lysosomes
Heat necessary to lit a match comes from friction between match head and the surface. Smooth surface gives way less friction.
the slope of static friction & normal force represents "coefficient of friction' which is constant for a particular surface
Articular Cartilage
I think you're thinking of the integumentary system to which the largest organ of the human body, skin, belongs to.
The external parts of the ear are located in the temporal region of the head.
friction creates heat. Largely heat, which comes from the external agent energy causing the friction. Also some possible rearrangement of the atomic/molecular structure of the surface, and the energy for that also comes from the external agent.
The larger the contact surface, the more friction. The more uneven the surface, the more friction. The material of the surface has also an effect on friction.
Surface friction ALWAYS point parallel to the surface and opposite motion. There must be a normal force for there to be friction
Friction depends on the surface that the object is going against. If an applied force is used to push a box on a ground, the friction is the surface of the ground, may the ground be rough or smooth, there is a force that goes against the applied force. Air friction is also a type of friction that many physics question does not account for, because it is a virtually small force.
more rough surface more friction object have
Plane surface with negligible friction.
friction
the rougher the surface is, the more friction there will be
the smoother a surface is, the less friction it produces.
Rough surface provides lot of friction.
if the mass is more than the friction is high. and if the surface is rough then also the friction is more. thus we can say that both mass and surface type affects friction.
A force that resists motion of one surface across another surface is called FRICTION(or FRICTIONAL FORCE)