Provide at least two negative effects of friction, and explain how friction can be reduced.?

What are two negative effects of friction?

What are the negative effects of friction?

  • The biggest disadvantage of friction is wear and tear that happens as a result of friction.
  • Friction causes wear and tear in machinery parts and also cause wastage of electricity and energy.
  • Friction causes moving objects to stop or slow down.

What are 3 ways friction can be reduced?

Methods for decreasing friction:

  • Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.
  • Lubrication is another way to make a surface smoother.
  • Make the object more streamlined.
  • Reduce the forces acting on the surfaces.
  • Reduce the contact between the surfaces.

What do we do to reduce the negative effects of friction in systems?

There are several ways to reduce friction:

  1. The use of bearing surfaces that are themselves sacrificial, such as low shear materials, of which lead/copper journal bearings are an example.
  2. Replace sliding friction with rolling element friction, such as with the use of rolling element bearings.

How can we reduce friction give example?

  • Polishing the rough surface.
  • Oiling or lubricating with graphite or grease the moving parts of a machine.
  • Providing all bearings or wheels between the moving parts of a machine or vehicles reduce friction and allow smooth movement as rolling friction is less than sliding friction.

What is advantage and disadvantage of friction?

Friction produces unnecessary heat leading to the wastage of energy. The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects. Forest fires are caused due to the friction between tree branches.

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What’s bad about friction?

The biggest disadvantage of friction is wear and tear that happens as a result of friction. Wear is the gradual removal of material at solid surfaces occurring as a result of damage caused by friction and/or corrosion. Wear leads to loss of functionality. Tribology is the study of wear of materials.

What are 2 ways friction can be increased?

There are two methods of increasing friction: one is by making the surfaces rough and the other by increasing the mass of the object that is moving. For example, the tyres of vehicles have treads (these are the ‘designs’ that you can see on the tyre surface), which increase the friction between the tyre and the road.

What are 3 ways to use friction to your advantage?

Friction’s advantages include:

  • Being able to walk across a surface without slipping. This is static friction.
  • Writing on a piece of paper with a pencil or a pen. This is. sliding friction. * Driving a car across the road surface. This is. rolling friction. * Jumping out of an airplane with a parachute. This is.

Can we reduce friction to zero?

Friction can be reduced by polishing surfaces or using large amount of lubricants such as oil, water, or grease but we cannot reduce friction to zero. We cannot completely eliminate friction.

Why do we need to reduce friction?

Friction is a necessary evil which causes a lot of wear and tear in machine parts that move against each other. It erodes the surfaces and destroys their symmetries. Hence, in such cases it is desirable to reduce friction. Friction is reduced by lubricating surfaces to decrease the friction.

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Why do wheels reduce friction?

A wheel reduces friction by allowing the contacting surfaces to roll rather than to drag or slide over each other. By reducing friction, a wheel can enable you to use less force to move an object. The less force you use to move an object, the easier your work becomes.

How is friction due to air reduced?

Explanation: Friction due to air is considerably reduced by streamlining the shape pf the body moving through air. For example, jets have a streamline shape. The force between the tyres and the road is small to provide the necessary centripetal force.

What can reduce friction?

By polishing the surface, as polishing makes the surface smooth and friction can be reduced. Using lubricants such as oil or grease can reduce the friction between the surfaces. When objects are rolled over the surface, the friction between the rolled object and surface can be reduced by using ball bearings.

What is friction very short answer?

Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces.

What are uses of friction?

Friction is a resistance force that slows down or prevents motion, it is necessary for many applications where you might want to hold items or do things and prevent slipping or sliding. Friction is used in car brakes, when we walk or climb a hill, making a fire, skiing down a hill, and more.

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