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15 questions
The earth is surrounded by the ......... up to a height of many miles
water
soil
air
atmosphere
The atmosphere consists of gases which has no weight
true
false
The SI unit of pressure is the ...........
1 pascal is equivalent to a force of ...................
1 Nm-2
1 Nm
1 Nm2
1 Nm-1
The atmospheric pressure changes according to locality and .......... .
places
times
weather
The atmospheric pressure at the plains is .......... that at the hilly regions .
lower than
equal to
higher than
Nose bleeding will occur at a place of ........... atmospheric pressure .
low
high
A pressure of .............. mm Hg is known as standard atmospheric pressure or 1 atmosphere (1 atm).
Two simple applications of atmospheric pressure in our daily life are ............. and syringe.
When bodies are immersed in a liquid there is loss in .............. .
The weight of liquid column depends on the base area of container .
true
false
The pressure on the bottom of an object is ........... the top.
equal to
less than
greater than
If you want to know the density of liquid, which instrument do you use?
A body will float in a fluid if the upward thrust acting on it equals its _____.
weight
mass
volume
____________ can be applied in checking the purity of metals.
Archimedes’ principle
Pascal’s law
Hooke’s law
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