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What is the mathematical equation for friction?
An important formula is that friction = (coefficient of friction) x (normal force).
What force occurs when objects come into contact?
Friction.
Force that resists motion between objects in contact?
Friction
What is the metric unit for friction?
A friction is a force, so it would be measured in newtons. The coefficient of friction, on the other hand, is a ratio between two forces, so it is dimensionless.
What is The relationship between weight and frictional force?
Weight is extremely useful in determining the frictional force on an object. Say we have a box on a level surface. The box has a weight of mg(mass times the gravitational constant). Since the box is still, and it is being supported by the ground, there is an equal and opposite force that is being exerted on the box by the ground, which pushes it up. This is known as the normal force. The force of Friction is defined as the greek letter mu(which is the coefficient of friction for the two materials against each other)times the normal force, which in this case is mg. Mu also varies depending on wether or not the box is moving in contact with the ground. A different coefficeint of friction is used instead of the one when the box is at rest. The frictional force on the object is always greater when the object is at rest than when it is sliding. Hope this helps!
How is force of friction useful to us?
it is a mebr in the gavde
Friction is inveitable but it has disadvantages why?
Friction is a force that must be overcome for no useful purpose. It takes energy to do this, and thus is wasteful.
What is the force that brings nearly everything to a stop also useful for mountain climbers and baseball players?
That force is called friction.
What is frictional force and its uses?
Friction is a force that is generated when two surfaces rub against each other. It is useful for preventing slipping or sliding.
Is friction a useful force?
Yes because when you play a game of tug of war you just pull it and the other push it
When is friction a useful force that acts between objects?
Most forms of conventional movement require friction. For example, a car could not go anywhere if not for the the friction between the rubber tire and the road surface.
Describe 3 examples where low friction is not useful?
Friction is very useful but it has its own disadvantages. Friction causes wear and tear. Friction spoils the soles of our shoes. friction reduces speed This is all wrong some not useful types of friction are are when airplanes fly the friction causes heat that materials that will withstand which are costly.
Which force slows down a ball when it moves?
The force of friction, which is the normal force (weight) multiplied by the coefficient of friction (how rough the carpet is).
Does brakes on a bicycle have a lot of friction or not much and is it useful or not useful?
Brakes are meant to have a lot of friction and it's useful.
Which is the larger the kinetic friction force or the statical friction force?
Statical friction
Is friction a natural force?
friction is a natural force
What are the two factors that affect the friction force between two surfaces?
The strength of the force of friction depends on the types of surfaces involved and on how hard the surfaces push together.
