What 3 things affect friction?

Answer 1

Friction always occurs between two or more objects, not between a single object as the question asks. The three factors that determine the amount of resistive force (friction) between two objects in contact are:

1. The magnitude of the force binding the two objects together. If one object is the ground, then this bind force is the force due to gravity. In a disk braking system, then the binding force is the force of the brake pad pressing against the brake disk.
2. The magnitude of the force, and/or inertia, causing one object to rub or drag against the other. In a braking system, the force comes from the engine and the inertia is dependent on the speed and the mass of the vehicle.
3. The Coefficient of Friction of the two surfaces facing each other. In a braking system, this is sort-of equivalent to the 'roughness' of the surface of the brake pad when rubbed against the spinning brake disk.

Answer 2

the factors on which the frictional force in fluids depends :-

1. on its speed with respect to the fluid

2. on the shape of the object

3. on the nature of the fluid

Answer 3

Three things that affect friction are the smoothness of the surface, the smoothness of the surface opposing the first surface, and how much force is being put into an object.

Answer 4

oils can affect friction because it makes the surface slippy

the surface smoothness

the items smoothness

Answer 5

Temperature, viscosity, flow rate

Answer 6

Temperature, Viscosity, Flow Rate