Select Board & Class
WHY IS FRICTION A NECESSARY EVIL ????
Give 3 differences between contact and non contact forces
give some more examples of electrostatic force
A gun weighing 4 kg fires a bullet with a velocity 50 m/s. If the weight of the bullet is 15 g, find the recoil velocity of the gun.
why do mountaineers usually suffer from nose bleeding at high altitude
A man is pushing a heavy trunk on the floor. Finding it difficult, he turns the trunk vertically. Will he need less effort now?
If The Momentum Is Increased By 50% Then Kinetic Energy changes by
What is the full form of SCIENCE
women are advised not to wear high heeled shoes.give reasons
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?
3-4 examples of solid pressure
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.
A man exerts a pressure of 14Pa by applying a force of 70N on a box. Calculate the area over which the force is applied.
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?
what is the difference between frictional force and gravitational force?
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?
if you press the rubber sucker on a rough surface,it doesnot stick on surface why?
Applications of pressure in daily life
Q1: if force acts on a body it will move in the direction in which the force acts. true/ false?
Q2: does a force acting on a body always cause a change in its state of motion?
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?
Explain why a balloon bursts if we blow too much air in it ????
Show That a liquid exerts pressure on the walls of the container
a} the surface area of the end of a brick is 50 cm square. it exertsa force of 50 N . What pressure is exerted on the ground by the brick ?
b} if the brick is replaced by a block of wood how would the pressure be affected ? Justify your answer.
it was not a problem to solve the a part but i'm confused for the b part. Please solve my query.
What is the SI unit of inertia and how it is measured?
why is it harder to lift a glued object on surface with respect to the situation when it is not glued
Why are caterpillar tracks used in battle tanks instead of tyre
a force of 16n acts on an area of 50cm.calculate the pressure. what is the answer???
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.
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 it is easier to cut fruits with sharp knife rather than with the blunt knife
What is the difference between inertia and friction ?
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
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
ACTIVITY 11.8, ACTIVITY 11.9 , ACTIVITY 11.10
I WANT THE AIM,OBSERVATION AND CONCLUSION OF THESE ACTIVITIES
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
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
what are the examples of muscular, friction, magnetic, electrostatic, gravitational force and pressure.
Pressure in solids depends upon --------- and -------- .
write an activity to show that liquid pressure depends on its depth
why is the foundation of a building wider than its wall?
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 ?
how can liquids exert equal pressure at the same depth ?
a hollow spherical ball is completely filled with water. But due to leakage , water continously flows out of it and finally no water is left in the ball. Discuss the position of cenetr of gravity as the water leaks out
why do heavy vehicles have broad tyres?
why divers, spacemen, and mountaineers have to wear special suits? explain.
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?
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.
The force which is exerted by all matter on all other matter is .................
we know that there is a huge amount of atmospheric pressure on us but we do not experience its effect why ?
Define gravitational force.
flying a kite is push or pull?
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
A CAR IS MOVING AT UNIFORM SPEED OF 50 KM / HR ON A STRAIGHT ROAD . WHICH FORCES ARE ACTING ON THE CAR ? ARE THIS FORCES BALANCING EACH OTHER ? IF ONE OF THE FORCE INCREASES WHAT COULD BE THE POSSIBLE RESULTS ?
What is Direct and Indirect force?
Why is it easier to hammer a sharp nail into wood than a blunt one ?
Copyright © 2021 Aakash EduTech Pvt. Ltd. All rights reserved.
E.g: 9876543210, 01112345678
We will give you a call shortly, Thank You
Office hours: 9:00 am to 9:00 pm IST (7 days a week)