Specific gravity bottle is used to determine
Relative density of a liquid
Mass
Weight of materials
Temperature of a liquid
Practical applications of convectional current is/are
ventilators constructed at top of the walls
cooling unit in a fridge is fitted at the top
Air conditioner in a room at some height
All of these
Unit of relative density is
g cm-3
g cm2
g m-3
No unit
1kgf =
1 N
105 dyne
10 N
None of these
The density of a substance is 2.7 g/cm3. Find the mass of the block of this substance having volume 100 cm3?
0.27g
2700g
270g
2.7g
Relative density is the ratio of the density of the substance to the density of water at
0°C
1°C
5°C
4°C
The S.I unit of mass
Kilogram
Newton
Newton - Meter
Gram
Hot air and hot liquid has the tendency to rise up, this is called
Convection
Radiation
Induction
Density = ?
Mass x Volume
Mass x Volume x g
Cork floats in water, because
Water has high melting point
Cork has more density than water
Cork has less density than water
Volume of cork is very small
