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WHY IS FRICTION A NECESSARY EVIL ????
what is the difference between frictional force and gravitational force?
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
Explain why a balloon bursts if we blow too much air in it ????
If The Momentum Is Increased By 50% Then Kinetic Energy changes by
What is the full form of SCIENCE
a man weight 60kg stands on a wooden blank 1meter long and 40 cm wide find the pressure exerted by man on ground
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?
Which type of force acts when we twist wet clothes to squeeze out water ?
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 ?
If a piece of rock is brought from the moon to the Earth, its
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.
why do skiers use flat and broad skin?
How many types of forces are there?Explain them?
when does a force come into play
if you press the rubber sucker on a rough surface,it doesnot stick on surface why?
Applications of pressure in daily life
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
deep sea divers wear special kind of suits. Why?
What is the SI unit of inertia and how it is measured?
difference between electrostatic and magnetic force?
why do school bags have broad straps?
why are nails made very thinat one end and somewhat thick at the other ?
what happens if two forces applied on a body in opposite direction ?
difference between mass and weight?
snow shoes are more effective for walking on snow than odinary shoes. why?
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
what is the principle involved in a rubber sucker?pls answer quickly.
Show That a liquid exerts pressure on the walls of the container
What happens when you press a rubber ball placed on a table?
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
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
give two examples from everyday life for the force of push and its effects
ACTIVITY 11.8, ACTIVITY 11.9 , ACTIVITY 11.10
I WANT THE AIM,OBSERVATION AND CONCLUSION OF THESE ACTIVITIES
Define gravitational force.
why does a ball rolling along the ground stop after some time?
Why is it easier to hammer a sharp nail into wood than a blunt one ?
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
flying a kite is push or pull?
what are the examples of muscular, friction, magnetic, electrostatic, gravitational force and pressure.
write an activity to show that liquid pressure depends on its depth
why is the foundation of a building wider than its wall?
how can liquids exert equal pressure at the same depth ?
Two forces P and Q act on an objeact in the same direction and P > Q. The net force on the object is ____________
why do heavy vehicles have broad tyres?
what is non contact and contact force ? example
When is the pressure on the ground more-when a man is lying or when a man is standing. Explain?
WHEN SOME WAYER IS FILLED INA VERTICALLY KEPT U-Shaped OPEN ENDED GLASS TUBE , IT WAS FOUND THAT WATER LEVEL IN BOTH ARMS IS SAME.TELL THE REASON
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 ?
describe three effects of force with appropriate examples
please answer fast
how many objects should be present for a force to come into play ?
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
let us take a container containing air in it. we increase the pressure on air in the container at the east end . the pressure is transmitted in
A . West direction
B. North direction
C. South direction
D. Equally in all directions
What is Direct and Indirect force?
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