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Can anyone list 10 advantages and disadvantages of friction?
why does rough surface have greater friction then smooth surface?
give 10 examples of friction in our daily life.
What are the methods of reducing friction? Explain .
What is the difference between force and friction?
What are the problems faced by people living in desert areas?
Water comes out more slowly from upstairs tap than from a similar
explain why sliding friction is less than static friction?
write various techniques adopted by human beings to reduce energy losses due to friction
Arrange in ascending order-
Rolling friction; Sliding friction; Static friction; Kinetic friction; Fluid friction
Explain Friction as necessary evil?
why do gymnasts apply a coarse substance to their hands
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.
Pls explain this:
To hold a glass of water, friction is necessary. Due to friction present between our fingers and the outer surface of the glass, we are able to grip the glass of water. If there was no friction present, it would not be possible to hold it.
WHAT ARE THE CHEMICALS PRESENT IN MATCHSTICK?
what is streamlining ??
give example to show that friction is both a friend and a foe?
What role does friction play in the sport of your choice?
Why is rolling friction less than sliding friction??
What are the differences between sliding and rolling friction ? ...(atleast 3)
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!!!!
Explain why the sole of our shoe wear out.
'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???
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?
why spaceships are provided with heat shields
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
What is a streamlined body? How is it helpful for a body to have such a shape?
what will happen if friction suddenly vanishes from our life
why is rolling friction less than sliding friction?
What is the relationship among (a) magnitude of friction and the weight of a body, (b) friction and nature of surfacesin contact with each other, (c) friction and the area of the surfaces in contact with each other?
Why do we sprinkle fine powder on the carom board while playing?
a ball moving on a horizontal surface stops after sometime without applying any force.why
mention three effects (consequences) of friction.
while drawing a line on a paper,friction force acts on paper in the same direction along which line was drawn on the paper.
It says in the answer key that it is true.pls explain how
is friction a friend or foe?
Why lubricants are used in machines?
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.
GIVE REASON WHY POWDER IS SPRINKLED ON THE CARROM BOARD
why do we slip while stepping on a banana peel?
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?
Why are the worn out tyres discarded?
A car of mass 1200 kg is moving on the road at the speed of 60 km/h.If the coefficient of friction is 38 and the normal force is 50 N, then how can I find the frictional force acting on it?
why do painters use sand paper before painting the doors??
imagine thet friction suddenly vanishes,how would life be affected.list ten such situation
why metal chains are wrapped on tyres when they run on icy roads ?
explain why the handles of motor cyclenr covered with a rubber sheet with spikes????
on what principle do ball bearings work
Why is friction called a perverse force ?
kabaddi players rub thier hands with the soil before the game starts
A box of the mass 40 kg is kept on a floor. Sanjay is trying to push it from the left and Harsh is trying to push it from the right. The force exerted by them are 25 N and 35 N respectively. However, the box remains stationary on the floor. Find the force of friction acting on the box.
name all law of newton fast
why are grooves provided in the soles of shoes
Why does the sportsmen use shoes with spikes?
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
Give two examples where friction is (a) Useful (b) A nuisance.
what is regular and irregular surface ?
Why friction is a necessary evil?
why are the bodies of birds streamlined
(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.
if you try to hold a glass with oil on your hands it tends to slip.why?
why do brake pads of bicycles have to replaced quite often
WHY DO WE SLIP ON A MUDDY ROAD AND WHEN WE STEP ON A BANANA PEEL?
IS rolling friction more than sliding friction? true or false
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