Presentation in PhysicsPresentation in PhysicsGroupGroup II

Submitted to:Submitted to:

Mr. Edwin Haniel Mr. Edwin Haniel EnganaEngana

Archimedes PrincipleArchimedes Principle The principle that the The principle that the

net fluid force on a net fluid force on a body submerged (or body submerged (or floating) in a stationary floating) in a stationary fluid is an upward force fluid is an upward force equal to the weight of equal to the weight of the fluid displaced by the fluid displaced by the body. This concept, the body. This concept, perhaps the oldest perhaps the oldest stated principle in fluid stated principle in fluid mechanics, was first put mechanics, was first put forth by Archimedes in forth by Archimedes in the third century B.C. the third century B.C.

Definition of BuoyancyDefinition of Buoyancy In physics, In physics, buoyancybuoyancy is is

the upward force on an the upward force on an object produced by the object produced by the surrounding fluid in which surrounding fluid in which it is fully or partially it is fully or partially immersed, due to the immersed, due to the pressure difference of the pressure difference of the fluid between the top and fluid between the top and bottom of the object. The bottom of the object. The net upward buoyancy force net upward buoyancy force is equal to the magnitude is equal to the magnitude of the weight of fluid of the weight of fluid displaced by the body. This displaced by the body. This force enables the object to force enables the object to float or at least to seem float or at least to seem lighter. lighter.

Some objects, when placed Some objects, when placed

in water, float, while others in water, float, while others sink, and still others sink, and still others neither float nor sink. This neither float nor sink. This is a function of buoyancy. is a function of buoyancy.

We call objects that float, We call objects that float, positively buoyant. positively buoyant.

Objects that sink are called Objects that sink are called negatively buoyant. negatively buoyant.

We refer to object that We refer to object that neither float nor sink as neither float nor sink as neutrally buoyant. neutrally buoyant.

Project in PhysicsProject in Physics

Barge using Tin CansBarge using Tin Cans

How to make barge using How to make barge using tin canstin cans

An application of An application of Archimedes PrincipleArchimedes Principle

MaterialsMaterials

Tin Cans (100pcs)Tin Cans (100pcs) Aluminum Foil Aluminum Foil

TapeTape Straw RopeStraw Rope StyrofoamStyrofoam Pet bottlePet bottle

ProcedureProcedure

We cut the aluminum foil tape and We cut the aluminum foil tape and pet bottle into small pieces.pet bottle into small pieces.

We Connect the tin cans using cut We Connect the tin cans using cut pet bottles and placed aluminum foil pet bottles and placed aluminum foil tape at each end of the plastic bottle. tape at each end of the plastic bottle. And on its opposite sides.And on its opposite sides.

After we connect all of the tin cans, we placed After we connect all of the tin cans, we placed

the tin cans constantly with a dimension of 10 the tin cans constantly with a dimension of 10 x 10.x 10.

And we connect this tin cans using a And we connect this tin cans using a packaging tape and straw rope to compact it.packaging tape and straw rope to compact it.

We used the aluminum foil tape to cover the We used the aluminum foil tape to cover the hole of each cans so water can’t pass through hole of each cans so water can’t pass through it.it.

Finally we put a Styrofoam on it to support Finally we put a Styrofoam on it to support from breakage. from breakage.

Application of Archimedes PrincipleApplication of Archimedes Principle

Buoyancy states that “the buoyant force exerted Buoyancy states that “the buoyant force exerted on a floating body is equal to the weight of the on a floating body is equal to the weight of the volume of water which is displaced by that body”.volume of water which is displaced by that body”.

When we finished the barge, we make sure that When we finished the barge, we make sure that the tin cans are compact and tightly stick the tin cans are compact and tightly stick together. According to Archimedes principle:together. According to Archimedes principle:a a body wholly or partially submerged in a fluid is body wholly or partially submerged in a fluid is buoyed up by a force equal to the weight of the buoyed up by a force equal to the weight of the displaced fluid. This concept helps us to know displaced fluid. This concept helps us to know why some things float while other objects sink. why some things float while other objects sink. And we are hoping that our barge will float. And we are hoping that our barge will float.

On the spot!!!On the spot!!!

Presented by:Presented by:Group IGroup I

IV-AguinaldoIV-Aguinaldo

Lovely RocaboLovely RocaboApril Jhane PerochoApril Jhane Perocho

Eduardo HugoEduardo HugoMa.Katrina AniganMa.Katrina Anigan

JennelJennelElejeraElejeraHazel ApareceHazel Aparece

Lovely RodriguezLovely Rodriguez