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2. Newton's laws of motion - Wikipedia

   en.wikipedia.org/wiki/Newton's_laws_of_motion

   [10] [11] Moreover, words which are synonymous in everyday speech are not so in physics: force is not the same as power or pressure, for example, and mass has a different meaning than weight. [12] [13]: 150 The physics concept of force makes quantitative the everyday idea of a push or a pull. Forces in Newtonian mechanics are often due to ...

3. Envelopment - Wikipedia

   en.wikipedia.org/wiki/Envelopment

   The friendly forces can choose to attack the pocket or invest it (to stop resupplies and to prevent breakouts) and wait for a beleaguered enemy to surrender. A vertical envelopment is "a tactical maneuver in which troops, either air-dropped or air-landed, attack the rear and flanks of a force, in effect cutting off or encircling the force". [4]

4. Contact force - Wikipedia

   en.wikipedia.org/wiki/Contact_force

   A contact force is any force that occurs as a result of two objects making contact with each other. [1] Contact forces are very common and are responsible for most visible interactions between macroscopic collections of matter. Pushing a car or kicking a ball are some of the everyday examples where contact forces are at work.

5. Stiction - Wikipedia

   en.wikipedia.org/wiki/Stiction

   Stiction (a portmanteau of the words static and friction) [1] is the force that needs to be overcome to enable relative motion of stationary objects in contact. [2] Any solid objects pressing against each other (but not sliding) will require some threshold of force parallel to the surface of contact in order to overcome static adhesion. [3]

6. Force - Wikipedia

   en.wikipedia.org/wiki/Force

   The normal force, for example, is responsible for the structural integrity of tables and floors as well as being the force that responds whenever an external force pushes on a solid object. An example of the normal force in action is the impact force on an object crashing into an immobile surface. [4]: ch.12 [5]

7. Orders of magnitude (force) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude_(force)

   Maximum force of a molecular motor [8] 10 −11 10 −10 ~160 pN Force to break a typical noncovalent bond [8] 10 −9 nanonewton (nN) ~1.6 nN Force to break a typical covalent bond [8] 10 −8 ~82nN Force on an electron in a hydrogen atom [1] 10 −7 ~200nN Force between two 1 meter long conductors, 1 meter apart by an outdated definition of ...

8. Hooke's law - Wikipedia

   en.wikipedia.org/wiki/Hooke's_law

   In physics, Hooke's law is an empirical law which states that the force (F) needed to extend or compress a spring by some distance (x) scales linearly with respect to that distance—that is, F s = kx, where k is a constant factor characteristic of the spring (i.e., its stiffness), and x is small compared to the total possible deformation of the spring.

9. Set screw - Wikipedia

   en.wikipedia.org/wiki/Set_screw

   In American English, a set screw is a screw that is used to secure an object, by pressure and/or friction, within or against another object, such as fixing a pulley or gear to a shaft. [ 1 ] [ 2 ] A set screw is normally used without a nut (which distinguishes it from a bolt ), being screwed instead in a threaded hole drilled in only one of the ...