Density

016 - Density
In this video Paul Andersen explains how density measures the compactness of a material. You can calculate the density of a material by measuring the mass and dividing this by the volume. Water displacement is an effective way to measure the volume of an irregular object.
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Music Attribution
Title: String Theory
Artist: Herman Jolly
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All of the images are licensed under creative commons and public domain licensing:
"File:Artsy Density Column.png." Wikipedia, the Free Encyclopedia. Accessed May 15, 2014. en.wikipedia.or....
intl, Switch. English: Sleek Bowling Ball, Designed by Pininfarina for Switch®, April 4, 2006. Own work. commons.wikimed....
me, Beach_volleyball_ball jpg: Thuederivative work: Amada44 talk to. A Beach Volleyball Ball., 17:49 (UTC). Beach_volleyball_ball.jpg. commons.wikimed....
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[@sbu_dibay5019]

Guys, for object A, the density is: 19.27kg/L Object B, the density is: 0.64kg/L

[@vslngls]

ty bro doing edpuzzle rn😭😭🙏

[@qibli7679]

Change it to 0.5 speed and it sounds like he wants to die XD

[@dominationz8272]

xD

[@jaredlobo504]

try 0.25 and it sounds better/worse

[@od3nizer156]

XDD

[@ONYX293]

😂😂

[@janetkaczmarek591]

For Object A it appears he used an incorrect volume of 2.38 L as opposed to 3.38 L.

[@sethwho7913]

ya I was wondering why my calculations were off thank you

[@mugglepuff]

Yeah bc I got a density of 19.27 kg/L

[@jjlepepe5875]

Mystery solved

[@georgiaclifford9274]

yes! this was driving me crazy. glad someone else saw it

[@manjeet1278]

You are great sir. At age of 30,I m learning these things practically. :D. Thks so much from India :)

[@sidmantravadi8509]

is the second one 19.27

[@AarushLanjharia]

yes

[@rishipatel1]

Thats what I got too

[@adithyanarayanan467]

Yeah, it should be 19.27 kg/L, rather than the 27.37 kg/L he mentions in the video...as others have noted, it could very well be because he accidentally chose 2.38 L instead of 3.38 L for the volume.

[@drewking07]

No

[@GabrielTheExplorer254]

I thought I was going crazy!! Teaching myself physics and electricity from KZbin and it's not been the easiest. I was going to pull my hair out if the answer was not 19.27! Lol

[@AbhishekRai-qo2fj]

Nice work sir for every student of any country

[@DanielSmith21]

How in the heck did you get 27.37 kg/L???

[@PNWMan]

Look below, he screwed up. I got 19.27 kg/L

[@knightir4636]

this was made in 2014 why is the quality so good

[@tanmaydeshmukh3517]

Density of obj A should be 19.27

[@matthewreif9519]

My smart Period 8 class thinks your calculation is incorrect for the density of object A.

[@allywalters7239]

You have 8 classes?! I only have 6 classes.

[@zuki3764]

Ally Walters... only 6???I have 11🤭

[@zuki3764]

@Connor Barnhill gah dayum👴🏿

[@sylsamvies565]

@Connor Barnhill I have 17

[@thebatperson7530]

@@sylsamvies565 I have 4????

[@michellelovesgarfiel]

The math for block A is incorrect. This made me more confused than I already was.

[@Kcoo432]

(Your density for block a is wrong- my class AND my teacher agree)

[@lazerautodetailing]

Online teacher posted this video because she doesn't teach anything, and the answer to block A is wrong smh.

[@toccoc1907]

A is 19.27 Round up

[@AarushLanjharia]

yes

[@junior-bo8rk]

really helped me out with this, thank you

[@jameshubert5988]

call me crazy, but the units for density are g/cubic cm yes? Fresh water for example is 1 g/cubic cm

[@fynnolson6939]

HE ALMOST HAS 1MIL SUBS WHOAAAAAAAAAA

[@johnsmallpaw6242]

Greatly appreciated! Thanks:)

[@waffleabottle6630]

I can't find this in edmodo so I come to KZbin, the same video

[@ruadhmcguire2539]

Thank you so much u made me get an A+

[@dominationz8272]

Yeah, Yeah sure

[@eliza4094]

I have a question, how did he get 27.37kg for block A as I got 19.27 or rounded 20?

[@mayurvban]

I'm confused.......

[@michaelpyott6824]

A = 19.23kg/L, B = 0.64Kg/L Thats what I got!!?

[@michaelpyott6824]

Why is your answer different for A?

[@rtrt-dt8ii]

Michael Pyott me too im confused.

[@desmondg2267]

Michael Pyott He divided by 2.38L instead of 3.38L for some reason.

[@UshioKiss]

+Desmond G Oh, god, I was so confused...

[@katmaccalla1503]

im so confused!

[@jeanne7552]

Totally awesome!

[@sherrymiller3810]

great video man keep it up

[@XxdrummerxX2468]

This video was very helpful thank you so much

[@shannontyler5434]

The density of #1 is 19.27

[@nathanbloatley1633]

try explaining this to a flat earther...they think density is a replacement for gravity.

[@ayatali7071]

Excuse me can i ask what is the program u r using for teaching that???

[@mastaan2301]

is there any object with a density of exactly 1 just like water? and if so, would it float or sink? assuming that the object wouldnt disolve in water and its a physical object

[@joshuamoyer4141]

+Masta An Yes, there are some objects with the same density as water. When an object is submerged in a fluid that has the same density as the object, it's called neutrally buoyant. When this occurs, the buoyant force acting on the object perfectly cancels out the objects weight, so you could literally set a cube that was neutrally buoyant in the center of a tank of water, not touching the bottom or floating, and it would just remain wherever you put it.

[@mastaan2301]

cool. thanks

[@joshuamoyer4141]

Masta An np

[@angels514]

block A is confusing af

[@food.7086]

thank you

[@aidenforbes7982]

I got for B = O.64 Kg/L and for A = 19. 27 Kg/L

[@mahimatripathi7589]

this was helpful. thank you

[@aaronmiller2020]

Epic video

[@sidmantravadi8509]

i am confused

[@sleepingwarrior4618]

It's because it isn't gravity that causes things to accelerate, it's the medium and it's relationship with matter that does.

[@michaelryd6737]

But... All atoms don´t have the same weight... Actually no one has! So your example is a little weird even if it´s easy to understand. I give you that... But if you ever jump to Mole or Avogadros constant with the same type of nonsense, you will feel the katana once more at your throat.

[@kesemek]

how much mouses does this guy have

[@mars8957]

He go the density for object A wrong, I think. could be wrong

[@wishdoom]

you really shouldn't be putting up wrong answers on your tutorial videos... if some little kid tries to calculate the density they will think they got an answer wrong (when they compare the correct answer they got to your wrong answer) then feel like they aren't good at learning; potentially discouraging them from learning physics.

[@sarahsubotic163]

Hi! I am a high school teacher. Which software do you use for making your videos?

[@sleepingwarrior4618]

Do you realise that gravity is not a force...but you teach children that it is? What's the point in teaching false science to children?

[@makennafrancl3216]

This was no help

[@drewking07]

Agree everyone is saying so much help it not

[@bigred4536]

Math

[@CodyIsles05]

PoofyPufferGaming hey

[@bigred4536]

CodyIsles05 hi

[@miguelvazquez7611]

Hi

[@Patrick99301]

hey heyy, you like huey lewis and the news?

[@刘巴顿z]

Hi guys

[@mr.habanero4186]

wow

[@larkvonseggen6977]

i dont like 8th grade :(((((

[@drewking07]

I in 7th and I learning this

[@acelynfury9992]

cool

[@bratpack3thebandit]

Yeah not helpful you didn't explain enough

[@jasonjpl5301]

wassup guys

[@zmbsoul]

this is so unhelpful

[@toccoc1907]

your caculation have an error

[@guguqr6828]

yes it is i think he just presses 2 withut realising it

[@mohammadghodusifar1930]

I think this was just toooooooo easy.

[@LghtnngNdl]

This didn't help my child at all

[@S_U_M_E_R]

Thx for letting us know KAREN, literally everyone else says it was decent and/or good

[@LghtnngNdl]

@@S_U_M_E_R lol its a joke. idc about chemistry as I am only in it because of the credits buckaroo

[@emsstudent2960]

What is the point of this just go watch Logan Paul in a forest

[@fynnolson6939]

lmaooo

[@AwesomeGamer-wp6pq]

Oof

[@atlas1130]

Nice vid he he he ha👌👌👌👌👌👌👌👌👌👌😤😤😤😤

[@brendank6223]

🤓

[@theofficalteamdantdmchanne7390]

Wow this is ####

[@AwesomeGamer-wp6pq]

TheOfficalTeamDanTDMChannel go dantdm

[@fynnolson6939]

@@AwesomeGamer-wp6pq no

[@jgd5535]

Doesn't it seem like spacetime is compressed around massive objects? Just as it seems that spacetime compresses when you travel through it with acceleration. I wonder...Do objects in a gravitational field also shrink in one dimension with the place of the gravitational acceleration? It would seem so...Has anyone figured that mass does not bend spacetime, rather compresses it? The graphic of the planet over the funneling grid is just so ridiculous...imagine a 3d grid...place the planet into it...the grid expands out in a fisheye as if spacetime and matter could not exist together...this creates the gravitational effect...not a 2d piece of latex with a bowling ball stretching it down in the center...if space time is being compressed and not just apparently bent, wouldn't that mean that spacetime is not homogenous? and then...do we really need dark matter or energy anymore? I think not...I think they shall not find it...how can you bend something and not change it's internal geometry...? What force would be pulling the planet into the 2d grid anyway? Its really a very incomplete model for gravity...My model features a 3d grid and compression is the force which bends spacetime into increasingly larger and larger, but weaker and weaker spherical zones of spacetime compression...creates all the same effects of the bending model...What do I figure is actually compressing? The gluon field...a proven vacuum energy that permeates all of space...I figure when you get a bunch of matter compressed into a smaller and smaller area, the gluon field energy is not enough to support all those quarks and nucleons...so, the field of spacetime bends inward from all directions...akin to being compressed...and yes...it would shrink matter in one direction...spacetime is not actually more concentrated in these areas of compression...the "amount" of spacetime experienced relatively, is less...black holes compress spacetime down to nothing...there is nothing for light to travel through...it has been smashed out of existence...not stretched, as modern day physicists like to envision...when we travel through spacetime faster and faster, we experience less of it relatively because of our motion though it...and it shrinks...less time and less space in one direction...Where does a guy like me take ideas like this...? Thanks for all the videos...very inspiring :)

[@gametrench1255]

was not helpful can't understand anything u say

[@h3retic583]

I understood this perfectly in 8th grade.

[@samthesnail2919]

😐 boring

[@sidmantravadi8509]

nev mind

[@sidmantravadi8509]

is the second one 19.27