Question

friction meaning briefly​

Answer 1

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. When surfaces in contact move relative to each other, the friction between the two surfaces converts kinetic energy into thermal energy. This property can have dramatic consequences, as illustrated by the use of friction created by rubbing pieces of wood together to start a fire. Kinetic energy is converted to thermal energy whenever motion with friction occurs, for example when a viscous fluid is stirred. Another important consequence of many types of friction can be wear, which may lead to performance degradation or damage to components. Friction is a component of the science of tribology.

There are mainly four types of friction: static friction, sliding friction, rolling friction, and fluid friction.

Hope this helps :D

Answer 2

Answer:

Friction is a force between between two surfaces that are sliding or trying to slide across each other. The force of friction acts in a direction opposite to the direction in which the object moves. Friction is caused by the interlocking of irregularities in the surfaces of the two objects which are in contact with each other.

The friction between two surfaces depends on two factors:

i》The nature of two surfaces (smoothness or roughness of two surfaces).

ii》The force with which two surfaces are pressed together.