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How does increased friction affect the actual mechanical advantage of a machine?
Increased friction reduces the actual mechanical advantage of a machine because more of the input force is used to overcome friction rather than move the load. This results in less of the input force being effectively transferred to the load, decreasing the overall efficiency of the machine.
What fraction affect the friction force between two surface?
The friction force between two surfaces is affected by the nature of the surfaces in contact (roughness, material), the normal force pressing the surfaces together, and the presence of any lubricants or contaminants. It is not necessarily represented as a fraction, but rather as a coefficient of friction that quantifies the relationship between the friction force and the normal force.
Is friction the speed of an object?
Friction is a force that resists the motion of an object as it moves across a surface. It is not the speed of an object, but rather a force that acts opposite to the direction of motion, slowing down the object.
Why is oil important in a car?
Because it lubricates. Instead of metal-on-metal contact, it puts a film of oil between the metal components, so that it's fluid friction, rather than friction between two solids - the latter of which causes excess wear and can actually fuse components together.
What is the force which tends to present motion between two surfaces called?
If you meant "prevent" motion, rather than "present" motion, the answer is friction.
What situations is friction reduced?
Friction can be reduced in situations where lubricants like oil or grease are applied between surfaces, creating a slippery layer. Using ball bearings can also reduce friction by allowing smooth rolling rather than sliding. Additionally, polishing or smoothing out the surfaces in contact can decrease friction.
How come dragons have large butts?
They don't. They have rather narrow pelvis'
How does surface area affect friction?
Surface area does not directly affect friction; rather, friction is related to the roughness of the surfaces in contact. An increase in surface area may lead to an increase in friction if there are more contact points between the surfaces. However, the type and condition of the surfaces, as well as the force pressing them together, also play a significant role in determining friction.
Friction doesnt convert energy it actually destroys?
Friction does not "destroy" energy, but rather it transforms some of the mechanical energy into heat energy due to the resistance between two surfaces in contact. This transformation of energy can lead to a loss of usable energy in a system.
Has modernization put an end to discrimination?
No. Rather it has increased it.
How can the efficiency of an inclined plane be increased?
Efficiency is the ratio of power output to power input. It is not the ratio of forces or distances. You can move a load using less force by reducing the gradient of the plane. But what you gain in reduced force you lose in having to travel a greater distance to raise the load through the same height. There is, therefore, no net advantage. The only way to increase the efficiency is to reduce the friction. This can be done by lubricating the plane, or load (or both), or by placing rollers between the load and the plane - so that there is rolling friction rather than sliding friction.
Does friction makes objects move faster over an inclined plane?
No, friction tends to oppose the motion of objects moving over an inclined plane, which can make them move slower rather than faster. The amount of friction between the object and the surface of the inclined plane can affect how quickly the object accelerates or decelerates while moving.
