A piece of unknown material has an intricate shape. It has a mass of 126 g. You submerge it to find it displace 422 ml of water. What is the specific gravity of the piece.
0.30
3.35
1.26
0.53
An object is placed in a fluid. The buoyant force on the object is proportional to
The density of the object.
Density of the fluid
The volume of the object.
Both A and B
An object can float provided its _______ is ________ than the _______ of the liquid.
mass ,less ,mass
mass, greater ,density
density, less,density
density , less ,mass
What is the minimum mass needed for a spherical object with a 2 m radius to sink in an ocean whose water has a density of 1.1 × 10 kg/m3.
3.7 × 104kg
2.7 ×103 kg
7.4 ×103 kg
1.8 ×104kg.
A liquid has a specific gravity of 0.357. What is its density?
357 kg/m3
643 kg/m3
1000 kg/m3
3570 kg/m3
What is the specific Gravity of water at 4oC?
1.0×10o
1.0 × 101
1.0 x 102
1.0×103
In C.G.S. system, the unit of density is _______________.
pounds / cubic feet
grams / c.c.
kilogram / cubic meter
has no units
The buoyant force on an object submerged in a fluid depends on
The object’s density
The fluid’s density
The acceleration due to gravity
Both fluid’s density and acceleration due to gravity
The density of a submerged submarine is about the same as the density of
water
a crab
iron
a floating submarine
A boat with a density of 0.75 g/cc is floating in water. What percentage of the boat is floating above the surface of the water?
25%
75%
50%
None; the boat will actually sink.
