shape, you need to lose mass. You’ll learn why a weight-loss book written by a physicist would just be one sentence. We explore the difference between mass and weight and why weight is all about forces.
Then, we move on to density. Find out why heavy cream is lighter than skim milk. We explore how the hull of a ship keeps the ship buoyant. All that, plus, Neil explains why, if you want to lose weight quickly, just head to the Moon and hop on a scale.
About the prints that flank Neil in this video:
"Black Swan...
published: 02 Nov 2020
2:30
What is Density? | Gravitation | Physics | Don't Memorise
Understanding the concept of Density is very important in order to understand Physics.
Watch this video to fully grasp the idea of density.
To get access to ...
Understanding the concept of Density is very important in order to understand Physics.
Watch this video to fully grasp the idea of density.
To get access to the entire course based on Gravitation, enrol here: https://bit.ly/Gravitation_G9
In this video, we will learn:
0:00 Introduction
0:52 Density
1:14 Density Formula
1:24 Unit of Density
1:32 Why Wood Floats on Water?
To watch more Physics videos, click here: https://bit.ly/PhysicsVideos_DMYT
Don’t Memorise brings learning to life through its captivating educational videos. To Know More, visit https://DontMemorise.com
New videos every week. To stay updated, subscribe to our YouTube channel: http://bit.ly/DontMemoriseYouTube
Register on our website to gain access to all videos and quizzes:
http://bit.ly/DontMemoriseRegister
Join us on Facebook: http://bit.ly/DontMemoriseFacebook
Follow us on Twitter: https://twitter.com/dontmemorise
Follow us: http://bit.ly/DontMemoriseBlog
#Density #Gravitation #Physics
https://wn.com/What_Is_Density_|_Gravitation_|_Physics_|_Don't_Memorise
Understanding the concept of Density is very important in order to understand Physics.
Watch this video to fully grasp the idea of density.
To get access to the entire course based on Gravitation, enrol here: https://bit.ly/Gravitation_G9
In this video, we will learn:
0:00 Introduction
0:52 Density
1:14 Density Formula
1:24 Unit of Density
1:32 Why Wood Floats on Water?
To watch more Physics videos, click here: https://bit.ly/PhysicsVideos_DMYT
Don’t Memorise brings learning to life through its captivating educational videos. To Know More, visit https://DontMemorise.com
New videos every week. To stay updated, subscribe to our YouTube channel: http://bit.ly/DontMemoriseYouTube
Register on our website to gain access to all videos and quizzes:
http://bit.ly/DontMemoriseRegister
Join us on Facebook: http://bit.ly/DontMemoriseFacebook
Follow us on Twitter: https://twitter.com/dontmemorise
Follow us: http://bit.ly/DontMemoriseBlog
#Density #Gravitation #Physics
- published: 20 Jul 2017
- views: 772907
4:19
Density - Why does oil float on water? | #aumsum #kids #science #education #children
Topic: Density
Why does oil float on water?
Hey.
Did you realize that a large log of wood floated on water but a comparatively smaller piece of rock sank?
How i...
Topic: Density
Why does oil float on water?
Hey.
Did you realize that a large log of wood floated on water but a comparatively smaller piece of rock sank?
How is this even possible?
This is possible because of density.
It is the measure of the mass of an object per unit volume.
In the first case, the log of wood floats on water because it has less density than water.
This means that the amount of mass present in unit volume of wood is less than the amount of mass present in unit volume of water.
However, in the second case, the piece of rock sinks because it has more density than water.
This means that the amount of mass present in unit volume of rock is more than the amount of mass present in unit volume of water.
Do you know why the helium filled balloon is rising up in the air?
This is again because of density.
The balloon consists of helium gas which has less density than the surrounding air, hence it rises up.
Here, have a look.
Oil is floating on water.
Are you assuming that this is because of density?
Yes, you are right.
Oil has less density than water.
Hence, it floats.
However, there is another reason due to which oil floats on water.
The reason is that both oil and water are immiscible liquids, that is, they do not mix with each other even if we shake them.
They separate out into two layers when kept undisturbed for sometime.
https://wn.com/Density_Why_Does_Oil_Float_On_Water_|_Aumsum_Kids_Science_Education_Children
Topic: Density
Why does oil float on water?
Hey.
Did you realize that a large log of wood floated on water but a comparatively smaller piece of rock sank?
How is this even possible?
This is possible because of density.
It is the measure of the mass of an object per unit volume.
In the first case, the log of wood floats on water because it has less density than water.
This means that the amount of mass present in unit volume of wood is less than the amount of mass present in unit volume of water.
However, in the second case, the piece of rock sinks because it has more density than water.
This means that the amount of mass present in unit volume of rock is more than the amount of mass present in unit volume of water.
Do you know why the helium filled balloon is rising up in the air?
This is again because of density.
The balloon consists of helium gas which has less density than the surrounding air, hence it rises up.
Here, have a look.
Oil is floating on water.
Are you assuming that this is because of density?
Yes, you are right.
Oil has less density than water.
Hence, it floats.
However, there is another reason due to which oil floats on water.
The reason is that both oil and water are immiscible liquids, that is, they do not mix with each other even if we shake them.
They separate out into two layers when kept undisturbed for sometime.
- published: 20 Feb 2017
- views: 866925
4:18
What is Density?
What is density? It has to do with Mass and Volume.
Wait... what is Mass? What is Volume?
Don't worry, all those questions will be answered as Phil from Sci...
What is density? It has to do with Mass and Volume.
Wait... what is Mass? What is Volume?
Don't worry, all those questions will be answered as Phil from Science Max explains one of the basic science concepts. Kids to adults and everyone in between (...teenagers, I guess?) will now understand density. Density=Mass/Volume
This video is one of the FUNdamentals of science. A handpicked group of concepts I firmly believe every human being on the planet should know. And what better time to learn than when you are a kid!? Here's an experiment that has to do with density:
https://www.youtube.com/watch?v=h9WraQWLRx0
Please consider supporting me on Patreon, because that's why you're reading the comments, right? For this link? Well, here it is:
https://www.patreon.com/philmccordic
You can also ask me questions on Facebook:
https://www.facebook.com/PMcCordic
or on Twitter:
https://twitter.com/PMccordic
https://wn.com/What_Is_Density
What is density? It has to do with Mass and Volume.
Wait... what is Mass? What is Volume?
Don't worry, all those questions will be answered as Phil from Science Max explains one of the basic science concepts. Kids to adults and everyone in between (...teenagers, I guess?) will now understand density. Density=Mass/Volume
This video is one of the FUNdamentals of science. A handpicked group of concepts I firmly believe every human being on the planet should know. And what better time to learn than when you are a kid!? Here's an experiment that has to do with density:
https://www.youtube.com/watch?v=h9WraQWLRx0
Please consider supporting me on Patreon, because that's why you're reading the comments, right? For this link? Well, here it is:
https://www.patreon.com/philmccordic
You can also ask me questions on Facebook:
https://www.facebook.com/PMcCordic
or on Twitter:
https://twitter.com/PMccordic
- published: 07 Oct 2020
- views: 37631
8:56
Density Practice Problems
To see all my Chemistry videos, check out
http://socratic.org/chemistry
We'll practice solving density example problems. We'll look at how to use the density n...
To see all my Chemistry videos, check out
http://socratic.org/chemistry
We'll practice solving density example problems. We'll look at how to use the density number like a conversion factor, to solve for mass or volume. Watch this video after the density introduction or before the more complicated video on density exercises that has unit conversion.
https://wn.com/Density_Practice_Problems
To see all my Chemistry videos, check out
http://socratic.org/chemistry
We'll practice solving density example problems. We'll look at how to use the density number like a conversion factor, to solve for mass or volume. Watch this video after the density introduction or before the more complicated video on density exercises that has unit conversion.
- published: 25 Aug 2012
- views: 999124
4:01
GCSE Science Revision Physics "Density"
Find my revision workbooks here: https://www.freesciencelessons.co.uk/workbooks
In this video, we look at Density. First we explore the differences in the arra...
Find my revision workbooks here: https://www.freesciencelessons.co.uk/workbooks
In this video, we look at Density. First we explore the differences in the arrangement of particles between solids, liquids and gases and then we look at how to calculate density. Finally, we use the particle model that we saw at the start to explain the differences in density between solids, liquids and gases.
Image credits: https://creativecommons.org/licenses/by/2.0/uk/
Student studying: Gnarlycraig
https://commons.wikimedia.org/wiki/File:Studying.jpg
Brick Cropped from original image
Andrewlister
https://commons.wikimedia.org/wiki/File:Brick.jpg
Expanded polystyrene block Motokichirou
https://commons.wikimedia.org/wiki/File:Пенопласт.jpg
Microscopic image of thermocol block
Rit Rajarshi
https://commons.wikimedia.org/wiki/File:Microscopic_Section_of_Thermocol_block_(Under_light-microscope,_bright-field,_Objective_10_X,_Eyepiece_10_X).jpg
https://wn.com/Gcse_Science_Revision_Physics_Density
Find my revision workbooks here: https://www.freesciencelessons.co.uk/workbooks
In this video, we look at Density. First we explore the differences in the arrangement of particles between solids, liquids and gases and then we look at how to calculate density. Finally, we use the particle model that we saw at the start to explain the differences in density between solids, liquids and gases.
Image credits: https://creativecommons.org/licenses/by/2.0/uk/
Student studying: Gnarlycraig
https://commons.wikimedia.org/wiki/File:Studying.jpg
Brick Cropped from original image
Andrewlister
https://commons.wikimedia.org/wiki/File:Brick.jpg
Expanded polystyrene block Motokichirou
https://commons.wikimedia.org/wiki/File:Пенопласт.jpg
Microscopic image of thermocol block
Rit Rajarshi
https://commons.wikimedia.org/wiki/File:Microscopic_Section_of_Thermocol_block_(Under_light-microscope,_bright-field,_Objective_10_X,_Eyepiece_10_X).jpg
- published: 31 Jul 2017
- views: 268492
18:35
Density Practice Problems
This chemistry video tutorial explains how to solve density problems. It provides all of the formulas and equations you need such as finding the volume of a sp...
This chemistry video tutorial explains how to solve density problems. It provides all of the formulas and equations you need such as finding the volume of a sphere or the volume of a rectangular prism. It even covers dimensional analysis and unit conversion density problems where you may have to convert g/mL to Kg/m^3. This video contains plenty of examples and practice problems including water displacement method density problems.
New Chemistry Video Playlist:
https://www.youtube.com/watch?v=bka20Q9TN6M&t;=25s&list;=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index;=1
Access to Premium Videos:
https://www.patreon.com/MathScienceTutor
https://wn.com/Density_Practice_Problems
This chemistry video tutorial explains how to solve density problems. It provides all of the formulas and equations you need such as finding the volume of a sphere or the volume of a rectangular prism. It even covers dimensional analysis and unit conversion density problems where you may have to convert g/mL to Kg/m^3. This video contains plenty of examples and practice problems including water displacement method density problems.
New Chemistry Video Playlist:
https://www.youtube.com/watch?v=bka20Q9TN6M&t;=25s&list;=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index;=1
Access to Premium Videos:
https://www.patreon.com/MathScienceTutor
- published: 05 Aug 2017
- views: 240767
7:09
Density Ball
Get our favorite science gear delivered to your door: http://www.curiositybox.com
https://twitter.com/tweetsauce
https://www.instagram.com/electricpants/
Vsa...
Get our favorite science gear delivered to your door: http://www.curiositybox.com
https://twitter.com/tweetsauce
https://www.instagram.com/electricpants/
Vsauce PO Box: PO Box 33168
L.A. CA 90033
***CREDITS***
Hosted by
Michael Stevens
Edited by
Hannah Canetti and Michael Stevens
(https://www.instagram.com/hannaynaycanaynay)
VFX by
Eric Langlay
(http://youtube.com/ericlanglay)
Music by Jake Chudnow
(http://youtube.com/jakechudnow)
***VSAUCE LINKS***
Vsauce1: http://youtube.com/vsauce1
Vsauce2: http://youtube.com/vsauce2
Vsauce3: http://youtube.com/vsauce3
https://wn.com/Density_Ball
Get our favorite science gear delivered to your door: http://www.curiositybox.com
https://twitter.com/tweetsauce
https://www.instagram.com/electricpants/
Vsauce PO Box: PO Box 33168
L.A. CA 90033
***CREDITS***
Hosted by
Michael Stevens
Edited by
Hannah Canetti and Michael Stevens
(https://www.instagram.com/hannaynaycanaynay)
VFX by
Eric Langlay
(http://youtube.com/ericlanglay)
Music by Jake Chudnow
(http://youtube.com/jakechudnow)
***VSAUCE LINKS***
Vsauce1: http://youtube.com/vsauce1
Vsauce2: http://youtube.com/vsauce2
Vsauce3: http://youtube.com/vsauce3
- published: 01 May 2018
- views: 2320752
3:13
Density
Just like all matter water has physical properties that can be measured and calculated. To find the mass of water you will need a beaker and a scale. First fin...
Just like all matter water has physical properties that can be measured and calculated. To find the mass of water you will need a beaker and a scale. First find the mass of the empty beaker. Next, fill up the beaker to your desired amount. Then use the scale to find the mass of the filled beaker. To find the mass of just the water, subtract the mass of the empty beaker from the full beaker. Our sample is 100 grams.
The volume of water can be measured using a graduated cylinder. Our sample is 100ml.
Density is calculated by dividing the mass by the volume. Plug in our measured mass at 100 grams and divide that by our measured volume of 100 ml. Water's density is 1 g/ml.
Objects with a density greater than 1g/ml will sink when placed in water. Objects with a density less than one will float when placed in water. If a block has a density of 0.1g/cm3 it will float because it's density is less than 1. Another block with a density of 0.5g/cm3 will also float because its density is less than 1. Notice that more of the block is below the waterline. A block with a density of 0.9g/cm3 is more dense so more of the block will be below the waterline. We can see that as density increases more of the block is below the waterline. Scientists have discovered that the blocks density will tell us exactly where the block will come to rest. If the density is 0.1g/cm3 then 10% will be below the waterline. To calculate where a block will come to rest just convert the density to a percent.
Density explains why ice floats. If you freeze water it expands. The black dots represent the atoms in water. No new atoms were are added to the water so because of the expansion there is more room between the atoms. Compared to the atoms in liquid water, the atoms in the ice are not as tightly packed together causing the ice to float. Try calculating density of ice for yourself. If you get a number less than one it will float. You can also predict how much of it will be below the waterline.
https://wn.com/Density
Just like all matter water has physical properties that can be measured and calculated. To find the mass of water you will need a beaker and a scale. First find the mass of the empty beaker. Next, fill up the beaker to your desired amount. Then use the scale to find the mass of the filled beaker. To find the mass of just the water, subtract the mass of the empty beaker from the full beaker. Our sample is 100 grams.
The volume of water can be measured using a graduated cylinder. Our sample is 100ml.
Density is calculated by dividing the mass by the volume. Plug in our measured mass at 100 grams and divide that by our measured volume of 100 ml. Water's density is 1 g/ml.
Objects with a density greater than 1g/ml will sink when placed in water. Objects with a density less than one will float when placed in water. If a block has a density of 0.1g/cm3 it will float because it's density is less than 1. Another block with a density of 0.5g/cm3 will also float because its density is less than 1. Notice that more of the block is below the waterline. A block with a density of 0.9g/cm3 is more dense so more of the block will be below the waterline. We can see that as density increases more of the block is below the waterline. Scientists have discovered that the blocks density will tell us exactly where the block will come to rest. If the density is 0.1g/cm3 then 10% will be below the waterline. To calculate where a block will come to rest just convert the density to a percent.
Density explains why ice floats. If you freeze water it expands. The black dots represent the atoms in water. No new atoms were are added to the water so because of the expansion there is more room between the atoms. Compared to the atoms in liquid water, the atoms in the ice are not as tightly packed together causing the ice to float. Try calculating density of ice for yourself. If you get a number less than one it will float. You can also predict how much of it will be below the waterline.
- published: 28 Feb 2013
- views: 1054044
2:28
Density, Mass and Volume formula tutorial
Calculate Volume Mass and Density here: https://www.okcalculator.com/density-mass-calculator.html - What is Density mass volume formula? How do you calculate th...
Calculate Volume Mass and Density here: https://www.okcalculator.com/density-mass-calculator.html - What is Density mass volume formula? How do you calculate the volume, or define what has more mass of any material or substance? In our video, we explain the process, calculation, origin and purpose of the density mass or volume of any material.
Here are 2 identical bags. One is full of chocolate and the other one is full of gold. Which bag do you think will be heavier to carry back home: the one with chocolate or gold?
Well, a bag of gold will certainly be more rewarding, … but it will probably be physically impossible to carry - even for a bodybuilder!
Why? Because the DENSITY of gold particles is so much higher than the density of milk or chocolate.
Another example of density can be seen in the way oil floats on water, but balsamic vinegar sinks in oil.
One substance is denser than another, causing the heavier liquid to sink and the lighter one to rise to the top.
Generally speaking, solids are denser than liquids, and liquids are denser than gases, … but this is not always the case as there are many exceptions to the rules.
The density of an object can even be affected by temperature and pressure - … as this changes the way the atoms and molecules bond to each other.
With so many things to account for, you might be wondering how you're supposed to figure all this out.
Turns out Archimedes, a Greek mathematician, was wondering the exact same thing.
He defined the properties of density and invented a handy formula so that you and I could figure out density anytime we want!
Due density's origin, it's common to see it written as the Greek letter "ρ" (rho)
Over 2000 years ago Archimedes showed us that when we're talking about density, we're really referring to something's mass (how much material is present) and it's volume (how much space it occupies).
Even though you can change the amount of substance to alter its mass and volume, the density of the material stays the same … because it's a physical property of the substance.
So, if you divide something's mass by its volume, you get.. It's DENSITY!
Because of the special relationship between density, mass, and volume, you can always use this triangle if you need to find a missing variable.
Or, If you want to make things easier, just hop over to OKCalculator.com.
Our density calculator lets users solve problems for any of the three variables with one simple click.
Thanks for watching! Please care to subscribe and share, unified knowledge is power!
https://wn.com/Density,_Mass_And_Volume_Formula_Tutorial
Calculate Volume Mass and Density here: https://www.okcalculator.com/density-mass-calculator.html - What is Density mass volume formula? How do you calculate the volume, or define what has more mass of any material or substance? In our video, we explain the process, calculation, origin and purpose of the density mass or volume of any material.
Here are 2 identical bags. One is full of chocolate and the other one is full of gold. Which bag do you think will be heavier to carry back home: the one with chocolate or gold?
Well, a bag of gold will certainly be more rewarding, … but it will probably be physically impossible to carry - even for a bodybuilder!
Why? Because the DENSITY of gold particles is so much higher than the density of milk or chocolate.
Another example of density can be seen in the way oil floats on water, but balsamic vinegar sinks in oil.
One substance is denser than another, causing the heavier liquid to sink and the lighter one to rise to the top.
Generally speaking, solids are denser than liquids, and liquids are denser than gases, … but this is not always the case as there are many exceptions to the rules.
The density of an object can even be affected by temperature and pressure - … as this changes the way the atoms and molecules bond to each other.
With so many things to account for, you might be wondering how you're supposed to figure all this out.
Turns out Archimedes, a Greek mathematician, was wondering the exact same thing.
He defined the properties of density and invented a handy formula so that you and I could figure out density anytime we want!
Due density's origin, it's common to see it written as the Greek letter "ρ" (rho)
Over 2000 years ago Archimedes showed us that when we're talking about density, we're really referring to something's mass (how much material is present) and it's volume (how much space it occupies).
Even though you can change the amount of substance to alter its mass and volume, the density of the material stays the same … because it's a physical property of the substance.
So, if you divide something's mass by its volume, you get.. It's DENSITY!
Because of the special relationship between density, mass, and volume, you can always use this triangle if you need to find a missing variable.
Or, If you want to make things easier, just hop over to OKCalculator.com.
Our density calculator lets users solve problems for any of the three variables with one simple click.
Thanks for watching! Please care to subscribe and share, unified knowledge is power!
- published: 04 Feb 2018
- views: 141972
15:16
Neil deGrasse Tyson Explains the Difference Between Mass, Weight, and Density
If you’re trying to get in shape you need to lose weight, right? Neil deGrasse Tyson says wrong. On this StarTalk explainer, Neil and comic co-host Chuck Nice a...
If you’re trying to get in shape you need to lose weight, right? Neil deGrasse Tyson says wrong. On this StarTalk explainer, Neil and comic co-host Chuck Nice are breaking down the differences between mass, weight, and density.
To start, Neil tells us why when you want to get in shape, you need to lose mass. You’ll learn why a weight-loss book written by a physicist would just be one sentence. We explore the difference between mass and weight and why weight is all about forces.
Then, we move on to density. Find out why heavy cream is lighter than skim milk. We explore how the hull of a ship keeps the ship buoyant. All that, plus, Neil explains why, if you want to lose weight quickly, just head to the Moon and hop on a scale.
About the prints that flank Neil in this video:
"Black Swan” & "White Swan" limited edition serigraph prints by Coast Salish artist Jane Kwatleematt Marston. For more information about this artist and her work, visit Inuit Gallery of Vancouver https://inuit.com/.
Support us on Patreon: https://www.patreon.com/startalkradio
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About StarTalk:
Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
#StarTalk #NeildeGrasseTyson
https://wn.com/Neil_Degrasse_Tyson_Explains_The_Difference_Between_Mass,_Weight,_And_Density
If you’re trying to get in shape you need to lose weight, right? Neil deGrasse Tyson says wrong. On this StarTalk explainer, Neil and comic co-host Chuck Nice are breaking down the differences between mass, weight, and density.
To start, Neil tells us why when you want to get in shape, you need to lose mass. You’ll learn why a weight-loss book written by a physicist would just be one sentence. We explore the difference between mass and weight and why weight is all about forces.
Then, we move on to density. Find out why heavy cream is lighter than skim milk. We explore how the hull of a ship keeps the ship buoyant. All that, plus, Neil explains why, if you want to lose weight quickly, just head to the Moon and hop on a scale.
About the prints that flank Neil in this video:
"Black Swan” & "White Swan" limited edition serigraph prints by Coast Salish artist Jane Kwatleematt Marston. For more information about this artist and her work, visit Inuit Gallery of Vancouver https://inuit.com/.
Support us on Patreon: https://www.patreon.com/startalkradio
FOLLOW or SUBSCRIBE to StarTalk:
YouTube: https://www.youtube.com/user/startalkradio?sub_confirmation=1
Twitter: http://twitter.com/startalkradio
Facebook: https://www.facebook.com/StarTalk
Instagram: https://www.instagram.com/startalkradio/
About StarTalk:
Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
#StarTalk #NeildeGrasseTyson
- published: 02 Nov 2020
- views: 171572