Pour water in the small beaker and bowl to the same level. Measure the height of

Question

Pour water in the small beaker and bowl to the same level. Measure the height of the object in meters, ho = 0.005 m. Immerse the object into the water. Measure the distance of the water surface to the top of the block, h1 = 0.0289.

(1) The pressure at any point within a liquid is a sum of the atmospheric pressure on the surface (Pa = Ps = 1.013 x 105 Pa) of the liquid and the pressure at the depth of the water the object is (P). We can express this mathematically as P = Pa + Ph. Recall the general definition of pressure in case 1 above. For hydrostatic pressure, Ph = , where ?w is the density of water. The diagram in figure 1c closely describes the situation of our block. The distance d corresponds to our h1, P1 represents the pressure at the top of our block, and P2 represents the pressure at the bottom of our block. From all the information given, construct a relationship that can give us P2, the hydrostatic pressure at the bottom of the block in both containers.

Knowledge Construction Questions

(A) From your result in (1), what can we say about the hydrostatic pressure at the bottom of the block in both containers? Would the result be different if you were to put the block in a lake with the same level of water?

(B) What conclusion can we make about what hydrostatic pressure depends on?

Explanation / Answer

A)the hydrostatic pressure wil be the same in both the containers

B)conclusion can be drawn that hydrostatic pressure depends only on the height of liquid columm and not on the shape of the vessel

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