Archimedes' Principle

Advertisement Remove all ads

Topics

  • Archimedes’ Principle
  • Experiment verification of Archimedes’ Principle

Notes

Archimedes Principle:

Archimedes studied the upthrust acting on a body, when it is completely or partially immersed in a fluid by performing several experiments and then started the following principle known as Archimedes principle.

When a body is partially or wholly immersed in a fluid, it experiences an upthrust equal to the weight of the liquid displaced.

  • Take a piece of stone and tie it to one end of a rubber string or a spring balance.
  • Suspend the stone by holding the balance or the string as shown in Fig. a
  • Note the elongation of the string or the reading on the spring balance due to the weight of the stone.
  • Now, slowly dip the stone in the water in a container as shown in Fig. b
  • What you will observe is that the elongation of the string & the reading of the balance decreases as the stone is gradually dipped into the water.
  • Since the extension decreases once the stone is lowered in water, it means that some force acts on the stone in upward direction. As a result, the net force on the string decreases and hence the elongation also decreases.

Applications of Archimedes principle:

  • It is used in designing ships and submarines.
  • The lactometers and hydrometers used for measuring the purity of a sample of milk and for determining the density of the liquids are based on the principle.
If you would like to contribute notes or other learning material, please submit them using the button below.

Shaalaa.com | (Archimides Principle and numerical

Shaalaa.com


Next video


Shaalaa.com


(Archimides Principle and numerical [00:09:48]
S
Series: series 1
0%


Related QuestionsVIEW ALL [19]

Advertisement Remove all ads
Share
Notifications



      Forgot password?
View in app×