Methods for decreasing 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.

Reducing Friction There are several ways to reduce friction: The use of bearing surfaces that are themselves sacrificial, such as low shear materials, of which lead/copper journal bearings are an example. Replace sliding friction with rolling element friction, such as with the use of rolling element bearings.

• 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.

How is friction harmful?

• Friction reduces the speed of the moving objects and it even stops the motion of the object.
• Friction between the objects produces heat.
• There will be wear and tear of the machine parts due to friction.
• The frictional force opposes the motion of a body therefore, more energy is required to overcome the friction.

Friction between moving engine parts increases their temperature and causes the parts to wear down. Friction can be both harmful and helpful, so it may be necessary to decrease or increase friction. How can we reduce friction?

friction can cais the following effects.

• it produces heat.
• it sometimes wore and tore things.
• it help in making balance of anything.

Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations. Adhesion is the molecular force resulting when two materials are brought into close contact with each other.

Advantages of friction:

• Friction enables us to walk freely.
• It helps to support ladder against wall.
• It becomes possible to transfer one form of energy to another.
• Objects can be piled up without slipping.
• Breaks of vehicles work due to friction.
• It always resists the motion, so extra energy is required to overcome it.

Friction acts as a resisting force which is generated , when two solid surfaces slide against one another. Examples :- <> For walking , there is a friction between our shoes / feet . <>There is a friction between the tires of a vehicle and between the road.

Friction is defined as the force that opposes the motion of a solid object over another. There are mainly four types of friction: static friction, sliding friction, rolling friction, and fluid friction.

Friction can be a useful force because it prevents our shoes slipping on the pavement when we walk and stops car tyres skidding on the road. When you walk, friction is caused between the tread on shoes and the ground. This friction acts to grip the ground and prevent sliding. Sometimes we want to reduce friction.

Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact.

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.

Solution : The force which opposes the relative motion between the two surfaces that are in contact with each other is called 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.

To reduce friction we can make the surfaces in contact smooth. Also adding a lubricant to two surfaces in contact reduces friction between them. Grease is added between the moving parts in machines, to reduce friction. Another method of reducing friction is by using bearings.

Methods of reducing friction

1. Make surfaces smooth by grinding.
2. Lubrication.
3. Streamlined body.
4. Reduce pressure or weight on the object.
5. Reduce contact between surfaces by electrostatic magnetic levitation etc.
6. Use rolling friction instead of sliding friction.
7. Use fluid friction instead of the dry friction.

Friction is defined as. The resistance offered by the surfaces that are in contact with each other when they move over each other. Friction provides traction that is needed to walk without slipping. Friction is useful in most cases, however, they also provide a great measure of opposition to the motion.

Causes of Friction: Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations. Adhesion is the molecular force resulting when two materials are brought into close contact with each other.

friction between moving parts in machines is undesirable, because the moving parts rub against each other, heat up, and wear out. Friction can be reduced by lubricating the surfaces.