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WHY IS FRICTION A NECESSARY EVIL ????
Give 3 differences between contact and non contact forces
give some more examples of electrostatic force
why do mountaineers usually suffer from nose bleeding at high altitude
If The Momentum Is Increased By 50% Then Kinetic Energy changes by
What is the full form of SCIENCE
Explain why a balloon bursts if we blow too much air in it ????
1-Why buses and trucks have double wheels at the back? 2-Why poters place a round piece of cloth on their heads? 3-Why dams are made stronger and thicker at the bottom than the top? 4-Why the pressure inside an aeroplane is maintained at normal ground level atmospheric pressure?
why do porters put cloth on their head while carrying heavy loads?
The second's hand of a watch is 2cm long, the speed of the tip of this hand is
A. 0.21 cm/s B. 2.1 cm/s C. 21.0 cm/s
I think we can solve this question by calculating angular velocity.
What was archimedes principal ?
what is the difference between frictional force and gravitational force?
why wooden slippers are kept below the railway tracks?
why school bags are provided with broad straps and not with thin straps?
When we press a rubber sucker on a smooth surface,it sticks to the surface.Explain why this happens in about 30 words.
How many types of forces are there?Explain them?
a magnet attracts a piece of iron towards it. is attraction also a pull? what about repulsion between similar poles of two magnets ? is it a pull or push ?
if you press the rubber sucker on a rough surface,it doesnot stick on surface why?
a car is moving towards north what will be the direction of force of friction acting on this car due to the surface of the road
Applications of pressure in daily life
deep sea divers wear special kind of suits. Why?
Why is it easier to hammer a sharp nail into wood than a blunt one ?
difference between electrostatic and magnetic force?
What happens to the air in the bicycle tube when it has a puncture?
why do school bags have broad straps?
a tin weighing 8 N rests on table top of dimension 10 cm * 10 cm calculate the pressure exherted by tin ?
snow shoes are more effective for walking on snow than odinary shoes. why?
If a body is moving with uniform speed in a particular direction on a perfectly smooth surface, then no force is acting on it. True or False? Explain.
Show That a liquid exerts pressure on the walls of the container
What is the SI unit of inertia and how it is measured?
Your Physics Book has a mass of 400 g. It is kept on a horizontal table. Taking g = 10 m/s2, find the force (both magnitude and direction) exerted by
(a) the table on the Physics book (b) the Physics book on the table (c) the earth on the Physics book (d) the Physics book on the earth.
Why are caterpillar tracks used in battle tanks instead of tyre
3-4 examples of solid pressure
A force of 4N acts on a body of mass 2kg for 4s. Assuming the body to be initially at rest, find
a) its velocity when the force stops acting.
b) the distance covered in 10s after the force starts acting.
why it is easier to cut fruits with sharp knife rather than with the blunt knife
women are advised not to wear high heeled shoes.give reasons
Why it is easier to cut vegetables with a sharp knife ...and difficult with a blunt knife ...???
whats the logic ....i need scientific reason ...... it is asociated with the CH- 11 Force And Pressure
If the area of my head is 15 into 15cm then how much weight of air would I carry on my head?
ACTIVITY 11.8, ACTIVITY 11.9 , ACTIVITY 11.10
I WANT THE AIM,OBSERVATION AND CONCLUSION OF THESE ACTIVITIES
we know that there is a huge amount of atmospheric pressure on us but we do not experience its effect why ?
why does a ball rolling along the ground stop after some time?
snow shoes are more effective for walking on snow than ordinary shoes, why? give me answer in breif plzz
why are the dams made thicker at the bottom??
what is atmospheric pressure?
has been fired upwards to launch a satellite in its orbit. Name the
two forces acting on the rocket immediately after leaving the
what are the examples of muscular, friction, magnetic, electrostatic, gravitational force and pressure.
Why do skiers use flat and long skies to slide on the snow
write an activity to show that liquid pressure depends on its depth
Pressure in liquids depends upon ---------- and ---------- .
why is the foundation of a building wider than its wall?
why is it comfortable to lift a school bag with broad straps than thin sraps
how can liquids exert equal pressure at the same depth ?
why do heavy vehicles have broad tyres?
We hammer the broader side of nail and not its sharp end to put it in wood. Why?
what is non contact and contact force ? example
Pressure in solids depends upon --------- and -------- .
When is the pressure on the ground more-when a man is lying or when a man is standing. Explain?
A boy is wearing a shirt of mass 150 g. How much force is he exerting on the dress? Do not forget to state the direction.
is flying a kite a pull, or push or both?
What is the difference between inertia and friction ?
Define gravitational force.
what is force?explain the four effects of a force can produce giving relevant examples?
how does pressure due to liquid held in a container vary with,(a)depth (b) amount (c)shape and size of the container
What is Direct and Indirect force?
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