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Advantages of Friction

In some situations, friction is very important and beneficial. There are many things that you could not do without the force of friction.

  • Walking: You could not walk without the friction between your shoes and the ground. As you try to step forward, you push your foot backward. Friction holds your shoe to the ground, allowing you to walk.
  • Writing: Writing with a pencil requires friction. You could not hold a pencil in your hand without friction. It would slip out when you tried to hold it to write. A pencil eraser uses friction to rub off mistakes written in pencil lead. Rubbing the eraser on the lead wears out the eraser due to friction, while the particles worn off gather up the pencil lead from the paper.
  • Driving car: Your car would not start moving if it wasn't for the friction of the tires against the street. With no friction, the tires would just spin. Likewise, you could not stop without the friction of the brakes and the tires.
  • Friction Pen: Inventors have invented useful items like the friction pen/highlighter. You are able to erase the pen/highlighter mark. The problem is that the rubber at the back gets dirty easily.
  • There wouldn't be a Universe without friction.

Disadvantages of Friction

Friction can cause problems or be a nuisance that you try to minimize.

  • Makes movement difficult: Any time you want to move an object, friction can make the job more difficult. Excess friction can make it difficult to slide a box across the floor, ride a bicycle or walk through deep snow. An automobile would not move forward very well unless its friction was not reduced. Oil is needed to lubricate the engine and allow its parts to move easily. Oil and ball bearings are also used in the wheels, so they will turn with little friction.
  • Wastes energy: In any type of vehicles as a car, boat or airplane--excess friction means that extra fuel must be used to power the vehicle. In other words, fuel or energy is being wasted because of the friction. Fluid friction or air resistance can greatly reduce the gas mileage in an automobile.
  • Heats parts: The Law of Conservation of Energy states that the amount of energy remains constant. Thus, the energy that is "lost" to friction in trying to move an object is really turned to heat energy. You've seen how people will try to start a fire by vigorously rubbing two sticks together. Or perhaps you've seen an automobile spin its wheels so much that the tires start to smoke. These are examples of friction creating heat energy. Just rub your hands together to create the same effect. Besides the problem of losing energy to heat, there is also the threat of a part overheating due to friction. This can cause damage to a machine.
  • Wears things out: Any device that has moving parts can wear out rapidly due to friction. Lubrication is used not only to allow parts to move easier but also to prevent them from wearing out. Some other examples of materials wearing out due to friction include the soles of your shoes and a pencil eraser.
  • Carpet burn is because of friction.


A compromise is needed between too much friction and not enough.

For example, if you wanted to slide a heavy box across the floor, you would want to reduce the friction between the box and the floor, so that it would be easy to move. Lubrication of some sort is often a way to reduce friction.

Friction is necessary in many applications to prevent slipping or sliding. But also, it can be a nuisance because it can hinder motion. A good compromise is necessary to get just enough friction or a proper combination of frictions

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7y ago
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14y ago

Friction plays a vital role in our daily life. Without friction we are handicap.
1. It is becomes difficult to walk on a slippery road due to low friction. When we move on ice, it becomes difficult to walk due to low friction of ice.
2. We can not fix nail in the wood or wall if there is no friction. It is friction which holds the nail.
3. A horse can not pull a cart unless friction furnishes him a secure Foothold.

Despite the fact that the friction is very important in our daily life, it also has some disadvantages like:
1. The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy.
2. Due to friction we have to exert more power in machines.
3. It opposes the motion.
4. Due to friction, noise is also produced in machines.
5. Due to friction, engines of automobiles consume more fuel which is a money loss.

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11y ago

A disadvantage of friction is; if it's speed you're looking for, a disavantage of kinetic friction, is that it is a source of energy, that will slow down.

The advantage I'm about to say, uses the same principals.

You are able to apply friction to slow dow. e.g. the brakes in a car.

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7y ago

The main advantage of friction is that it enables you to move in a controlled way. With reduced friction, such as on ice, you have less control, but with no friction you would have no control! Friction causes energy to be "wasted" - for example, in the form of heat and sound.

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3y ago

advantages of friction

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Q: What are the advantages and disadvantages of friction?
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