WorksheetsPressure
Total questions: 25
Worksheet time: 9mins
The earth is surrounded by the ______ up to a height of many many miles.
clouds
atmosphere
neither of them
The density of liquid can be measured by ________.
barometer
hydrometer
manometer
In the British system the practical unit for pressure is __________.
Pascal
Pound per square inch
millibar
1mmHg is equivalent to ______.
1.013x105 Pa
133Pa
760torr
The study of liquid at rest is called ______.
hydrostatics
thermodynamics
hydrodynamics
If the hydrometer floats higher, it indicates that the liquid has a ______ density.
smaller
higher
zero
Nose bleeding sometimes occurs at a place of ______ atmospheric pressure.
high
low
normal
The area of input piston must be ______ in hydraulic press.
smaller
larger
normal
For a body in equilibrium in a fluid, the upward thrust is equal to the _______ of body.
density
weight
mass
The net force acting on a body which is immersed in fluid, in upward direction is called ________.
elastic force
gravity
buoyant force
When an object is placed in a liquid of a lower density, the object ___________.
floats
sinks
rises up to the surface
The sensitive device used for measuring pressure relative to atmospheric pressure is a ________.
manometer
barometer
hydrometer
A 300N metal block has a volume of 0.01m3. When it is immersed in water, its apparent weight is ________.
100N
500N
200N
When you increase your depth under water, the water pressure on your body
increases
decreases
stays the same
How do you calculate Pressure?
Force(N)/Area(m2)
Force(kg)/Area(mi2)
Area(m2)/Force(N)
Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?
The design of this structure is stronger.
Water pressure increases with depth.
The cost of construction is lower.
Water pressure acts uniformly in all directions.
A fluid can be _______.
a gas
a liquid
a liquid or a gas
a solid
What happens to air pressure as you move upward into the atmosphere?
increases
decreases
stays the same
Density of air is greater ________.
at the top of the mountain
at the bottom of the mountain
at the center of the mountain
What pressure will be exerted by a 10 N box that has equal sides of 1 meter?
1 Pa
2 Pa
5 Pa
10 Pa
20 Pa
The unit of pressure used in medicine is ______.
mmHg
bar
Pa
The mass of water 3m3 is ________.
3000kg
300kg
300g
The unit of bar and millibar are used in _______.
medicine
meteorology
chemistry
Mercury barometer was invented by_______.
Edison
Torricelli
Newton
1 atm is equal to _______.
14.7 lb in-2
15.7 bar
1.01 bar
