question_answer Answers(7)
if the friction vanishes ,we are not able to stand ,there is no grip the hands to hold the things, the nail will not fixed in the wall,and also we canot stop any object or ourself,we continuosly slips on the floor.it is difficult to imagine the world with out the friction.
What will happen if friction disappeared from the earth give at least 10 examples?
1: You will not be able to write. 2: No riding cycle, bike and not even a car or bus. 3: No machines in companies and so no mechanics. 4: You would have not been able to sit, walk, run or dance.
Can we live without friction?
A world without friction would be unlivable. … The reason why friction is so important to our world, is because it affects everything that’s in motion. When any object is moving, slipping or sliding in one direction, friction is acting in the opposite direction. So, for example, consider something as simple as walking.
What would life without friction?
In a world without friction, the object would continue to slide forever, if not acted on by another force. … It states that an object at rest will stay at rest unless acted on by another force, and an object in motion will stay in motion unless acted on by another force.
Does friction slow you down?
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 might happen if there is no friction give 5 examples?
Friction stops things from sliding apart. If there was no friction everything would slide to the lowest point. It would be impossible to climb up anything. Imagine trying to climb a wall of ice without crampons and an ice pick.
What would be easier to do without friction?
Without friction, energy transfer would be easier and stopping motion would be more difficult. If there was no friction, there would be no force slowing down motion when two objects rubbed against one another.
How can fluid friction be reduced explain with examples?
Answer: The fluid friction or drag can be reduced are minimised by giving special shape called streamlined shape to the objects which Move through fluids like air or water . … For example: 1)Cars are built with streamlined body shape to reduce air resistance or drag caused by a air.
Why is friction a disadvantage?
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.
How can you increase or decrease friction?
To reduce friction we can make the surfaces in contact smooth. Also adding a lubricant to two surfaces in contact reduces friction between them. Grease is added between the moving parts in machines, to reduce friction. Another method of reducing friction is by using bearings.
Which friction is the largest?
Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest.
How is friction important?
Friction always slows a moving object down. … 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.
How is fluid friction reduced?
Methods of reducing fluid friction
The fluid friction or drag can be reduced are minimised by giving special shape called streamlined shape to the objects which Move through fluids like air or water .
Where friction is not useful?
Friction is sometimes unhelpful.
For example, if you don’t lubricate your bike regularly with oil, the friction in the chain and axles increases. Your bike will be noisy and difficult to pedal. When there is a lot of friction between moving parts, energy is lost to the surroundings as heat.
What happens if there is too much friction?
Friction is a force that opposes motion between any surfaces that are touching. Friction can work for or against us. … On the other hand, too much friction between moving parts in a car engine can cause the parts to wear out. Other examples of friction are illustrated in the two Figures below and below.
Does ice have friction?
The current consensus is that although liquid water at the ice surface does reduce sliding friction on ice, this liquid water is not melted by pressure but by frictional heat produced during sliding. … Mischa Bonn from MPI-P, have now demonstrated that friction on ice is more complex than so far assumed.
What is called static friction?
Static friction is a force that keeps an object at rest. Static friction definition can be written as: The friction experienced when individuals try to move a stationary object on a surface, without actually triggering any relative motion between the body and the surface which it is on.
Can friction speed up?
Can friction ever speed things up? ANSWER: Yes! Static friction between your feet and the floor is what allows you to walk! Walking certainly involves speeding up, and this would not be possible if the floor were frictionless or covered in marbles!
Can friction help you speed up?
Friction is the force between two objects in contact with each other that will resist an attempt to move them. … Friction can slow things down and sometimes make things go faster because of the grip that it causes.
Which has least friction?
Rolling friction produces the least friction.
Why can’t we walk without friction?
Frictional forces oppose an object’s motion or intended motion. Depending on the circumstance, this can be good or bad. Without friction, we wouldn’t be able to walk, run, or drive our cars. … Without friction, our feet would slide over the ground and motion would look similar to cartoon characters running in place.
What is the weakest type of friction?
Rolling friction is the weakest kind of friction. It is the force that resists the motion of an object rolling across a surface.
How is friction calculated?
The formula to calculate the coefficient of friction is μ = f÷N. The friction force, f, always acts in the opposite direction of the intended or actual motion, but only parallel to the surface.