Difference between bucket on chair and bucket on floor (difference in height): 20inches Inner diameter of hose: 5/8 inches Time it took for one measuring cup to be full: 5.5seconds Fill one bucket full with water and place it on a chair, bench, or table. Place the empty bucket on the floor. Submerge one end of the hose in the bucket with water and hold then end of the hose down at the bottom of the bucket. You may want to hold the hose under water with a brick or other heavy object. Place the other side of the hose in the empty bucket below. Note how the hose first goes up and over the rim of the top bucket before dropping down into the second bucket positioned on the ground. Now pull out the end of the hose from the empty bucket, suck on the one end of the hose for a few seconds and place the end of the hose back in the empty bucket. If water doesn’t begin to flow after a few seconds, repeat but suck for 1 to 2 seconds longer. Repeat until water begins to flow. Use Bernoulli’s equation to determine how fast water should be flowing from the hose (difference in height) (20inches). Measure the inner diameter of the hose (5/8 inches) and calculate the volume per unit time that is flowing through the hose. While water is flowing lift the hose out of the lower bucket and hold it over the measuring cup. Determine how long it takes for the measuring cup to fill up (5.5 seconds).
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
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