0
Friction slows something down, so you'll need it when you drive the car (the brakes apply friction to the tires and you stop) and when you hold onto something (your hands apply friction to a credit card, thus enabling you to hold it), among others.
You don't need it in some machinery (lubricants and bearings), among others.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Is friction necessary for motion?
No. Friction is just necessary for controlling motion.
Advantages of friction a necessary evil?
A necessary evil means that friction has advantages as well as disadvantages so it called as necessary evil. Advantages of friction areits helps us to walkto writedriving car, etc,
Why is friction a disadvantage?
Loss of energy. Any way friction is a necessary evil
What force must you overcome to start an object moving?
Friction. Specifically, static friction. After the object begins to move, it will still be necessary to overcome rolling or sliding friction to keep it in motion.
Why is friction not necessary?
During solving the questions (In Physics) sometimes we consider the bodies frictionless but friction exists. : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : sorry mom calling(:P)
Is friction necessary for motion?
No. Friction is just necessary for controlling motion.
Advantages of friction a necessary evil?
A necessary evil means that friction has advantages as well as disadvantages so it called as necessary evil. Advantages of friction areits helps us to walkto writedriving car, etc,
What parts of a bicycle is friction necessary and what parts are not necessary?
The bearings don't need friction, but everything else does. It there wasn't any friction it'd be impossible to bolt anything together.
Why is friction a disadvantage?
Loss of energy. Any way friction is a necessary evil
How are friction and force related?
friction increases the amount of force necessary to do work
In what ways can friction be helpful?
Friction is necessary for wheels to rotate and nails to keep in walls.
Why is friction called a necessary evil?
Friction is necessary : If there is no friction between any two surfaces in contact, then the present day civilization will be no more- as we cannot even walk properly on the earth. There will be no fabrics and garments, no construction of buildings and no furniture, even no cooking and no vehicles. So friction is necessary. But too much friction causes a heavy loss of energy, wear and tear of machinery. Thus, the efficiency of machines will decrease tremendously. So, it is rightly said that friction is a necessary evil.
Does friction play a necessary role in a roller?
It keeps the roller down and creates friction to allow the roller to move.
Why is friction necessary for brakes?
Because friction acts against an object in motion causing it to slow down. Brakes does the same thing.
Why is friction called a evil?
friction is called a necessary evil because we cannot completly avoid it an actually it is used in many cases.
How is friction good and bad?
Friction is good because it provides traction. Friction is necessary for people to stand, or for vehicles to accelerate or break. Friction can also be used to convert kinetic energy to heat or electrical energy. Friction can be bad because kinetic energy is can be lost to friction.
Prove that friction is a necessary evil?
Yes necessary evil. If friction is totally absent then no wheel could roll on the road. No chance of walking on the floor. We cannot hold even the pen. Same time too much of friction would bring a terrible loss of energy.
