PROCEDURE: Fill the kitchen dish halfway to the brim. Let the water settle down, ensuring that the surface of the water in the dish is still, and undisturbed. Place the small floater onto the water and let it float. Hold the pebble 10 cm above the centre of the dish (use the ruler for the height). Drop the pebble into the water in the dish. Observe and record your observations under Results. 1. As a result of step 5, what did you observe? 2. What created the wave on the water surface as observed? 3. Describe the motion of the floater in relation to the direction of the wave.
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.
PROCEDURE:
Fill the kitchen dish halfway to the brim. Let the water settle down, ensuring that the surface of the water in the dish is still, and undisturbed.
Place the small floater onto the water and let it float.
Hold the pebble 10 cm above the centre of the dish (use the ruler for the height).
Drop the pebble into the water in the dish.
Observe and record your observations under Results.
1. As a result of step 5, what did you observe?
2. What created the wave on the water surface as observed?
3. Describe the motion of the floater in relation to the direction of the wave.
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