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Depending on the context depends on the reason. The usual reason is usually to reduce the amount of energy something needs to move.
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∙ 14y ago
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Is friction something we want to reduce?
No. Walking is tough without it.
Do you want to reduce friction when you are sitting on a park bench?
Normally you would not want to do so. If there was no friction, you would slip right off the bench onto the ground. You need some friction in order to stay in one place.
Why wouldn't you want to reduce the friction involved in using a winding road?
Because if there is less friction, the road would be very slippery, therefore more dangerous
What places need friction?
If you were roller-skating you don't need friction because it slows you down. Well you want friction between the wheels and the floor (so you do not slip sideways) but not between the wheel and the axel (thats why you have ball bearings there to reduce rolling friction). If you are ice skating you do not want friction between the blade of your skates and the ice.
How can you decrase friction?
Depends what you want to increase/decrease friction on. If is like a weight on the floor.. Then to increase the friction all you have to do is increase the weight, To reduce it you either reduce the weight or get a smoother surface, or maybe a cloth in-between the floor and the weight.
Is friction something we want to reduce?
No. Walking is tough without it.
How do cyclists reduce friction in the velodrome?
Professional bike riders want to reduce friction, because friction is a force of two objects rubbing up against each other, therefore slowing you down.
Do you want to reduce friction when you are sitting on a park bench?
Normally you would not want to do so. If there was no friction, you would slip right off the bench onto the ground. You need some friction in order to stay in one place.
Why wouldn't you want to reduce the friction involved in using winding road?
Because if there is less friction, the road would be very slippery, therefore more dangerous
Why wouldn't you want to reduce the friction involved in using a winding road?
Because if there is less friction, the road would be very slippery, therefore more dangerous
Is there any friction when you are roller skating?
Yes, that's why the Zamboni must come out to refreeze the ice and fill in the grooves. The blade heats the ice slightly as it skates over it. It creates the grooves because it melts the ice where it glides.
What places need friction?
If you were roller-skating you don't need friction because it slows you down. Well you want friction between the wheels and the floor (so you do not slip sideways) but not between the wheel and the axel (thats why you have ball bearings there to reduce rolling friction). If you are ice skating you do not want friction between the blade of your skates and the ice.
How can you decrease the friction between your hands and a piece of equipment?
I am not sure if you would want to decrease the friction on your hands, because in the case of using a screwdriver, for example, the friction causes your hand not to slip. However, in a situation where it may be beneficial to reduce friction, anything from sweaty palms to greasy palms would work. (they reduce the frictional coefficient) As an alternative, since frictional force is F = mu * N, you can also reduce F by reducing N (the normal or perpendicular force). In other words, if you want to decrease the friction, don't hold the piece of equipment as tightly.
Is friction something you want to reduce?
no, actually many inventions or things work on the basis of friction for example a pen it works on the basis of friction.Anything that would once be in motion would never stop.
How can you decrase friction?
Depends what you want to increase/decrease friction on. If is like a weight on the floor.. Then to increase the friction all you have to do is increase the weight, To reduce it you either reduce the weight or get a smoother surface, or maybe a cloth in-between the floor and the weight.
Is friction always something we want reduce?
NO!You very much need to increase friction between car tires and the road surface in winter. Accumulated snow and ice can already reduce friction there to the point that stopping and steering the car becomes impossible leading to many severe and occasionally fatal accidents.Vehicle brakes also need as much friction as possible to efficiently stop the vehicle when needed.Sandpaper and other abrasives depend on friction to smooth and clean surfaces.etc.
Examples of when you want less friction?
If you were roller-skating you don't need friction because it slows you down. Well you want friction between the wheels and the floor (so you do not slip sideways) but not between the wheel and the axel (thats why you have ball bearings there to reduce rolling friction). If you are ice skating you do not want friction between the blade of your skates and the ice.
