What is friction?

Question

What do we mean by the word friction?

Answer 1

In general, friction refers to reactions or natural phenomenas (interm of force[s]) that will arise when a real object (or something that is abstract in nature, for example an activity, action, or work) touches, moves, or changes places in or on a medium (air, water, asphalt, ets). Whatever its form, this phenomenon can be small (insignificant until it is often ignored) or large enough (to be considered significant and must be taken into account).

In the scientific world (natural law), the direction of friction of real object will always be considered opposite to the direction of motion or displacement of the object. This is very dominant. Meanwhile, beyond that, especially for abstract objects, the direction of the friction is not always opposite to the direction of the movement or displacement.

In the real world, in fact, objects that move in the air media also get friction which is called air resistance (drag) so that it affects the motion of a basketball or vollyball (for example), but in some cases this type of friction is ignored. Meanwhile, objects moving on the road surface (asphalt) will get two frictions (opposite forces); beause it moves in the air medium and also touches the road surface. In this case, what is considered significant is the friction because it touches (moves) on the road surface. Meanwhile, for abstract cases, for example "collecting trash on the street", what will emerge is community support; not the friction that we often encounter in the literal sense although this is also a friction as per the definition above.

Part of the purpose of friction is: (1) to show humans that every action, chages, or movement must have a reaction (which is usually an) obstacle (small or big), and (2) to ensure that motivation, resources, and/or the power (interm of forces) possessed is sufficient to fullfill its purpose ("moving" system, model, or real/abstract object).

Comments

This is well articulated, detailed and can help a novice to understand. Your time and effort is really appreciated.

Answer 2

When a body slides over the surface of another body, there is an opposing force acting opposite to the direction of motion.. It is a vector quantity which exist in solid, liquid, and gas.

Answer 3

Friction is a force that opposes motion or the tendency for motion between two surfaces in contact with each other. It occurs whenever two objects are in contact with each other and one object tries to move or slide past the other. The amount of friction depends on the nature of the surfaces in contact and the force pressing them together.Friction can be useful in some situations, such as allowing us to walk or drive vehicles, but it can also be a hindrance in other situations where we want to minimize friction, such as in machinery where friction can lead to wear and tear.

Answer 4

When a body slides over the surface of another body, there is an opposing force acting opposite to the direction of motion. This opposing force is called friction.

So, we could simply put friction as a form of force that opposes or prevents the relative sliding motion of objects in contact with surfaces. It is a vector quantity which exist in solid, liquid, and gas.

Answer 5

a form of force that opposes or prevents the relative sliding motion of objects in contact with surfaces. It is a vector quantity which exist in solid, liquid, and gas.

Answer 6

Whatever its form, this phenomenon can be small (insignificant until it is often ignored) or large enough (to be condidered significant and must be taken into account).

Answer 7

Friction is the force that resists the relative motion of two objects that are in contact. It is the force that causes objects to slow down or stop when they are moving. Friction is also the force that allows us to grip objects and walk without slipping.

Answer 8

force that resists the sliding or rolling of one solid object over another. Frictional forces, such as the traction needed to walk without slipping, may be beneficial, but they also present a great measure of opposition to motion.