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WHY IS FRICTION A NECESSARY EVIL ????
Give 3 differences between contact and non contact forces
ACTIVITY 11.8, ACTIVITY 11.9 , ACTIVITY 11.10
I WANT THE AIM,OBSERVATION AND CONCLUSION OF THESE ACTIVITIES
give some more examples of electrostatic force
what is the difference between frictional force and gravitational 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
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?
if you press the rubber sucker on a rough surface,it doesnot stick on surface why?
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.
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.
What was archimedes principal ?
why wooden slippers are kept below the railway tracks?
if the force applied is f and the velocity gained is v, then the power developed is
why school bags are provided with broad straps and not with thin straps?
How many types of forces are there?Explain them?
When we press a rubber sucker on a smooth surface,it sticks to the surface.Explain why this happens in about 30 words.
Applications of pressure in daily life
deep sea divers wear special kind of suits. Why?
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?
difference between electrostatic and magnetic force?
why do school bags have broad straps?
snow shoes are more effective for walking on snow than odinary shoes. why?
Show That a liquid exerts pressure on the walls of the container
Why are caterpillar tracks used in battle tanks instead of tyre
Why does a fountain pen start leaking at higher altitudes?
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.
What is the SI unit of inertia and how it is measured?
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
why does a ball rolling along the ground stop after some time?
What is Direct and Indirect force?
when does a force come into play
snow shoes are more effective for walking on snow than ordinary shoes, why? give me answer in breif plzz
If you use a stick to push an object, the muscular force acting on the object is a non contact force since your body is not in contact with the object. True or False? Explain.
why are the dams made thicker at the bottom??
what is force?
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.
I dont understood the formula P=Pa+pgh and its derivation
why is the foundation of a building wider than its wall?
write an activity to show that liquid pressure depends on its depth
Where is the pressure due to water higher
In sea, near base or at top
how can liquids exert equal pressure at the same depth ?
Explain why a balloon bursts if we blow too much air in it ????
why do heavy vehicles have broad tyres?
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 non contact and contact force ? example
why divers, spacemen, and mountaineers have to wear special suits? explain.
What is the difference between inertia and friction ?
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 force?explain the four effects of a force can produce giving relevant examples?
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.
why do you think it is necessary to define a separate quantity called pressure?why is defining only force not enough?
pls i need the ans fast .pls pls pls pls pls
Define gravitational force.
explain why a heavy truck is fitted with 6 to 8 wheels
how does pressure due to liquid held in a container vary with,(a)depth (b) amount (c)shape and size of the container
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