Volume measurement by displacement method | Density | Physics

Measuring cylinders help in finding volume of liquids, but what of bodies with irregular shapes? This video shows how to use the water displacement method to measure the volume of bodies. A measuring cylinder or overflow vessel is used to determine two volumes - the volume before a body is immersed and the volume with the body immersed. The reasoning is that the immersed body has displaced its own volume, so by calculating the difference in volume of water, we can find the volume of the body. Once we find the mass of the body, the density can then be calculated as mass/volume. Note that this method only works of the object whose volume is to be measured completely sinks in water.

[ashketcham]

Amazing video. Truly makes me understand why people call me dense. 👍

[gerardomata.costarica]

the video i was looking for! thank you for making it short and straight to the point!

[emi-frmf]

I have an experiment to do for school and this helped so much!! Thank you! :D

[alessaclaro]

i love that u went right to the point! great explanation!

[shubhukaistha]

I am now at age 25.
I can't understand Density, volume in my whole life

Thanku for this video

Now I understand what is mass, density & volume

[chwernesto]

This is so helping, now I didn't understand how to measure the density of the floating object.

[tr.ayyaayyapan]

good teaching, words speaking very clear and high intensty

[godgamers]

This helped me study for my test! Thank you so much!

[Abdulrheman]

It was very helpful thanks😊May Allah bless you

[pratikzaware]

really i like this channel.this helps me in my study.i always thankful for your work.

[nicksutton]

Thanks! Exactly the explanation needed.

[louizalayug]

It is really helpful, i now fully understand it by its nature than just its formula.... Good job😊😊😊

[lucie]

Hope it will help me for my practical tomorrow

[mohamedsalah]

It's nice but I didn't understand how to measure the floating stuff

[cindyandjoey]

To measure a floating object, could you do it like this?: First weigh the very light object on the scale. Say that it weighs 50g. Then you could use fine, almost weightless thread to tether the object to the bottom and pull it under water. The object will displace water. Let's say the level rises to 1600 ml, so amount displaced equals 1600 - 1000 = 600 ml, which is same as 600 cm^3. Now, you'd calculate density at 50g / 600 cm^3 = 0.08 g/cm^3. The answer should be a number less than 1 because water is 1 g/cm^3, and objects that float have a specific gravity less than water, so this seems correct.

[crowxe]

if we tether a ball to the bottom of a tank and put the tank on scale and then we cut the thread, shouldn't the scale read higher momentarily until the ball reaches the surface or reaches its terminal velocity?

[harithapa]

Simply outstanding whole things on just on 2min.

[alfieseuke]

Thank you this really helped i will be using this channel more x

[parasgupta]

if we had taken water 700 ml instead of 1000 ml, would the result be same or its independent of water volume?

[Navarrete]

How would you find the volume of sand, air, or cotton?