Question

1. Describe the concept of buoyancy. Draw a sketch to support your answer.

2. By hanging a common metal sample from a balance, you find that the sample has a true mass of 100.0 g and an apparent mass in water of 88.8 g. What is its specific gravity? 3.Consider the same metal sample in the previous question. If its apparent mass in an unknown fluid is 85.9 g, what is the specific gravity of the fluid?

4.Consider a sinker tied to a common piece of wood (of mass = 15.0 g). If an apparent mass of 80.0 g is read (sinker below water, wood above water) and an apparent mass of 62.0 g is read (both sinker and wood below water), what is the specific gravity of the wood?

Answer 1