Table of Contents
- 1 What is the product of friction?
- 2 What is the result of excess friction?
- 3 What is friction for kids?
- 4 What is the result or effect when two objects are rubbed?
- 5 What are the useful effects of friction?
- 6 What is meant by friction in physics?
- 7 Why is it so hard to explain friction?
- 8 What is the problem caused by friction?
What is the product of friction?
When surfaces in contact move relative to each other, the friction between the two surfaces converts kinetic energy into thermal energy (that is, it converts work to heat).
What is the result of excess friction?
Extra energy needed As friction increases, so too must the force and the energy required to move the object increase. In any type of vehicle—such 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.
What are the cause and effects 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.
Is friction a result of gravity?
Originally Answered: does friction depend on gravity? No, it does not. Friction, in classical mechanics (Newtonian mechanics) , is directly proportional to the normal reaction between the two surfaces that are brushing past each other. So friction only depends on Normal reaction.
What is friction for kids?
Friction is a force, the resistance of motion when one object rubs against another. Whenever two objects rub against each other, they cause friction. Friction works against the motion and acts in the opposite direction. One kind of friction or resistance is air resistance.
What is the result or effect when two objects are rubbed?
When two different materials are rubbed together, there is a transfer of electrons from one material to the other material. This causes one object to become positively charged (the electron loser) and the other object to become negatively charged (the electron gainer).
What is the effect of friction in our daily activities?
Friction can slow things down and stop stationary things from moving. In a frictionless world, more objects would be sliding about, clothes and shoes would be difficult to keep on and it would be very difficult for people or cars to get moving or change direction.
What is the effect of friction on motion class 8?
Answer: Friction is a force that reduces the relative motion between two surfaces in contact. It helps in reducing the motion of a body and to slow down the body till it stops.
What are the useful effects of 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.
What is meant by friction in physics?
friction, force that resists the sliding or rolling of one solid object over another.
What is friction math?
Friction is “the resistance an object encounters in moving over another” (OED). A “rough” surface is one which will offer some frictional resistance. Limiting Equilibrium. Imagine that you are trying to push a book along a table with your finger.
What are three ways to increase friction?
For practical purposes, all three of these effects do the same thing: generate friction. Picking surfaces that are abrasive (like sandpaper), deform when pressed (like rubber), or have adhesive interactions with other surfaces (like tacky glue, etc.) is a straightforward way to increase friction.
Why is it so hard to explain friction?
Friction is a confusing influence in our everyday experiences of motion because people are often not aware that friction involves forces . For those who think that things move because they contain a force that keeps them moving, friction can be seen as responsible for gradually using up this force.
What is the problem caused by friction?
Problems Caused by Friction. Since friction is a resistive force that slows down or prevents motion, it can be a nuisance , because it can hinder motion and cause the need for expending extra energy. Friction can also cause parts in contact to heat up and can cause parts in contact to wear out.
Why does friction depend on normal force?
Friction DOES NOT depend on the mass of the body. It depends on the normal force and the roughness of the surface in contact. When a body is placed on the ground, the mass of the body (weight= mass*acceleration due to gravity) comes into play for the normal force from the ground.