Kaymito Leaves Decoction as Antiseptic Mouthwash
San Sebastian College – Recoletos
High School Department
Manila
Principle of Gravitational Force
An Investigatory Project Submitted to
Mrs. Elizabeth S. Nicolas In Partial Fulfilment of the Requirements in Science IV (PHYSICS)
Name: Mark Joseph Delfin Patricia Blessy Gonzales Reymon Musa John Michael Ortiz
Date: March 4, 2013 i
ABSTRACT
Delfin M.J. (2013) The Principle of The Gravitational Force
Gonzales P.B.
Musa R.M.
The objective is to explain the principle of gravity about the water-cardboard experiment which is influenced by a lot of environmental factors by creating an air pressure and explore various differentials using a varying material. For the properties of the fluids, water is incompressible. Meaning, even if additional pressure was exerted, no change in volume will be observed. On the other hand, Air is compressible; it can change its volume under pressure, can be either compressed into a lesser volume or can be expanded once the pressure is release.
We tried bending the rules a little with a cup of water that stays inside the glass when held upside down. In order for us to know the first thing that we’ve done is to collect all the materials that we need. Now the materials are gathered, the next thing we did is to fill the glass until it is almost full. Then carefully place the cardboard on top of the glass, holding it in place to ensure that no air bubbles enter the glass. Holding the cardboard flush to the glass, turn the glass completely upside down. Over the sink, another water-safe surface, or outside, remove your hand from the cardboard.
ii
This sometimes requires practice, but the lack of air bubbles will create a pressure difference strong enough to hold the cardboard in place when your hand is removed.
Then Repeat steps with different materials such as different pieces of cardboard/index cards or playing card. With that
High School Department
Manila
Principle of Gravitational Force
An Investigatory Project Submitted to
Mrs. Elizabeth S. Nicolas In Partial Fulfilment of the Requirements in Science IV (PHYSICS)
Name: Mark Joseph Delfin Patricia Blessy Gonzales Reymon Musa John Michael Ortiz
Date: March 4, 2013 i
ABSTRACT
Delfin M.J. (2013) The Principle of The Gravitational Force
Gonzales P.B.
Musa R.M.
The objective is to explain the principle of gravity about the water-cardboard experiment which is influenced by a lot of environmental factors by creating an air pressure and explore various differentials using a varying material. For the properties of the fluids, water is incompressible. Meaning, even if additional pressure was exerted, no change in volume will be observed. On the other hand, Air is compressible; it can change its volume under pressure, can be either compressed into a lesser volume or can be expanded once the pressure is release.
We tried bending the rules a little with a cup of water that stays inside the glass when held upside down. In order for us to know the first thing that we’ve done is to collect all the materials that we need. Now the materials are gathered, the next thing we did is to fill the glass until it is almost full. Then carefully place the cardboard on top of the glass, holding it in place to ensure that no air bubbles enter the glass. Holding the cardboard flush to the glass, turn the glass completely upside down. Over the sink, another water-safe surface, or outside, remove your hand from the cardboard.
ii
This sometimes requires practice, but the lack of air bubbles will create a pressure difference strong enough to hold the cardboard in place when your hand is removed.
Then Repeat steps with different materials such as different pieces of cardboard/index cards or playing card. With that