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Can anyone list 10 advantages and disadvantages of friction?
Arrange in ascending order-
Rolling friction; Sliding friction; Static friction; Kinetic friction; Fluid friction
give 10 examples of friction in our daily life.
What are the methods of reducing friction? Explain .
why does rough surface have greater friction then smooth surface?
IS rolling friction more than sliding friction? true or false
What are the problems faced by people living in desert areas?
explain why sliding friction is less than static friction?
why do gymnasts apply a coarse substance to their hands
write various techniques adopted by human beings to reduce energy losses due to friction
What is a streamlined body? How is it helpful for a body to have such a shape?
Explain Friction as necessary evil?
can u solve this riddle:
In some situations, I oppose the motion in other situation, I facilitate the motion but, i always oppose the relative motion between two moving surfaces. put some lubricant, and i become small there. Make the moving surfaces rough i make the movement tough. I may be- static, sliding or rolling but whenever two surfaces are in motion I am always there, Tell me who I am!!!!
friction a necessary evil
IMAGINE THAT FRICTION SUDDENLY VANISHES. HOW WOULD LIFE BE AFFECTED. LIST TEN SUCH SITUATIONS
give three examples of increase and decrease friction.
WHAT ARE THE CHEMICALS PRESENT IN MATCHSTICK?
give example to show that friction is both a friend and a foe?
60g of ice at 0°C is added to 20g of water at 40°. The final temperature attained by the mixture is (given
Why is rolling friction less than sliding friction??
Explain Why, it is easier to drag a mat on floor when nobody is sitting on it but much more difficult to drag the same mat when a person is sitting on it.
What are the differences between sliding and rolling friction ? ...(atleast 3)
A coin of mass 20 g is pushed on a table. The coin starts moving at a speed of 25 cm/s and stops in 5 seconds. Find the force of friction exerted by the table on the coin.
Explain why the sole of our shoe wear out.
why is 'static friction'called a self adjusting force?
how 2 make webpages on pollution i jst need d HTML code plzz
how does friction helps us in walking?
Water comes out more slowly from upstairs tap than from a similar
why spaceships are provided with heat shields
What role does friction play in the sport of your choice?
what will happen if friction suddenly vanishes from our life
How is a nail fixed in the wall due to friction?
why is rolling friction less than sliding friction?
Why do we sprinkle fine powder on the carom board while playing?
Why few drops of oil are poured on the hinges of the door?
mention three effects (consequences) of friction.
an object rests on a horizontal frictionless surface . A horizontal force of magnitude F is applied.This force produces an accleration:
A) only if F is larger than the weight of the object.
B) only while the object suddenly changes from rest to motion.
D) only if the inertia of the object decreases
is friction a friend or foe?
A car travels a certain distance with a speed of 50 km/hr and returns with a speed of 40 km/hr. Calculate the averagespeed for whole journey.
'When we walk, we press the ground in the backward direction, using our feet. Since friction acts in the opposite direction of motion, it pushes us forward. Hence, we are able to walk.'I dont understand this.. explain???
GIVE REASON WHY POWDER IS SPRINKLED ON THE CARROM BOARD
Is there any difference between friction and frictional force?
what is streamlining ??
why do we slip while stepping on a banana peel?
if you try to hold a glass with oil on your hands it tends to slip.why?
Why are the worn out tyres discarded?
why do painters use sand paper before painting the doors??
Why is friction called a perverse force ?
imagine thet friction suddenly vanishes,how would life be affected.list ten such situation
What role does friction play in the sport of your choice? Collect some pictures of that sport in action where friction is either supporting it or opposing it. Display these pictures with proper captions on the bulletin board of your classroom
explain why the handles of motor cyclenr covered with a rubber sheet with spikes????
When a pencil cell is released from a certain point on an inclined wooden board, it travels
on what principle do ball bearings work
A weightlifter rubs powder in the hands before lifting a weight so as to increase the amount of friction in between the hands and the rod. This helps the lifter to have a better grip on the rod.
How can the amount of friction increase if powder is applied? Isnt it a lubricant?
kabaddi players rub thier hands with the soil before the game starts
Why do painter uses and paper in white washing the walls and in polishing doors?
why are grooves provided in the soles of shoes
What do you mean by streamlined shape? How does it help in the motion of vehicles.
Why does the sportsmen use shoes with spikes?
Give two examples where friction is (a) Useful (b) A nuisance.
Why friction is a necessary evil?
why are the bodies of birds streamlined
A labourer has to push a heavy truck. What should be done to reduce his effort in pushing it and why?
(a) rollers are used for transporting luggage.
(b) metal chains are wrapped on tyres when they run on icy roads.
(c) aeroplanes and car bodies, are made more pointed along their fronts.
(d) talcum powder is put on a carrom-board before a game.
how does friction acts when we are writing with a chalk in blackboard?
Why do spaceships are provided with heat shield?
WHY DO WE SLIP ON A MUDDY ROAD AND WHEN WE STEP ON A BANANA PEEL?
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