Admin Can the force of friction change?
For one, the static frictional force will change its value based on how much force is being applied to the unbudging object. Imagine, for example, trying to slide a heavy crate across a concrete floor. You may push harder and harder on the crate and not move it at all.
Can friction can be reduced to zero?
No, we cannot have zero friction surfaces. We can reduce the friction but we can never reduce it to zero because every surface will still have minor in them. A frictionless surface is not possible is not possible because the surface cannot have a zero friction surface.
What is the main cause of friction?
Friction is caused due to the irregularities of the surfaces in contact. The coefficient of friction depends on both the surfaces in contact. It is not a characteristic property of any substance. Molecular adhesion is the attraction between the molecules of two different surfaces.
What happens if we do not reduce friction?
If we don’t reduce the friction in machines, it will damage the parts of machinery due to the excess generation of heat. Also, if the friction is not reduced, it requires more power to complete the task.
How can we reduce the friction explain?
Force | Short/Long Answer Questions
- Polishing the rough surface.
- Oiling or lubricating with graphite or grease the moving parts of a machine.
- Providing all bearings or wheels between the moving parts of a machine or vehicles reduce friction and allow smooth movement as rolling friction is less than sliding friction.
What are three ways to reduce friction?
Generally, there are three ways to reduce friction: 1. The use of bearing surfaces that are themselves sacrificial, such as low shear materials, of which lead/copper journal bearings are an example. 2. Replace sliding friction with rolling element friction, such as with the use of rolling element bearings.
Which are methods reduce friction?
Make surfaces smooth by grinding
What can reduce friction?
A common way to reduce friction is by using a lubricant, such as oil, water, or grease, which is placed between the two surfaces, often dramatically lessening the coefficient of friction. The science of friction and lubrication is called tribology.