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describe an experiment to show that a liquid exerts pressure :
a.at the bottom of the container
c.in all directions
what are the advantages of aneroid barometer over a simple barometer?
Question 4: What are the factors on which liquid pressure depends?
Question 1: Define buoyant force.
Question 2: State the value of normal atmospheric pressure.
Question 3: Why do fountain pens start leaking at high altitude?
WHAT IS THE DIFFERENCE BETWEEN UPSTROKE AND DOWNSTROKE MECHANISM OF A LIFT PUMP?
define radiation ?
Why does a ship float in water but why does an iron nail sink in water
a balloon collapses when air is removed from it.why?
what is cohesion and adhesion
How does an ink dropper work?
how does the water pressure on a diver changes if:
a.he moves horizontally?
b.he moves to a greater depth?
it is easier to lift a stone in water than in air.explain.
A solid object weighing 5kg in air, weighs 4kg in kerosene. Find (a) its volume and (b) its density
why do deep- sea divers need special protective suits?
how does the liquid pressure depend upon
i)acceleration due to gravity
ii)volume of the liquid
how does the water pressure on a diver changes if
a.he moves horizontally ?
give reason for each of the following:
a.if we stand on one leg on sand ,we sink more
b.dams and tall-buildings are made broader at the bottom
c.a balloon collapses when air is removed from it
d.in a fountain pen,ink does not run out by its own
list four factors on which liquid pressure depends .
if we stand on one leg on sand,we sink more as compared to when we stand on both the legs on sand.give reason
What Type of Waves are produced by a motor boat sailing in Water?
a piece of cork ,when left inside water ,comes to the surface.explain
a piece of iron weighs 44.5gf in air, 39.5gf in water 40.3gf in parrafin oil. find density of iron density of paraffin oil.
a solid of density 5000kgm3 weighs 0.5kgf in air. if it floats in a liquid of density 8000kgm3, what is its apparent weight?
Please Explain Me the working of the Lift Pump with Diagram? But I don't want to know about the airlift pump which uses compressed air. I want the other one.
what is the story of archimedes ? i need a detail answer.
1) why does a can burst if it is .heated,sealed and cooled suddenly.explain detailly please.
2)perfume sprayed in one corner of the room can be smelt from another corner
what happens to atmospheric pressure as we go higher?
why does our body not feel the enormous atmospheric pressure?
a force of 200 N acts on an area of 0.02 m square.find the pressure in pascal
in a fountain pen,ink does not run out by its own.why?
dams and tall- buildings are made broader in d bottom.
what is the unit of surface tension?
A jet aircraft is flying at an altitude of 9000 m . What will be the pressure of air around it? Please explain units also.
why is hearing effected while coming down from hills
How is the density of the body directly proportional to buoyant force?
what is surface tension?explain in one sentence.
do liquids transmit pressure equally in different directions?
a beginner learning swimming uses an inflated rubber tube.give reason.
Did not understand the examples given under "Application of Archimedes' Principle". Please explain.
Is the Kinetic theory of matter same for all states of matter? If so, then in the chapter More About Solids Liquids and gases, why does it mention the points of the kinetic theory as Kinetic Theory of Gases?
an iron piece floats on mercury ,but sinks in water .give reason.
describe an experiment to shw that a liquid exerts pressure:
a.at a bottom of the container
A TV tower is 40 m high , A mass of 5kg is dropped from its top. calculate the potential energy at the top and kinetic energy just before it hits the ground .
can i get some numericals based on archimedes principal and buoyancy.
please even show the soluion
mercury is used in a barometer instead of water.give reason.
more is the volume of the body immersed ,more is the upthrust.give reason.
why is it easier to lift a stone in water than in air.explain
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