friction
force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other
atmospheric friction
friction between an atmosphere's gas and an object that travels through the atmosphere
dynamical friction
loss of momentum and kinetic energy of moving bodies through gravitational interactions with surrounding matter in space
Skin friction drag
type of aerodynamic drag
traction
physical process in which a tangential force is transmitted across an interface between two bodies through dry friction or an intervening fluid film resulting in motion, stoppage or the transmission of power
Friction Acoustics
acoustics of Friction