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Oil fills in the gaps (bumps on every surface at microscopic level) of machine parts to reduce friction, damage and heat. If there weren't any oil, the engine would only last minutes before it would melt down. The oil reduces friction but doesn't get rid of it completely....If this answer isn't very good, I'm sorry im just 12:)
What else can I help you with?
What is the relationship between friction and efficiency of a machine?
The relationship between friction and the efficiency of a machine is when friction increases, efficiency decreases, and vice versa. That is why you can never have 100% efficiency, because there is always at least a little friction. They are inversely proportional, meaning, higher friction equals less efficiency.
How can you reduce friction on surfaces?
Basically all you need to do is make the surfaces smoother. Depending on the material, this can be accomplished by sanding, painting, etc. Adding a lubricant such as oil, grease, water, etc. will also reduce the friction between two surfaces. Another thing that can be changed is the kind of friction. For example, rolling friction is generally less than sliding friction. Fluid friction is lesser still than rolling friction. Applications where friction is decreased for better working stuff are things such as: rollerblades, skate boards, air hockey tables, snow boards, and surf boards.
How are you able to minimize or maximize friction?
Friction can be minimized by using lubricants between surfaces to reduce direct contact and increase smoothness. To maximize friction, increasing the roughness of surfaces in contact can help promote better grip and traction. Additionally, applying more force perpendicular to the surfaces in contact can also increase friction.
How is traction affected by friction?
Traction is affected by friction because friction is the force that resists the motion between two surfaces in contact. When there is more friction between the tires of a vehicle and the road surface, there is better traction, allowing the vehicle to grip the road better and move forward more effectively. Conversely, if there is less friction, such as on a slippery surface, traction is reduced, making it harder for the vehicle to maintain control and move forward.
What happened to the coefficients of friction as the weight increases?
Nothing. The coefficient of friction is constant, as it is dependent on the surfaces that are interacting. Normal force increases as an objects mass increases (Be careful with the word "weight", as it denotes the effect of gravity) in a constant gravitational field. This normal force is what causes an increase in friction.
What Has the greatest amount of friction between solid surfaces?
Solids that are actually glued, or better yet soldered, together.
What is the relationship between friction and efficiency of a machine?
The relationship between friction and the efficiency of a machine is when friction increases, efficiency decreases, and vice versa. That is why you can never have 100% efficiency, because there is always at least a little friction. They are inversely proportional, meaning, higher friction equals less efficiency.
How can you reduce friction on surfaces?
Basically all you need to do is make the surfaces smoother. Depending on the material, this can be accomplished by sanding, painting, etc. Adding a lubricant such as oil, grease, water, etc. will also reduce the friction between two surfaces. Another thing that can be changed is the kind of friction. For example, rolling friction is generally less than sliding friction. Fluid friction is lesser still than rolling friction. Applications where friction is decreased for better working stuff are things such as: rollerblades, skate boards, air hockey tables, snow boards, and surf boards.
How are you able to minimize or maximize friction?
Friction can be minimized by using lubricants between surfaces to reduce direct contact and increase smoothness. To maximize friction, increasing the roughness of surfaces in contact can help promote better grip and traction. Additionally, applying more force perpendicular to the surfaces in contact can also increase friction.
How is traction affected by friction?
Traction is affected by friction because friction is the force that resists the motion between two surfaces in contact. When there is more friction between the tires of a vehicle and the road surface, there is better traction, allowing the vehicle to grip the road better and move forward more effectively. Conversely, if there is less friction, such as on a slippery surface, traction is reduced, making it harder for the vehicle to maintain control and move forward.
What happened to the coefficients of friction as the weight increases?
Nothing. The coefficient of friction is constant, as it is dependent on the surfaces that are interacting. Normal force increases as an objects mass increases (Be careful with the word "weight", as it denotes the effect of gravity) in a constant gravitational field. This normal force is what causes an increase in friction.
How does grease or oil affect the coefficient of friction?
Grease or oil reduces the coefficient of friction between surfaces by providing a lubricating layer that allows them to slide more easily over each other. This reduces frictional resistance and lowers the force required to move the surfaces.
Does coefficient of kinetic friction depend on weight?
No, the coefficient of kinetic friction does not depend on weight. It is a property of the surfaces in contact and represents the resistance to motion between them. Weight does not directly affect the coefficient of kinetic friction.
How can you realate friction?
Friction is the force that opposes motion between two surfaces in contact. It can affect the speed and efficiency of moving objects by creating resistance. Understanding friction allows us to design better systems and materials to minimize its effects and improve performance.
How does an object move on a rough and on a smooth surface?
It is on smooth surfaces because the amount of friction is less.
Why is it important to reduce friction in joints?
to prolong live and it will take less force to get it moving
Give some examples to show that friction is increased deliberately?
One example is using sandpaper to increase friction between objects. Another example is applying anti-slip mats or tapes to surfaces to prevent sliding. Additionally, car tires are designed with treads to increase friction with the road for better traction.
