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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
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?
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?
if you press the rubber sucker on a rough surface,it doesnot stick on surface why?
When we press a rubber sucker on a smooth surface,it sticks to the surface.Explain why this happens in about 30 words.
Explain why a balloon bursts if we blow too much air in it ????
How many types of forces are there?Explain them?
what is the difference between frictional force and gravitational force?
Applications of pressure in daily life
3-4 examples of solid pressure
deep sea divers wear special kind of suits. Why?
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?
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
Show That a liquid exerts pressure on the walls of the container
when does a force come into play
What is the SI unit of inertia and how it is measured?
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.
TWO OBJECTS,'A' AND 'B' , MASSES 10 KG AND 50 KG ,RESPECTIVELY ,ARE MOVING WITH THE SAME SPEED ALONG A STRAIGHT LINE . WHICH ONE WOULD NEED A GREATER FORCE TO STOP IT ? WHY ?
why it is easier to cut fruits with sharp knife rather than with the blunt knife
whi is it easier to walk rough surfaces than on smooth substances
why does a ball rolling along the ground stop after some time?
Why is it easier to move a box already in motion than to move a box at rest?
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?
Name the type of force involved in the following :
A sticker attached to a steel almirah without glue.
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.
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 ?
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?
Q: a force of 10N act on an area of 0.1m2. the force is kept the same but the area is reduced to half.which of this is true?
a) the pressurer does not change
b) the pressure reduces to half
c) the pressure increases by 1.5 times
d) the pressure doubles
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 ?
Define gravitational force.
what is force?explain the four effects of a force can produce giving relevant examples?
Mass of an object is the same all over the universe but the weight varies from place to place. Explain
What is Direct and Indirect force?
how does pressure due to liquid held in a container vary with,(a)depth (b) amount (c)shape and size of the container
explain why atmospheric pressure decreases as we go higher up above the earths surface
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