Question: What Are The Two Main Factors On Which The Force Of Friction Depends?

What determines the force of friction?

Friction is determined by the two surfaces in contact, and how tightly the two surfaces are pushed together (normal force F N F_N FN​F, start subscript, N, end subscript).

Coefficient of friction ( μ): this describes the roughness between two surfaces.

A high coefficient of friction produces more friction..

What are the disadvantages of friction?

Disadvantages 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.More items…

What are the 2 types of friction?

There are two main types of friction, static friction and kinetic friction. Static friction operates between two surfaces that aren’t moving relative to each other, while kinetic friction acts between objects in motion.

What are the 4 types of friction?

Friction is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces.

What are two disadvantages of friction?

Disadvantages of friction:It always resists the motion, so extra energy is required to overcome it.It causes wear and tear of machines.It decreases the life expectancy of moving parts of vehicles.Since friction is very useful in some cases while harmful in some cases, friction is called a necessary evil.

What happens if you reduce friction?

The reduced friction means there is less wear on the car’s moving parts and less heat produced. Ice causes very little friction, which is why it is easy to slip over on an icy day. However, this is a good thing for ice skating and sledging.

On what force of friction depends?

Ideally, the coefficient of kinetic friction only depends on the nature of the surfaces. It does not depend on any other factors, including the relative speed of the surfaces and the surface area of contact. You will determine µ. You investigate the force of friction by studying objects moving at constant speed.

Which surface will have more friction force?

There is more friction between two coarse materials rubbing against each other than between a coarse and a smooth surface. Equally, there is relatively little friction exerted between two smooth surfaces. Sometimes, the frictional force is so great that it prevents movement.

Does friction increase with speed?

The friction force is increased proportionally with the normal / perpendicular force between the objects. Speed increase does not change this friction force, but it does increase other resulting factors, such as heat, in the system. What is friction?

How does friction affect speed?

When a force makes something move, it will travel a certain distance in a measurable amount of time. This determines its speed. It will keep moving until it is acted upon by force or friction.

What is advantage and disadvantage of friction?

Advantage:Friction is help use to move one place to another place . Disadvantage:when the friction come on walking and running they work on the sole of shoes and the a sole of shoes is decreased by running and walking so, it is costly. Friction plays a vital role in our daily life. Without friction we are handicap.

How do you reduce friction examples?

Methods of reducing friction1)Friction can be reduced by making the surface smooth by polishing.2)Friction can be reduced by applying lubricants (like oil or grease) to the rubbing surface.3)Friction can be reduced by using wheels to move objects.4)Friction can be reduced by using ball bearing between the moving parts of machine.

What are the factors that affect solid friction?

What are the factors affecting the friction between two solid objects? The friction between two solid objects increases by increasing the speed and the surface area of the moving body, The friction between the solid objects increases between the rough surfaces.

What are two negative effects of 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.