Advertisements
Advertisements
Question
Select the correct option:
The ratio between the mass of a substance and the mass of an equal volume of water at 4°C is called:
Options
relative density
density
weight
pressure
Solution
relative density
APPEARS IN
RELATED QUESTIONS
A body held completely immersed inside a liquid experiences two forces:
(i) F1, the force due to gravity and
(ii) F2, the buoyant force.
Draw a diagram showing the direction of these forces acting on the body and state the condition when the body will float or sink.
A piece of brass weighs 175 gf in air and 150 gf when fully submerged in water. The density of water is 1.0 g cm-3.
(i) What is the volume of the brass piece? (ii) Why does the brass piece weigh less in water?
A jeweller claims that he makes ornaments of pure gold that has a relative density of 19.3. He sells a bangle weighing 25.25 gf to a person. The clever customer weighs the bangle when immersed in water and finds that it weighs 23.075 gf in water. With the help of suitable calculations, find out whether the ornament is made of pure gold or not.
[Hint : calculate R.D. of material of bangle which comes out to be 11.6].
A body floats in a liquid with a part of it submerged inside the liquid. Is the weight of floating body greater than, equal to or less than the upthrust?
A loaded cargo ship sails from sea water to river water. State and Explain your observations.
Explain the following :
As a ship in harbour is being unloaded, it slowly rises higher in water.
Explain the following :
A ship submerges more as it sails from sea water to river water.
A block of wood of mass 24 kg floats on water. The volume of wood is 0.032 m3. Find:
- the volume of block below the surface of water,
- the density of wood.
(Density of water = 1000 kg m−3)
Write the SI units of Relative density
