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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
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 ?
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 ?
why wooden slippers are kept below the railway tracks?
why school bags are provided with broad straps and not with thin straps?
Mass of an object is the same all over the universe but the weight varies from place to place. Explain
When we press a rubber sucker on a smooth surface,it sticks to the surface.Explain why this happens in about 30 words.
3-4 examples of solid pressure
How many types of forces are there?Explain them?
if you press the rubber sucker on a rough surface,it doesnot stick on surface why?
Applications of pressure in daily life
State 5 effects of contact force.
deep sea divers wear special kind of suits. Why?
why is it harder to lift a glued object on surface with respect to the situation when it is not glued
difference between electrostatic and magnetic force?
A Cube Of Side 'x' Rests On The Floor.Given That The Pressure Exerted By This Cube On The Floor Is P What Is The Pressure Exerted By Another Cube Of The Same Material Of Side 4x?(Take g = 10Nkg-1)Assume That Both Are In Same Position
Please Help Its Urgent
why do school bags have broad straps?
if several forces act on a body in different directions in which direction the body will move
snow shoes are more effective for walking on snow than odinary shoes. why?
Pressure in liquids depends upon ---------- and ---------- .
Show That a liquid exerts pressure on the walls of the container
What is the SI unit of inertia and how it is measured?
why is it comfortable to lift a school bag with broad straps than thin sraps
Why are caterpillar tracks used in battle tanks instead of tyre
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
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 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
ACTIVITY 11.8, ACTIVITY 11.9 , ACTIVITY 11.10
I WANT THE AIM,OBSERVATION AND CONCLUSION OF THESE ACTIVITIES
A cube of edge 2 cm and mass 10 g is placed on the surface of a table.
What is the pressure exerted by the cube on the table?
why does a ball rolling along the ground stop after some time?
Why do skiers use flat and long skies to slide on the snow
snow shoes are more effective for walking on snow than ordinary shoes, why? give me answer in breif plzz
The force which is exerted by all matter on all other matter is .................
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.
women are advised not to wear high heeled shoes.give reasons
write an activity to show that liquid pressure depends on its depth
name the force used in removing iron scrap from a heap of mixed scrap
why is the foundation of a building wider than its wall?
how can liquids exert equal pressure at the same depth ?
why do heavy vehicles have broad tyres?
whi is it easier to walk rough surfaces than on smooth substances
what is a contact force ? what does it explain in the topic
what is non contact and contact force ? example
what is the difference between frictional force and gravitational force?
When is the pressure on the ground more-when a man is lying or when a man is standing. Explain?
when does a force come into play
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.
What is the difference between inertia and friction ?
give two examples from everyday life for the force of push and its effects
Define gravitational force.
what is force?explain the four effects of a force can produce giving relevant examples?
a man weight 60kg stands on a wooden blank 1meter long and 40 cm wide find the pressure exerted by man on ground
how does pressure due to liquid held in a container vary with,(a)depth (b) amount (c)shape and size of the container
What happens to the air in the bicycle tube when it has a puncture?
What is Direct and Indirect force?
In a car accident, a seat belt helps prevent injuries by applying a force:
(1) less than the force of the moving passenger
(2) greater than the force of the moving car
(3) in the same direction as the cars motion
(4) in the opposite direction of the passengers motion
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