How to reduce friction ?

How to reduce friction ?
by

1 Answer

Answer :

The main cause of friction is uneven surface. The high notch of any one of them gets stuck in the arteries and causes friction. Therefore the surface is smoothed as much as possible to reduce friction. Oil , mobil and other lubricants including grease are used in this work. Wheels and ball-bearings are also used to keep uneven surfaces out of contact with each other for long periods of time.
by

Related questions

What is used to reduce the friction of rotating parts of a car ?

Description : What is used to reduce the friction of rotating parts of a car ?

Last Answer : : Lubricants are used to reduce the friction of the rotating parts of the car.

State any four methods to reduce friction.

Description : State any four methods to reduce friction.

Last Answer : State any four methods to reduce friction.

What liquid is used to reduce friction?

Description : What liquid is used to reduce friction?

Last Answer : What is the answer ?

What is the substance such as oil or grease that is used to reduce friction.?

Description : What is the substance such as oil or grease that is used to reduce friction.?

Last Answer : What is the answer ?

why it is important to reduce friction at movable joint?

Description : why it is important to reduce friction at movable joint?

Last Answer : friction will resist smooth motion at a moveable joint so reducing friction allows joint to move freely

Ball bearings are used in cycles, scooters etc. to _____. A. Reduce the friction between the wheel and the axle B. Increase the friction between the wheel and the axle C. Reduce the friction between ground and the wheel D. None of these

Description : Ball bearings are used in cycles, scooters etc. to _____. A. Reduce the friction between the wheel and the axle B. Increase the friction between the wheel and the axle C. Reduce the friction between ground and the wheel D. None of these

Last Answer : ANSWER: A

The purpose of lubrication in an antifriction bearing is (a) to reduce the friction between balls and races (b) dissipation of frictional heat prevention of corrosion (c) protection of the bearing from dirt and other foreign particles (d) all of the mentioned

Description : The purpose of lubrication in an antifriction bearing is (a) to reduce the friction between balls and races (b) dissipation of frictional heat prevention of corrosion (c) protection of the bearing from dirt and other foreign particles (d) all of the mentioned

Last Answer : (d) all of the mentioned

The ball bearings are provided with a cage (a) to reduce friction (b) to facilitate slipping of balls (c) to prevent the lubricant from flowing out (d) to maintain the balls at a fixed distance apart

Description : The ball bearings are provided with a cage (a) to reduce friction (b) to facilitate slipping of balls (c) to prevent the lubricant from flowing out (d) to maintain the balls at a fixed distance apart

Last Answer : (d) to maintain the balls at a fixed distance apart

We often sprinkle talcum powder on the carom board . This is done to reduce ______ between the board and the striker. a) friction b)movement c)speed d)contact

Description : We often sprinkle talcum powder on the carom board . This is done to reduce ______ between the board and the striker. a) friction b)movement c)speed d)contact

Last Answer : a) friction

________ is a substance that can reduce the force of friction between the two surface in contact. a) lubricant b)paste c)water d)push

Description : ________ is a substance that can reduce the force of friction between the two surface in contact. a) lubricant b)paste c)water d)push

Last Answer : a) lubricant

A ball bearing is used in shafts of motors, dynamos to reduce ______. a) movement b)friction c)speed d)none

Description : A ball bearing is used in shafts of motors, dynamos to reduce ______. a) movement b)friction c)speed d)none

Last Answer : b)friction

The armature of a dc machine is laminated to reduce: (A) Eddy current loss (B) Hysteresis loss (C) copper losses (D) friction and windage losses

Description : The armature of a dc machine is laminated to reduce: (A) Eddy current loss (B) Hysteresis loss (C) copper losses (D) friction and windage losses

Last Answer : Ans: A Thinner the laminations, greater is the resistance offered to the induced e.m.f., smaller the current and hence lesser the I2R loss in the core.

Does anyone know the coefficient of friction for an A rated tire?

Description : Does anyone know the coefficient of friction for an A rated tire?

Last Answer : answer:I can't give you an exact number on that, but I the A traction grade is the second-highest rating given to a tire, AA being the highest. The traction grade applies to wet ... 'd see on a skidpad test. There, you have sidewall construction and vehicle characteristics to consider as well.

Explain the disadvantages of friction ?

Description : Explain the disadvantages of friction ?

Last Answer : Vehicles cannot move easily due to excessive friction. As a result of friction between the moving parts of the machinery, they are eroded and torn. Any type of vehicle has to spend extra fuel ... converted into heat. This causes the engine parts to overheat which can cause the engine to malfunction.

Explain the effect of friction on motion ?

Description : Explain the effect of friction on motion ?

Last Answer : Friction is a kind of barrier force that slows down the motion of an object. Although friction causes many problems in our daily life, friction plays an important role in movement and driving. Road and ... car to move forward. The brakes used to control the speed work on the principle of friction.

Explain why friction occurs while driving .

Description : Explain why friction occurs while driving .

Last Answer : Apparently, the surface of an object seems to be smooth, but when viewed with the help of a microscope, many high and low grooves can be noticed on it. When an object moves over another object , ... As a result, the motion of one floor over another is restricted. This is how friction is created.

What is flowing friction ?

Description : What is flowing friction ?

Last Answer : When an object is moving in a flowing substance, the action of friction is called flowing friction.

Argument in favor of friction is a necessary nuisance ?

Description : Argument in favor of friction is a necessary nuisance ?

Last Answer : There is nothing we can do without friction. If there were no friction, the motion of the object would not have stopped , it would have continued non-stop. A nail is fixed to the wall because ... parachute. So while friction is considered a nuisance in many areas of our daily lives, it is essential.

What is friction ? Write the names of different types of friction ?

Description : What is friction ? Write the names of different types of friction ?

Last Answer : When two objects try to move on top of each other or keep moving, the obstruction that arises against this motion at the touch of both objects is called friction. Four types of friction. Namely- 1. Position friction , II. Slippery friction , 3. Rotating friction , 4. Flowing friction.

Explain the difference between vortex friction and vortex friction ?

Description : Explain the difference between vortex friction and vortex friction ?

Last Answer : The friction that occurs when an object tries to slip or rub on the surface of another object, that is, when it moves, and the friction that acts against the motion when an object rolls ... to cyclic friction. Undoubtedly, the value of rotational friction is much lower than that of bismuth friction.

What are the benefits of friction ?

Description : What are the benefits of friction ?

Last Answer : Advantages of friction: (a) I could not walk without friction. (B) Nail or screw flour would not be possible. (C) No giro could be given on the rope.

Friction is a necessary nuisance - argue in favor ?

Description : Friction is a necessary nuisance - argue in favor ?

Last Answer : Friction is a necessary nuisance. Apparently there is no need for friction. But without friction, an object would continue to move in the same unobstructed way. If there was no friction again, ... there was no friction, we would have faced various difficulties. So friction is a necessary nuisance.

Why friction force is not a conservation force ?

Description : Why friction force is not a conservation force ?

Last Answer : If an object starts its journey from a point and turns in a certain direction and then returns to the same point. This is possible in the case of gravitational forces and electric balls. This ... force of friction is not zero. Rather negative. For this reason friction force is not forest protection.

What is friction and friction force ?

Description : What is friction and friction force ?

Last Answer : Friction and friction force: When an object tries to move or move from one object to another in contact, an obstacle arises against the motion of the two objects , this obstacle is called ... . The force of friction always acts in the opposite direction of motion. Friction always hinders motion.

What is bisarpa friction ?

Description : What is bisarpa friction ?

Last Answer : : The friction that occurs when an object tries to slip or rub on the surface of another object is called slippery friction.

What is friction called ?

Description : What is friction called ?

Last Answer : Friction is called Necessary evil .

What is friction ?

Description : What is friction ?

Last Answer : When an object tries to move or move from one object to another in contact with another, an obstacle is created against the motion of the two objects , this obstacle is called friction.

What is Static Friction ?

Description : What is Static Friction ?

Last Answer : The friction that occurs between two surfaces when one is not moving relative to the other is called positional friction.

What is slippery friction ?

Description : What is slippery friction ?

Last Answer : The friction that occurs when an object tries to slip or rub on the surface of another object is called slippery friction.

What is rotation friction ?

Description : What is rotation friction ?

Last Answer : When an object rolls over another surface, the force of friction that acts against the motion is called rotational friction force. The speed of the wheel of the bicycle, the speed of the marble is an example of rotating friction.

What is flowing friction ?

Description : What is flowing friction ?

Last Answer : Friction that acts when an object is moving between any flowing substance such as liquid or gaseous matter is called flowing friction. The parachute exploits the friction of the current.

The water from a hand pump is warm in winter because - (1) our body is cold in winter and the water appears to be warm (2) the temperature inside the Earth is higher than the atmospheric temperature (3) the pumping process causes friction which warms up the water (4) inside water comes out and absorbs heat from the environment

Description : The water from a hand pump is warm in winter because - (1) our body is cold in winter and the water appears to be warm (2) the temperature inside the Earth is higher than the atmospheric ... causes friction which warms up the water (4) inside water comes out and absorbs heat from the environment

Last Answer : (2) the temperature inside the Earth is higher than the atmospheric temperature

The water from a hand pump is warm in winter because – (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric temperature (3) The pumping process causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Description : The water from a hand pump is warm in winter because - (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric ... causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Last Answer : (2) The temperature inside the earth is higher than the atmospheric temperature Explanation: In winter, the outside temperature is lower than that of water flowing out of the pump, and therefore, the ... the outside temperature is higher than the water of the pump, and therefore, it feels cold.

The water from a hand pump is warm in winter because – (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric temperature (3) The pumping process causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Description : The water from a hand pump is warm in winter because - (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric ... causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment

Last Answer : (2) The temperature inside the earth is higher than the atmospheric temperature Explanation: In winter, the outside temperature is lower than that of water flowing out of the pump, and therefore, the ... the outside temperature is higher than the water of the pump, and therefore, it feels cold.

The function of ball bearings in a wheel is – (1) to increase friction (2) to convert kinetic friction into rolling friction (3) to convert static friction into kinetic friction (4) just for convenience

Description : The function of ball bearings in a wheel is – (1) to increase friction (2) to convert kinetic friction into rolling friction (3) to convert static friction into kinetic friction (4) just for convenience

Last Answer : (2) to convert kinetic friction into rolling friction Explanation: A ball bearing is a type of rollingelement bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads.

Vehicle tyres are inflated properly – (1) to ensure smooth running. (2) to allow the vehicle to take more load. (3) to avoid skidding and to minimize friction (4) to go fast and save fuel.

Description : Vehicle tyres are inflated properly – (1) to ensure smooth running. (2) to allow the vehicle to take more load. (3) to avoid skidding and to minimize friction (4) to go fast and save fuel.

Last Answer : (3) to avoid skidding and to minimize friction Explanation: Under-inflated tyres create more friction with the road, increasing fuel consumption by up to ten per cent and are prone to skidding on ... or slippery surfaces. Low pressures also lead to premature wear and risk of tyre blowout or bulging.

Rain drops acquire spherical shape due to - (1) viscosity (2) surface tension (3) friction (4) elasticity

Description : Rain drops acquire spherical shape due to - (1) viscosity (2) surface tension (3) friction (4) elasticity

Last Answer : (2) surface tension Explanation: The Surface tension pulls the surface of the drop equally at all points thus produces the spherical shape having the minimum surface area.

It is difficult to walk on ice because of ______. (1) absence of friction (2) less inertia (3) more inertia (4) more mass

Description : It is difficult to walk on ice because of ______. (1) absence of friction (2) less inertia (3) more inertia (4) more mass

Last Answer : (1) absence of friction Explanation: It's difficult to walk on ice because there's very little friction between the bottoms of your shoes and the ice. Friction is a force that opposes motion.

Newton's first law is also known as __. (1) Law of Friction (2) Law of Momentum (3) Law of Inertia (4) Law of Motion

Description : Newton's first law is also known as __. (1) Law of Friction (2) Law of Momentum (3) Law of Inertia (4) Law of Motion

Last Answer : (3) Law of Inertia Explanation: Newton's first law of motion is also known as the law of inenrtia. It states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

The hair of shaving brush clings together when removed from water due to – (1) Surface tension (2) Viscosity (3) Elasticity (4) Friction

Description : The hair of shaving brush clings together when removed from water due to – (1) Surface tension (2) Viscosity (3) Elasticity (4) Friction

Last Answer : (1) Surface tension Explanation: Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. It is revealed, for example, in the floating of ... is caused by cohesion of similar molecules, and is responsible for many of the behaviors of liquids.

Angle of friction and angle of repose are (1) Equal to each other (2) Not equal to each other (3) Proportional to each other (4) None of the above

Description : Angle of friction and angle of repose are (1) Equal to each other (2) Not equal to each other (3) Proportional to each other (4) None of the above

Last Answer : (1) Equal to each other Explanation: The angle of repose or the critical angle of repose, of a granular material is the steepest angle of descent or dip of the slope relative to the horizontal ... the density, surface area and shapes of the particles, and the coefficient of friction of the material.

'Cryogenics' is a science dealing with – (1) high temperatures (2) low temperatures (3) friction and wear (4) growth of crystals

Description : 'Cryogenics' is a science dealing with – (1) high temperatures (2) low temperatures (3) friction and wear (4) growth of crystals

Last Answer : (2) low temperatures Explanation: Cryogenics is the study of how to get to low temperatures and of how materials behave when they get there. Besides the familiar temperature scales of Fahrenheit and ... modern processes being used to treat metals (as well as other materials) is cryogenic tempering.

Rain drops acquire spherical shape due to - (1) viscosity (2) surface tension (3) friction (4) elasticity

Description : Rain drops acquire spherical shape due to - (1) viscosity (2) surface tension (3) friction (4) elasticity

Last Answer : (2) surface tension Explanation: The Surface tension pulls the surface of the drop equally at all points thus produces the spherical shape having the minimum surface area.

Vehicle will accelerate as long as A. air resistance is greater than thrust B. air resistance is greater than inertia C. thrust is greater than air resistance and friction D. friction is greater than thrust

Description : Vehicle will accelerate as long as A. air resistance is greater than thrust B. air resistance is greater than inertia C. thrust is greater than air resistance and friction D. friction is greater than thrust

Last Answer : thrust is greater than air resistance and friction

Normal force acting per unit cross sectional area is called A. weight B. pressure C. volume D. friction

Description : Normal force acting per unit cross sectional area is called A. weight B. pressure C. volume D. friction

Last Answer : pressure

Normal force exerted per unit area by gas on walls of container is A. temperature B. energy C. pressure D. friction

Description : Normal force exerted per unit area by gas on walls of container is A. temperature B. energy C. pressure D. friction

Last Answer : pressure

Pair of forces that cause steering wheel of a car to rotate is called A. couple B. friction C. normal force D. weight

Description :  Pair of forces that cause steering wheel of a car to rotate is called A. couple B. friction C. normal force D. weight

Last Answer : couple

Incorrect statement for co-efficient of friction could be that A. The coefficient of friction is denoted by the Greek letter µ. B. The coefficient of friction is directly proportional to the force of friction C. The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure D. The coefficient of friction is inversely proportional to the force pressing the surfaces together

Description : Incorrect statement for co-efficient of friction could be that A. The coefficient of friction is denoted by the Greek letter µ. B. The coefficient of friction is directly proportional to ... D. The coefficient of friction is inversely proportional to the force pressing the surfaces together

Last Answer : The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure

Kinetic friction is always A. lesser than static friction B. greater than static friction C. equal to static friction D. equal to contact force

Description : Kinetic friction is always A. lesser than static friction B. greater than static friction C. equal to static friction D. equal to contact force

Last Answer : lesser than static friction

Only force acting on a bouncing ball is A. gravity B. weight of ball C. friction D. a and b both

Description : Only force acting on a bouncing ball is A. gravity B. weight of ball C. friction D. a and b both

Last Answer : a and b both