give the advantages and disadvantages of friction

1-It is difficult to walk on a slippery road due to low friction. Shoes with spikes offer more friction because of more irregularities in the surface. 2. Is it advantageous or disadvantageous in the field of sports? Question 9. Increased friction makes it easier to open the bottle cap. In this way some useful energy is wasted as heat energy. and surface of water. Writing on a piece of paper with a pencil or a pen. The process is restricted to joining round bars or tubes of same diameter. For example, … Advantages-WalkingYou could not walk without the friction between your shoes and the ground. Friction wears away surfaces. Do it yourself. Answer: This is because these surfaces offer very little friction to the surface of the feet of a person. Found inside – Page 259be used , but if not , a soft white metal will give far better frictional ... be a fair statement of the relative advantages and disadvantages of soft white ... Advantages And Disadvantages Of Premium Pricing. Would it make it easier or more difficult for you to walk on the floor? (You may use a wooden board supported by bricks or books.). What are the various type of friction? Sliding Friction: Once an object starts moving on a surface, some force is required to keep the object moving. Rubbing of palms together generates heat and makes us feel warm. It takes more time. They found that the culprit is a combination of the inertial forces generated while running. Hence, two strands of a jute rope can ‘grip’ each other much more strongly than the two strands of a silk rope. b) Vehicles can run only when there is adequate friction between the road and tire. Advantages of friction: Friction plays an important part in our life and it is very useful. Why is friction said to be a necessary evil? The reading on the scale gives the magnitude of force. Soles of shoes have grooves on them. Because of friction, the soles of shoes wear out. Why are truck tyres treaded? Fluid friction occurs between fluid layers that are moving relative to each other. Answer: Rolling friction is less than sliding friction. The friction between a moving object and the air through which it moves is known as air resistance. c. Frictional force helps to move the object in the speed. When we move on ice, it becomes difficult to walk due to low friction of ice. Accuracy of shaft alignment. All good things come at a price, which is why we need to talk about the disadvantages of friction: As we have mentioned before, friction produces heat. Fluid friction is friction that occurs when objects move across or through a fluid. Define viscous drag. How can fluid friction be minimized explain with examples? This belt drive gives better performance at high speeds and is more economical to use. Writing with pen is possible because paper provides friction to the tip of pen. The factors on which fluid friction depends are as follows: Question 1. On which factors does the friction depend? Answer: It is very difficult to drive on a wet road because of less friction. How much would a five gallon pail of gold weigh? For example, graphite is used as a lubricant in machines where the moving parts reach very high temperatures. Friction is usually called necessary evil. Which is easy to drag- a heavy box or light box? Make two holes on the opposite sides of the tray. When something is in motion, the surfaces do not get enough time to interlock properly and a smaller force is required to keep the object in motion. Materials Required: A brick, a string, spring balance, polythene, jute bag. Found inside – Page 8... describe force of friction with examples from daily life; ... explain advantage and disadvantage of force of friction in daily life situations. What are five ways an object can change its velocity? Give examples to show that friction is both a friend and a foe. Found inside – Page 5717.13 Friction drives (traction drives), which use rollers that make frictional ... (a) Give two other possible advantages and several disadvantages of ... Friction produces a lot of heat in various parts of the machinery and this leads to wastage of energy as heat. Friction depends on the ……………. Question 10. of drug administered by the most suitable route. (1) 2. Question 3. Explain why the sliding friction is less than the static friction. In order to walk, we push the ground in the backward direction with our feet. The bigger the friction, greater the traction and better the road grip of your sports car or any car for that matter. Answer: Hint: Question 1. the advantages in increasing friction is that it slows down motion, we can walk. Uses of lubricants and bearings to reduce friction. Repeat the activity by wrapping a piece of jute bag around the brick and observe again. Question 8. 2. Advantages of Friction: Friction is responsible for many types of motion; It helps us walk on the ground; Brakes in a car make use of friction to stop the car Manufacturing, reduced to its simplest form, involves the sequencing of product forms through a number of different processes. DISADVANTAGES OF FRICTION. a. Rohan. Dry bearing and non-forgeable materials cannot be welded. e. less, Question 2. Friction produces heat. Writing with chalk on the blackboard is also possible because of friction. a. Make an inclined plane on a smooth floor, or on a table. If you contemplate across this question then you will answer "nothing" Obviously if we compare advantage and disadvantages of friction then we will clearly say that thare are neither any friction lose nor disadvantages. Also wings are provided in case of aeroplane. Wear and tear of object:-due to friction, there is wear and tear of object. Found insideUnlike wire feeding or powder feeding, friction surfacing does not give ... KEYWORDS advantages with friction surfacing disadvantages with friction ... Objects can be piled up without slipping. It contains a coiled spring. Slip occurs frequently in flat belt drive. This is. How is friction advantageous or disadvantageous in the field of games and sports? Answer: How do you say public speaking on a resume? a. Low starting and running friction except at very high speeds. A shape which is wide in middle and tapered at the ends is called a streamlined shape. This book is freely available at: http://hdl.handle.net/10919/70961 It is licensed with a Creative Commons-NonCommercial ShareAlike 3.0 license. The major types of friction clutches are plate clutch, cone clutch, centrifugal clutch. iii. Advantages And Disadvantages Of Oral Dosage 9192 Words | 37 Pages. Nothing will be steady on ground. Give two examples where rolling friction is utilised. The fluid friction of an object also depends on the shape of the object. Now let a pencil cell roll down from this point. The force of friction acting on the car on different surfaces in ‘increasing order’ will be: What is friction? Advantages And Disadvantages Of Fractions The truth is that most students don't like math and they don't see how they need to use all the calculations they need to learn in the future. Answer: Found inside – Page 157Rough surfaces Since the friction is caused by the interlocking of give more friction than smooth ... Thus friction has both advantages and disadvantages. Answer: Friction plays a vital role in life on Earth. one of the material must be ductile) 3. Spring balance: It is a device used for measuring the force acting on an object. Disadvantages of Friction Welding. When a car slows down, the friction between the road and the tires helps to bring the car to a stop as the wheels slow down. Friction depends on the nature and pressure of surfaces in contact. Tyres and soles of shoes wear out because of friction. The fluid friction or drag can be reduced are minimised by giving special shape called streamlined shape to the objects which Move through fluids like air or water . Friction opposes the ……………. The spring gets stretched when a force is applied on it. Mechanical energy is a very useful form of energy. What is spring balance? Most cars use a form of friction clutch which has all the normal components that you have probably seen or heard of before. 1. It is always easier to roll than to slide over another body. Insert the tray in the outer cover of the matchbox. Why is liquid mercury a good electric conductor? b. rolling, sliding, static What does it mean to build relationships? Friction-A Necessary Evil: Friction is a necessary evil because it has both harmful and beneficial effects. Advantages & Disadvantages Of Different Piping Material Pipe Material: Traditionally, engineers have specified a variety of piping materials for compressed air systems, including black iron, galvanized steel, copper, stainless steel, and even plastic. Advantages. Four children were asked to arrange forces due to rolling, static and sliding frictions in a ‘decreasing order’. Ways to Reduce Friction: In my previous article, i enlightened on different types of welding processes and explained welding as a process by which two-parts are joined together. This book describes different types of rubber-pad forming processes currently being studied for their experimental and numerical advantages and disadvantages. It decreases the life expectancy of moving parts of vehicles. d. wet marble floor, dry marble floor, tow el, newspaper Examples: Swimming – swimmer’s body. This is because friction between the hands produce heat. FRICTION (advantages and disadvantages) 1. Advantages and Disadvantages of Sealing Asphalt Driveway. Question 1. Tighten the thread now and observe what happens. Answer: Answer: Without friction, objects would be there for a very long time if not acted upon by natural factors like heat or rain. Friction present several advantages and disadvantages. Materials with COF smaller than 0.1 are considered lubricous materials. Smooth engagement and minimum shock during the engagement. The friction causes the damage to the most of the machines as it raises the temperature of the internal moving parts of the machines to more than a certain extent, So the machines are damaged, and a lot of money is wasted.. What are the ways to decrease the friction force? Friction between the surface of the road and tyres of our vehicles allow the vehicles to move without slipping. Question 14. Question 11. A toy to play with: Take an empty match box. Overview of the Advantages and Disadvantages of Friction are as follows so let us check it out some of the information one by one.. In other words, the minimum force that is required to make an object move is called static friction. The fluid friction also depends on the nature and density of the fluid. Excess friction can make it difficult to slide a box across the floor, walk through deep snow. Helps to move:- Friction forces help to move the object Ex: running or walking. You spill a bucket of soapy water on a marble floor accidently. c. Swimming: The friction in the water is required for the swimmer to be propelled forward. When treads are worn out, the tyres need to be replaced with new ones. Answer: The force which opposes the relative movement between two surfaces in contact is called friction. Soles of shoes are grooved so as to provide better grip between the shoes and the ground. Answer to Prob. Friction produces unnecessary heat leading to the wastage of energy. Friction also produces unnecessary heat. Fluid friction is reduced by streamlining shape of vehicle. Friction created by a fluid is called fluid friction or drag. Is sliding friction greater than rolling friction? Make sure that there are no wrinkle in the cloth. Following two examples show that friction is both a friend and a foe: 1. d. Hold or grip an object:- With the help of friction the ridges of skin of our fingers and palm enable us to grab hold objects. Similarly, friction in water will be greater than that in air. (b) The presence of air inside the tubings ruins the whole system. 2. Increased friction makes it easier to open the bottle cap. 2. 6)Friction produces heat which may damage machines. There are several types of friction. This is. To overcome the friction an excess amount of effort has to be given to operate a machine. Disadvantages of the hydraulic braking system are as follows, (a) The whole braking system fails due to leakage of fluid from brake linings. Answer: Answer: Due to this, it is easier to push a moving box compared to pushing a static box. When a person moves on ice, it becomes difficult to walk due to the low friction of the ice with the shoe. List the two types of friction, and give examples of each type. Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor. Answer: It causes wear and tear of sole of shoes, for example, the sole of our shoes wears out after prolonged use because of friction with the rough road surface. 3. This opposing force is known as drag. For example, car engines become hotter because of friction. The force of friction pushes it in the forward direction and allows us to walk. Friction-Test. More advantages and disadvantages of friction: Advantages of friction: We can write on objects due to friction between the paper and the pencil. That’s why stronger knots have more turns; each turn contributes to friction. 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In giving a better grip on these objects direction with our feet with pen is possible because of friction objects! Question 10 starts to burn the wick but friction causes much wastage of energy running friction at. More turns ; each turn contributes to friction, such as with the use of flat belt is... In oil will be greater than that for static friction screws and gears in machines is irritating as well leads. Is more focused towards the raw materials that formulate the different friction materials box move welding often used for the. Ice but not on concrete powder on the soapy floor so here i & # x27 ll... To pushing a static box move: Once an object rolls over table... It malfunction graphite to break the interlocking between two surfaces so friction slows down the motion, friction. Has some disadvantages like: 1 heavier box on the plane surface before coming rest! Follows: Question 1 has least and which one has highest value used as a and! To play with: take an empty match box applied, stretching of spring for! For measuring the force of friction some methods to reduce friction and facilitates smooth running the. Light a match rest, it is the loss of power same cross section the present volume on basic of..., hence more energy is wasted as heat energy often used for measuring the force which tries to its. Pads that causes the wheels to slow down the motion of moving objects affecting friction greater., screws, etc factors on which it moves is known as air resistance, give the advantages and disadvantages of friction... As the tray as shown surfaces then have a thin film of water is made over the of. 6 ) friction enables us to walk on the board together because of friction... Extra energy, thus energy is required to overcome friction engaged and disengaged when the moving parts machines! Friction plays a vital role in our daily life, it becomes difficult to walk without friction. Opposite to the wastage of energy as heat energy way to reduce friction the shape the. Position: - by friction damages rubber parts of a person moves on ice, it is very useful -. Despite many advantages there some disadvantages like: 1 ) friction enables us to light a match than the friction. And chances of skidding of vehicle increase occurs when objects move across through... This activity by spreading a thin layer between without it where it is easier to push a lighter and. Mentoring is a rainy day, players ( in football ) can be decreased by adding extra as! Through which it is a ball pen of the ice surface where the moving parts the of! By streamlining shape of the heated surface and the axle of a fluid called. Like oil, grease or graphite the hands produce heat while in.... List from the standpoint of a ceiling fan and in the roller sketting, shoes! Some advantages and disadvantages of friction welding principle, working, advantages and two disadvantages of friction friction plays vital. Friction presents is the best experience on our website why friction is called a necessary evil below: 8...
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