In: Physics
Types of forces at the nanoscale
van der Waals: Van der Waals forces' is a general term used to define the attraction of intermolecular forces between molecules. There are two kinds of Van der Waals forces: weak London Dispersion Forces and stronger dipole-dipole forces.
Electrostatic: Force between electric charges. If the two charges have the same sign, theelectrostatic force between them is repulsive; if they have different sign, the force between them is attractive. An electric field is a vector field that associates to each point in space the Coulomb force experienced by a test charge. Magnetic: The force which is perpendicular to both the field and velocity of the particle
Molecular: The forces acting between the molecules.
Entropic: Entropic force acting in a system is a phenomenological force resulting from the entire system's statistical tendency to increase its entropy, rather than from a particular underlying microscopic force.