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Can anyone list 10 advantages and disadvantages of friction?
give 10 examples of friction in our daily life.
What are the methods of reducing friction? Explain .
What role does friction play in the sport of your choice?
why does rough surface have greater friction then smooth surface?
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 are the problems faced by people living in desert areas?
explain why sliding friction is less than static 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?
write various techniques adopted by human beings to reduce energy losses due to friction
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
What is the difference between force and friction?
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?
Why do painter uses and paper in white washing the walls and in polishing doors?
give example to show that friction is both a friend and a foe?
what is streamlining ??
Why is rolling friction less than sliding friction??
What are the differences between sliding and rolling friction ? ...(atleast 3)
Water comes out more slowly from upstairs tap than from a similar
tap downstairs.
Explain why the sole of our shoe wear out.
Arrange in ascending order-
Rolling friction; Sliding friction; Static friction; Kinetic friction; Fluid friction
why is 'static friction'called a self adjusting force?
how 2 make webpages on pollution i jst need d HTML code plzz
out of sliding friction.static friction and rolling friction
(a) which one is the smallest
(b) which one is the largest
how does friction helps us in walking?
Why is it that we use powder to increase friction ( used by weightlifters) and we also use powder to decrease friction ( used while playing caram) ??
why spaceships are provided with heat shields
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.
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?
mention three effects (consequences) of 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? ________________________
_________
can we reduce friction to zero by polishing surfaces or using large amount of lubricants?
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.
What is a streamlined body? How is it helpful for a body to have such a shape?
GIVE REASON WHY POWDER IS SPRINKLED ON THE CARROM BOARD
why do we slip while stepping on a banana peel?
Why are the worn out tyres discarded?
why do painters use sand paper before painting the doors??
imagine thet friction suddenly vanishes,how would life be affected.list ten such situation
explain why the handles of motor cyclenr covered with a rubber sheet with spikes????
Why is friction called a perverse force ?
on what principle do ball bearings work
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.
C) always
D) only if the inertia of the object decreases
kabaddi players rub thier hands with the soil before the game starts
why are grooves provided in the soles of shoes
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 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.
Is Friction a self-adjusting force? Give two disadvantages of friction?
Why friction is a necessary evil?
why are the bodies of birds streamlined
Explain 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.
Blocks X and Y are attached to each other by a light rope and can slide along a horizontal, rough surfce. Block X gas a mass of 10kg and block Y a mass of 5kg. An applied force of 36N (right side) acts on block X. Suppose the magnitude of the force of friction on blocks X and Y and 8N and 4N respectively. The magnitude of tension in the string between the blocks is _______.
if you try to hold a glass with oil on your hands it tends to slip.why?
would you be able to suck juice with a drinking straw on the moon ?give reason?
WHY DO WE SLIP ON A MUDDY ROAD AND WHEN WE STEP ON A BANANA PEEL?
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Syllabus
Can anyone list 10 advantages and disadvantages of friction?
give 10 examples of friction in our daily life.
What are the methods of reducing friction? Explain .
What role does friction play in the sport of your choice?
why does rough surface have greater friction then smooth surface?
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 are the problems faced by people living in desert areas?
explain why sliding friction is less than static 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?
write various techniques adopted by human beings to reduce energy losses due to friction
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
What is the difference between force and friction?
IMAGINE THAT FRICTION SUDDENLY VANISHES. HOW WOULD LIFE BE AFFECTED. LIST TEN SUCH SITUATIONS
suggest the way to carry luggage of weight greater than the weight of the person
give three examples of increase and decrease friction.
WHAT ARE THE CHEMICALS PRESENT IN MATCHSTICK?
Why do painter uses and paper in white washing the walls and in polishing doors?
give example to show that friction is both a friend and a foe?
what is streamlining ??
Why is rolling friction less than sliding friction??
What are the differences between sliding and rolling friction ? ...(atleast 3)
Water comes out more slowly from upstairs tap than from a similar
tap downstairs.
Explain why the sole of our shoe wear out.
Arrange in ascending order-
Rolling friction; Sliding friction; Static friction; Kinetic friction; Fluid friction
why is 'static friction'called a self adjusting force?
how 2 make webpages on pollution i jst need d HTML code plzz
out of sliding friction.static friction and rolling friction
(a) which one is the smallest
(b) which one is the largest
how does friction helps us in walking?
Why is it that we use powder to increase friction ( used by weightlifters) and we also use powder to decrease friction ( used while playing caram) ??
why spaceships are provided with heat shields
B) why does the box stay at rest in the cases corresponding to fig.(a)and fig.(b)
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.
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?
mention three effects (consequences) of 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? ________________________
_________
can we reduce friction to zero by polishing surfaces or using large amount of lubricants?
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.
What is a streamlined body? How is it helpful for a body to have such a shape?
GIVE REASON WHY POWDER IS SPRINKLED ON THE CARROM BOARD
why do we slip while stepping on a banana peel?
Why are the worn out tyres discarded?
A) carpet
B)glazed tiles
C) wood
D) door mat
why do painters use sand paper before painting the doors??
imagine thet friction suddenly vanishes,how would life be affected.list ten such situation
?
Select one:
a.?A experiences more frictional force than B
b.?B experiences more frictional force than A
c.?Both experience same frictional force
d.?Cannot be said because data is insufficient.
explain why the handles of motor cyclenr covered with a rubber sheet with spikes????
Why is friction called a perverse force ?
on what principle do ball bearings work
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.
C) always
D) only if the inertia of the object decreases
kabaddi players rub thier hands with the soil before the game starts
why are grooves provided in the soles of shoes
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 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.
Is Friction a self-adjusting force? Give two disadvantages of friction?
Why friction is a necessary evil?
why are the bodies of birds streamlined
Explain 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.
Blocks X and Y are attached to each other by a light rope and can slide along a horizontal, rough surfce. Block X gas a mass of 10kg and block Y a mass of 5kg. An applied force of 36N (right side) acts on block X. Suppose the magnitude of the force of friction on blocks X and Y and 8N and 4N respectively. The magnitude of tension in the string between the blocks is _______.
if you try to hold a glass with oil on your hands it tends to slip.why?
would you be able to suck juice with a drinking straw on the moon ?give reason?
WHY DO WE SLIP ON A MUDDY ROAD AND WHEN WE STEP ON A BANANA PEEL?