fricton
friction
We see tectonic plates pushing together in what is called a convergent plate boundary.
The phenomena of sending back of light is called reflection of light. And the surfaces which reflects light back are called reflecting surfaces.
plasma membrane of the cell
This property is called cleavage.
Rubbing two surfaces together creates friction, which expresses itself as heat. It is possible that static electricity will also be created (probable, actually), but there may or may not be a visible result of the buildup and/or neutralization of the charge (and usually there isn't). The force of friction derives from the electromagnetic forces of atoms and their electrons, so it is atomic and molecular forces that give rise to the phenomenon of friction. There are a lot of variables involved when two surfaces come into contact and move past one another. A link to the Wikipedia post on friction is provided. Heat is studied under the heading thermodynamics, and you'll need to fasten your seatbelt when you get ready to surf over there. An additional link is provided.
Tiny collisions on the surfaces, called microwelds, cause friction.
friction
We see tectonic plates pushing together in what is called a convergent plate boundary.
The sound is actually called a Pleural rub.
The force when two materials rub together is called friction. Friction is a resistive force that opposes the relative motion or tendency of motion between two surfaces in contact. The magnitude of the frictional force depends on factors such as the nature of the surfaces and the force pressing them together.
The unbalanced force that opposes motion between touching surfaces is called friction. It acts in the opposite direction of the applied force and depends on the nature of the surfaces and the force pressing them together. Friction can be reduced by using lubricants or by increasing the smoothness of the surfaces.
The force exerted by air in all directions is called air pressure. It is caused by the collisions of air molecules with surfaces. Air pressure is exerted equally in all directions and decreases as altitude increases.
what are marine animals with piny rough surfaces called
Accretion
"conduction"
flat surfaces on any polyhedron are called faces
The breaking of a mineral along irregular surfaces is called a fracture. The splitting of a mineral along smooth, flat surfaces is called cleavage.