What are lubricants give an example
External lubricants provide metal release and aid in lowering process temperature. Common examples of external lubricants include PE waxes, paraffin, metal soaps, esters (high esterification), amides, and fatty acids. Examples of internal lubricants include fatty alcohols, esters (low esterification), and EVA wax.
What is lubricant Ncert Class 8
Fluid friction can be reduced by giving the objects moving in the fluids appropriate shapes. A lubricant is a substance that is introduced between two surfaces in contact to reduce friction.
What are lubricants short answer
According to its nature, lubricants are also used to eliminate heat and wear debris, supply additives into the contact, transmit power, protect, and seal in addition to controlling (more frequently reducing) friction and wear of the surfaces in a contact of the bodies in relative motion .
What are lubricants in physics
A lubricant, also known as “lube,” is a substance (often a liquid) that is used to reduce friction between two moving surfaces in order to increase efficiency and decrease wear. They may also be used to transport or dissolve foreign objects, as well as to distribute heat.
What is meant by lubrication Why is it important for Class 8
It is important because it reduces friction between the parts of the machine.Jun 10, 2019 Lubrication is the application of an additive to the parts of a machine to reduce friction.
Why are lubricants used
A lubricant is a substance that aids in reducing friction between surfaces that are in contact with one another, which in turn reduces the heat produced when the surfaces move. It may also have the ability to transmit forces, transport foreign particles, heat or cool the surfaces.
What is a lubricating oil
A class of refined products called lubricating oil is used to lessen wear and friction between bearing metallic surfaces. It is distinguished from other crude oil fractions by its high (>340°C) boiling-point region.
What is friction definition for Class 8
When two surfaces of an object come into contact, a force called friction opposes the relative motion between the surfaces, always acting in the opposite direction to the applied force.
What is sound 8th class
Musical sound is a sound that produces a pleasing effect to the ear, whereas noise is defined as a sound that creates a jarring or an unpleasant effect. Sound is defined as the vibrations that can travel through any medium, like air, and can be heard when the vibrations reach an individual or an animals ear.
What is drag in science class 8
A drag force is the resistance created when a body moves through a fluid, like air or water, acting in the opposite direction to the flow velocity.
What is lubricant friction
From: Encyclopedia of Biomedical Engineering, 2019. Lubricated friction is a type of fluid friction where a lubricant separates two solid surfaces.
What is Time Period for Class 8
The Time Period is the number of vibrations or the number of repeating events per unit of time and is denoted by T. Its unit is seconds. Frequency is the number of vibrations or the number of repeating events per unit of time and is expressed in terms of Hertz.
What do you mean by vibration class 8
The to-and-fro or back-and-forth motion of an object is known as vibration.
What causes friction Class 8
The two surfaces in contact lock together their irregular projections to create friction.
What are lubricants give examples Class 8
The property of reducing friction between two particles is known as lubricity. Examples include oil and grease. Lubricant is a substance used to reduce friction between surfaces in contact, which reduces the heat generated when the surfaces move.
What are lubricants answer
According to its nature, lubricants are also used to eliminate heat and wear debris, supply additives into the contact, transmit power, protect, and seal. Definition: Lubricant is a substance that is used to control (more often to reduce) friction and wear of the surfaces in a contact of the bodies in relative motion.
What is lubrication
Meaning of Lubrication Lubrication is the introduction of a friction-reducing film between moving surfaces in contact to control friction and wear. The lubricant used may be a liquid, solid, or plastic substance.
What is lubricant in biology
Physics. Science for Eighth Class. Lubrication is the control of friction and wear by the introduction of a friction-reducing film between moving surfaces in contact. The lubricant used can be a fluid, solid, or plastic substance.