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Diet Coke and Mentos on a Mountain Top! 🏔️ #mountains #experiment #shorts #science

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Physics of toys- Cup Flyers // Homemade Science with Bruce Yeany

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DEFINTION:
Pressure is force per unit area.

FORMULA:
P = F/A

UNITS:
P = Pressure in Pascal (symbol Pa)
F = Force in Newtons (symbol N)
A = Area in meters squared (symbol m²)

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TITAN IMPLOSION DUE TO PRESSURE GRADIENT

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TITAN IMPLOSION DUE TO PRESSURE GRADIENT

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HERE’S What Happened To The BODIES At IMPLOSION Of Submarine

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PASCAL'S PRINCIPLE states:                      Pressure applied to an enclosed fluid is transmitted undiminished to every part of the fluid, as well as to the walls of the container.       

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PASCAL'S PRINCIPLE states:                      Pressure applied to an enclosed fluid is transmitted undiminished to every part of the fluid, as well as to the walls of the container.       

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PASCAL'S PRINCIPLE DEFINITION AND EXPLANATION

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PASCAL'S PRINCIPLE DEFINITION AND EXPLANATION

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Pascal's law  - Animated and explained with 3d program

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Gases exert a pressure because the gas particles exert a force when they bounce off objects.

Both cylinders have the same number of particles in - and both sets of particles are going the same speed. Particles in the small cylinder hit the walls more frequently as there is less distance for the particles to cross from the top to the bottom of the cylinder. More collisions means more pressure so the pressure is higher in the small container.

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Watch Atmospheric Pressure Savagely Crush A Steel Barrel

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Atmospheric Pressure

The pressure the air exerts at the surface of the Earth (at sea level) is about 101 325 Pa.
Our bodies have evolved to cope with that pressure, or we would be squashed.

Atmospheric Pressure is measured using a barometer – there are 2 main types:

Mercury barometer

Aneroid barometer

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A glass tube about 1 meter high, one end open and the other end sealed.

tube is filled with mercury and sits upside down in a container which also contains mercury.

the mercury level in the glass tube falls, creating a vacuum at the top.

The barometer works by balancing the weight of mercury in the glass tube against the atmospheric pressure.

If the weight of mercury is less than the atmospheric pressure, the mercury level in the glass tube rises.

If the weight of mercury is more than the atmospheric pressure, the mercury level falls.

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Aneroid Barometer
- has a vacuum chamber that expands or contracts with changes in air pressure.
- expansion/contraction causes a series of levers to pull on a chain that is connected to a spindle
- The spindle turns and moves the needle attached to it on the dial, showing the air pressure

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Physics Help : How Is Barometric Pressure Measured?

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Bourdon Tube pressure gauge working animation

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A manometer is an instrument that uses a column of liquid to measure pressure.  It cannot be used for very high pressures – a bourdon gauge is needed

Patm = Atmospheric pressure- value is given

Ph = Pressure due to liquid in the column
Ph = ρ x g x h

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CAN CRUSHING WITH AIR (refer to video earlier)

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CAN CRUSHING WITH AIR (refer to video earlier)

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CONSERVATION OF ENERGY THROUGH THE BERNOULLI EFFECT

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CONSERVATION OF ENERGY THROUGH THE BERNOULLI EFFECT

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Aërodynamic lift

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Center of Lift/Center of Pressure, Explained

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HYDRAULIC PRESS VS STEEL BALL COOLED IN LIQUID NITROGEN

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WHO WINS: HYDRAULIC PRESS OR STEEL BALL?

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WHO WINS: HYDRAULIC PRESS OR STEEL BALL?

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HYDRAULIC PRESS VS STEEL BALL COOLED IN LIQUID NITROGEN