Table of Contents
Is friction not desirable?
Friction is Desirable: A friction is very much desirable to stop the body from its moving condition. If there is no friction between the contact surfaces, then a body can’t be stopped without the application of external force. Thus friction is desirable or undesirable depending upon the condition and types of work.
Which friction is undesirable?
friction between moving parts in machines is undesirable, because the moving parts rub against each other, heat up, and wear out. Friction can be reduced by lubricating the surfaces.
How is friction sometimes undesirable for us?
1. Friction causes wear and tear of machine parts that rub against each other continuously, leading to costly maintenance. 2. Additional energy is consumed to overcome friction, in addition to the physical work required for actual work.
Why friction is desirable and undesirable?
Friction is Desirable: A friction is very much desirable to stop the body from its moving condition. If the friction is more between the block and inclined surface then a large force is required to push the block on the plane. Thus friction is desirable or undesirable depending upon the condition and types of work.
In which case friction is disadvantage?
While running a machine, energy is lost because of friction. Hence, in this case, friction is a disadvantage.
What are the undesirable effects of force?
1. Force can change the state of motion. Force can make a moving object stop and also make a stationary object move. The magnitude and the direction of the force on the body are important to change the state of motion.
What is disadvantage of friction?
Three disadvantages of friction are : Friction produces heat which damages the moving parts of a machine. Friction produces wear and tear on the contacting surfaces. This reduces the life of machine parts, tyres and shoe soles. A lot of energy is wasted in overcoming the friction before an object starts moving.
How is friction bad?
Friction reduces the speed of the moving objects and it even stops the motion of the object. Friction between the objects produces heat. There will be wear and tear of the machine parts due to friction. …
What is an example of undesirable friction?
What is undesirable friction? An example of undesirable friction is when a cyclists falls and his face against pavement that skin on the road. Undesirable friction is something that is not controllable. Is Friction is always undesirable true or false?
What is the importance of friction in rugby?
Desirable in scrummaging when the two packs form together. Without friction they would slip off which is dangerous. Friction is also desirable when making the tackle. And when sidestepping you need good grip.
Does friction slow you down in the pool?
If you’re in competitive swimming, friction will only slow you down, so the answer is no.However, without it, you’ll simply fall like a rock to the bottom of the pool or ocean or wherever you’re swimming.