Two identical glass beakers are filled to the top with water (A) and oil (B). A
ID: 1616997 • Letter: T
Question
Two identical glass beakers are filled to the top with water (A) and oil (B).
A wooden cube is placed initially in beaker A splilling water over the top.
The wooden cube is then carefully removed from beaker A and placed in beaker B spilling oil over the top.
If the wooden block floats in both the water and the oil then....
HINT: viscosity and density are not the same thing, oil floats on water.
Two identical glass beakers are filled to the top with water (A) and oil (B).
A wooden cube is placed initially in beaker A splilling water over the top.
This spilt water is collected and its volume measured ( ).
The wooden cube is then carefully removed from beaker A and placed in beaker B spilling oil over the top.
The spilt oil is collected and its volume measured ( ).
If the wooden block floats in both the water and the oil then....
Explanation / Answer
In A
buoyancy forc Fb = rho_w*VA*g = W
In B
buoyancy force Fb = rho_oil*VB*g = W
therefore
rho_w*VA*g = rho_oil*VB*g
rho_w*VA = rho_oil*VB
VA/vB = rho_oil/rho_w
since density of oil < density of water
vA < vB
option C
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