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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
what is streamlining ??
Explain Friction as necessary evil?
friction a necessary evil
Arrange in ascending order-
Rolling friction; Sliding friction; Static friction; Kinetic friction; Fluid friction
IMAGINE THAT FRICTION SUDDENLY VANISHES. HOW WOULD LIFE BE AFFECTED. LIST TEN SUCH SITUATIONS
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!!!!
give three examples of increase and decrease friction.
Albert plays football. His sister Juliana plays volleyball. While walking home from practice one day, Albert and Juliana argue about which is bigger, a football or volleyball.
How would you measure and compare the sizes of the two balls? ________________________
WHAT ARE THE CHEMICALS PRESENT IN MATCHSTICK?
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.
give example to show that friction is both a friend and a foe?
Why is rolling friction less than sliding friction??
What are the differences between sliding and rolling friction ? ...(atleast 3)
Explain why the sole of our shoe wear out.
why is 'static friction'called a self adjusting force?
'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???
how 2 make webpages on pollution i jst need d HTML code plzz
how does friction helps us in walking?
60g of ice at 0°C is added to 20g of water at 40°. The final temperature attained by the mixture is (given
why spaceships are provided with heat shields
a ball moving on a horizontal surface stops after sometime without applying any force.why
what will happen if friction suddenly vanishes from our life
why is rolling friction less than sliding friction?
Why do we sprinkle fine powder on the carom board while playing?
What is a streamlined body? How is it helpful for a body to have such a shape?
mention three effects (consequences) of friction.
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?
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.
on what principle do ball bearings work
GIVE REASON WHY POWDER IS SPRINKLED ON THE CARROM BOARD
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
why do we slip while stepping on a banana peel?
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 are the worn out tyres discarded?
Four cubical boxes 1, 2, 3 and 4 - made of the same material - are placed on the ground, and are pushed with a constant force. d1, d2, d3 and d4 are the distances travelled by the boxes. They are related as d3 > d2 > d4 > d1. How are the sides a1, a2, a3 and a4 of the respective boxes related?
why do painters use sand paper before painting the doors??
why metal chains are wrapped on tyres when they run on icy roads ?
What role does friction play in the sport of your choice?
why are machines often oiled or greased?
imagine thet friction suddenly vanishes,how would life be affected.list ten such situation
IS rolling friction more than sliding friction? true or false
explain why the handles of motor cyclenr covered with a rubber sheet with spikes????
A pendulum will never stop oscillating if placed on moon.
Justify the given statement.
Why is friction called a perverse force ?
kabaddi players rub thier hands with the soil before the game starts
why are grooves provided in the soles of shoes
Why does the sportsmen use shoes with spikes?
why do gymnasts apply a coarse substance to their hands
Give two examples where friction is (a) Useful (b) A nuisance.
What role does friction play in the sport of your choice?
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.
Is there any difference between friction and frictional force?
if you try to hold a glass with oil on your hands it tends to slip.why?
Why do painter uses and paper in white washing the walls and in polishing doors?
WHY DO WE SLIP ON A MUDDY ROAD AND WHEN WE STEP ON A BANANA PEEL?
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