1) What is Archimedes principle? Describe an activity related to it.

2)What is buoyancy? Describe it with an activity.

3) Name the areas in which Archimedes principle is applicable.

For details on Archemedes' principle, please have a look at the link given below:

https://www.meritnation.com/ask-answer/question/explain-archimedes-principle-with-examples/gravitation/459037

Lactometer :-It is based on the Archemedes' principle. When we put loctometer inside the liquid it experience buoyant force(weight of displace fluid). Hence measure relative density in the given scale of loctometer. Lower the density of liquid farther, the lactometer will sink.

It is basically a glass tube with a round shaped bottom containing a liquid of certain density inside it. The liquids will rise/fall inside the tube depending upon the pressure and depth.

For few more practical applications of Archemedes' principle, please refer to the link provided below:

https://www.meritnation.com/ask-answer/question/mention-any-two-practical-applications-of-archim/gravitation/1585942

Buoyancy:- 

When an object is immersed partially or fully in a liquid, it experiences an upward force. This upward force is known as buoyant force and this phenomenon is known as buoyancy. Buoyancy is also known as up thrust. 

The force of buoyancy is given as, 

F = Vρg 

where V is the volume of the liquid displaced, 

ρ is the density of liquid and 

g is acceleration due to gravity. 

Buoyancy helps ships and boats to float on water, helium balloons in air etc.

FB is the force of buoyancy.

Mg = weight of object.

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 ya ya

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i)Archimedes' treatise On floating bodies, proposition 5, states that

Any floating object displaces its own weight of fluid.

Archimedes of Syracuse[2]

For more general objects, floating and sunken, and in gasses as well as liquids (i.e. a fluid), Archimedes' principle may be stated thus in terms of forces:

Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object.

Archimedes of Syracuse

with the clarifications that for a sunken object the volume of displaced fluid is the volume of the object, and for a floating object on a liquid, the weight of the displaced liquid is the weight of the object.

In short, buoyancy = weight of displaced fluid

ii)In physics, buoyancy (play /ˈbɔɪ.ənsi/) is a force exerted by a fluid that opposes an object's weight. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus a column of fluid, or an object submerged in the fluid, experiences greater pressure at the bottom of the column than at the top. This difference in pressure results in a net force that tends to accelerate an object upwards. The magnitude of that force is equal to the difference in the pressure between the top and the bottom of the column, and is also equivalent to the weight of the fluid that would otherwise occupy the column. For this reason, an object whose density is greater than that of the fluid in which it is submerged tends to sink.

iii) this principle is applicablein following areas:

  • designing of sub marine
  • lactometer
  • hydrometer

THE FORCE AT WOEK IN BUOYANCY

HOPE IT HELPS!!!!!!!!!

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Come on i didnt ask you whether these questions are correct or wrong. I wanted the answer and please if you dont know the answer dont comment things which are not at all related.........

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thanx saumya

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