WorksheetsUpthrust In liquids
Total questions: 20
Worksheet time: 14mins
A 3.80-kg aluminum ball has an apparent mass of 2.10 kg when submerged in a particular liquid. The density of the liquid is:
2185.7 kg/m3
0.44 kg/m3
1207.9 kg/m3
0.81 kg/m3
An iron anchor weighs 1112.06 N in air. If it is immersed in sea water, how much force would be required to lift it while it is immersed?
1112 N
900.2 N
965.9 N
952.6 N
A cube of iron 0.300 m on a side is suspended (in equilibrium) from a rope in a giant tank of water. What is the tension in the rope?
1720N
1600 N
1552 N
1810N
upthrust offered by the liquid is 300 N and the weight of the object is 1000 N, what is its apparent weight
1000 N
700 N
7000 N
1300 N
There are 24 cm3 Find the total mass.
Why does the egg not sink or float?
it is more dense than the water
it is less dense than the water
it has the same density as the water
it is light
Relative density is
force per unit area
mass per unit volume
the ratio of density of substance to the density of water
mass per unit acceleration
A woman has 4 type of shoes. Which will exert the greatest pressure on the ground when she wears them?
Oil has a density of 824 kg/m3. Work out its relative density.
0.0824
0.824
8.24
82.4
Law of floatation states
The weight of a floatation body is equal to the weight of the liquid displaced
the center of gravity of a floating body and the center of buoyancy are a different lines
Both
A buoyant force of 200 g wt. acts on a body dipped completely in water. If the apparent weight of body is 100 g wt., then its actual weight is
200gwt
100gwt
300gwt
none of the above
A wooden block of dimensions 10cm X 20cm X 50cm weighs 6.5kg. Calculate the density of the block.
650 kg/m3
65kg/m3
6.5kg/m3
none of the above
