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Force between two objects that are in physical contact
A contact force is any force that occurs because of two objects making contact with each other. Contact forces are very common and are responsible for
Contact_force
Force which acts on an object without coming physically in contact with it
A non-contact force is a force which acts on an object without coming physically in contact with it. The most familiar non-contact force is gravity, which
Non-contact_force
Study of the deformation of solids that touch each other
modulus of elasticity of the material in contact. It gives the contact stress as a function of the normal contact force, the radii of curvature of both bodies
Contact_mechanics
Force exerted on an object by a body with which it is in contact, and vice versa
the normal force F N {\displaystyle F_{N}} is the component of a contact force that is perpendicular to the surface that an object contacts. In this instance
Normal_force
Term for accelerations felt as weight in multiples of standard gravity
The g-force or gravitational force equivalent is a mass-specific force (force per unit mass), expressed in units of standard gravity (symbol g or g0,
G-force
Force exerted by the ground on a body in contact with it
force (GRF) is the force exerted by the ground on a body in contact with it. For example, a person standing motionless on the ground exerts a contact
Ground_reaction_force
Type of very-high-resolution microscopy
however, is often not feasible. In non-contact atomic force microscopy mode, the tip of the cantilever does not contact the sample surface. The cantilever
Atomic_force_microscopy
Charge transfer due to contact or sliding
concept was a simplified form where contact between two metals led to a force to transfer electrons, what is called contact tension. This was extensively debated
Triboelectric_effect
Aspect of robotics
of a robot acts on an object or its environment. By controlling the contact force, damage to the machine as well as to the objects to be processed and
Force_control
Internal power in Chinese martial arts
the Li force, Neijin is said to be invisible. Both Li and Neijin need the "pivot point", but Neijin is intelligent enough to deliver contact force near
Neijin
Influence that can change motion of an object
mechanics include elastic, frictional, contact or "normal" forces, and gravitational. The rotational version of force is torque, which produces changes in
Force
Electrical circuit component
normally open contacts. The contacts are open when the energizing force (magnet or relay solenoid) is not present. When the energizing force is present,
Electrical_contact
Force acting throughout the volume of a body
with contact forces or surface forces which are exerted to the surface of an object. Fictitious forces such as the centrifugal force, Euler force, and
Body_force
Sport involving physical contact between players or their environment
great force. In contact sports (e.g. basketball), athletes routinely make contact with each other or with inanimate objects but usually with less force than
Contact_sport
Weight of an object when a force additional to gravity is present
the ground. The contact force acts only on the boundary of the object that is in contact with the ground. This ground reaction force is transferred into
Apparent_weight
beam such as an I-beam or a T-beam); for easy attachment/transfer of contact force with another object (as the flange on the end of a pipe, steam cylinder
Flange
Change in a moving object's trajectory due to a collision or force field
hence its trajectory, as a consequence of contact (collision) with a surface or the influence of a non-contact force field. Examples of the former include
Deflection_(physics)
Region of space in which a force acts
a force field is a vector field corresponding with a non-contact force acting on a particle at various positions in space. Specifically, a force field
Force_field_(physics)
Mechanical constraint which prevents penetration between two bodies
kind is based on smooth contact dynamics, including methods using Hertz's models, penalty methods, and some regularization force models, while the second
Unilateral_contact
between the actuation force and the contact force of a switch divided by the actuation force. The actuation force is the force required to collapse the
Silicone_rubber_keypad
Force resisting sliding motion
retarding force in friction, ranging from asperity deformation to the generation of charges and changes in local structure. When two bodies in contact move
Friction
High-rating electrical circuit switch
moving contact is propelled by the moving core; the force developed by the electromagnet holds the moving and fixed contacts together. When the contactor coil
Contactor
Interaction between subatomic particles
decay could be explained by a four-fermion interaction, involving a contact force with no range. In the mid-1950s, Chen-Ning Yang and Tsung-Dao Lee first
Weak_interaction
Frame-dependent apparent force in Physics
A fictitious force, also known as an inertial force or pseudo-force, is a force that appears to act on an object when its motion is described or experienced
Fictitious_force
Physical quantity of rough surfaces
Normal contact stiffness is a physical quantity related to the generalized force displacement behavior of rough surfaces in contact with a rigid body or
Normal_contact_stiffness
Type of motion which combines translation and rotation with respect to a surface
point of contact between the surface and rolling object that provides the required torque as long as the motion is pure rolling; this force is usually
Rolling
Force to transfer electrons between metals
Contact tension (also known as the contact electromotive force) is a force suggested by Alessandro Volta in 1800 to explain how electricity is generated
Contact_tension
contact area. Two spheres also have a circular contact area. It is an empirical fact for many materials that F = μN, where F is the frictional force for
Contact_area
Angle between a liquid–vapor interface and a solid surface
The contact angle (symbol θC) is the angle between a liquid surface and a solid surface where they meet. More specifically, it is the angle between the
Contact_angle
Type of microscopy using a physical probe
Non-contact atomic force microscopy (nc-AFM), also known as dynamic force microscopy (DFM), is a mode of atomic force microscopy, which itself is a type
Non-contact atomic force microscopy
Non-contact_atomic_force_microscopy
Force produced by a vehicle tire during cornering
contact patch generates a reaction force in the tire; the cornering force. Integrating the force generated by every tread element along the contact patch
Cornering_force
Paradox from inconsistencies in friction models
calculated friction force can have multiple values when the contact point has no tangential velocity, this is a simplified model of contact. It does, nevertheless
Painlevé_paradox
are types of surface force. All cohesive forces and contact forces between objects are considered as surface forces. Surface force can be decomposed into
Surface_force
Topics referred to by the same term
crystals Force field (physics), a vector field corresponding with a non-contact force acting on a particle at various positions in space Force field (technology)
Force_field
Topics referred to by the same term
Contact potential may refer to: Contact potential, a voltage generated; See Electromotive force Galvani potential, at a junction of two metals Volta potential
Contact_potential
Software program for contact information
A contact manager is a software program that enables users to easily store and find contact information, such as names, addresses and telephone numbers
Contact_manager
Relative motion of two surfaces in contact or separated by a thin film of fluid
noise pollution. Sliding friction (also called kinetic friction) is a contact force that resists the sliding motion of two objects or an object and a surface
Sliding_(motion)
Portion of a tire that is in contact with the road
The contact patch is the portion of a vehicle's tire that is in actual contact with the road surface. It is commonly used in the discussion of pneumatic
Contact_patch
Far East section of the SOE
near Pangkor Island. Their radio was unable to contact Force 136 HQ in Ceylon and the MPAJA contacts on Pangkor Island were betrayed to the Japanese
Force_136
Branch of physics which studies the behavior of materials modeled as continuous media
forces or contact forces, expressed as force per unit area, can act either on the bounding surface of the body, as a result of mechanical contact with other
Continuum_mechanics
Electric switch actuated by very little physical force
the closing force on the switch contacts from the operating force. Switch reliability is largely a question of the contact force: a force that is reliably
Miniature_snap-action_switch
Models and algorithms for simulating collision and reaction
support force exerted upon an object which is in contact with another stable object. Normal force is sometimes referred to as the pressing force since its
Collision_response
Type of electrical plug
the base. The elasticity of the converging pins provides sufficient contact force for the Europlug's current rating with a variety of socket-hole arrangements
Europlug
Electrical resistance attributed to contacting interfaces
Electrical contact resistance (ECR, or simply contact resistance) is resistance to the flow of electric current caused by incomplete contact of the surfaces
Contact_resistance
Study of the deformation of bodies in the presence of frictional effects
a surface depends on the frictional interaction at the contact interface. Here the total force versus indentation and lateral displacement are of main
Frictional_contact_mechanics
Deformation mechanism
Rolling contact fatigue (RCF) is a phenomenon that occurs in mechanical components relating to rolling/sliding contact, such as railways, gears, and bearings
Rolling_contact_fatigue
Branch of mechanics concerned with balance of forces in nonmoving systems
are classified as either contact or body forces. A contact force is produced by direct physical contact; an example is the force exerted on a body by a
Statics
Mechanical sensors, often based on human senses
strain-gauge based sensing is used at the end-effector location for contact force control. It is the part of the robot. Internal sensors measure the robot's
Robotic_sensors
American Medal of Honor recipient (1965–2002)
1965 – March 4, 2002) was a combat controller in the United States Air Force who was posthumously awarded the Medal of Honor on August 22, 2018, for
John_A._Chapman
Tendency of a liquid surface to shrink to reduce surface area
must cancel exactly at the contact point, known as equilibrium. The horizontal component of fla is canceled by the adhesive force, fA. f A = f l a sin θ
Surface_tension
Magnitude of the shear stress that a soil can sustain
the direction of the shear stress. The average normal intergranular contact force per unit area is called the effective stress. If water is not allowed
Shear_strength_(soil)
US Army tier one special operations force
Delta Force, Combat Applications Group (CAG), or within Joint Special Operations Command (JSOC) as Task Force Green, is a special operations force of the
Delta_Force
2013 video game
interactive open world and features a disguise mechanic, while the First Contact campaign centers around electronic warfare and allows the player to use
Arma_3
Representation of mechanical stress at every point within a deformed 3D object
normal vector n {\displaystyle \mathbf {n} } , the force distribution is equipollent to a contact force Δ F {\displaystyle \Delta \mathbf {F} } exerted at
Cauchy_stress_tensor
2015 film by J. J. Abrams
Star Wars: The Force Awakens, also known as Star Wars: Episode VII – The Force Awakens, is a 2015 American epic space opera film produced, co-written
Star_Wars:_The_Force_Awakens
Bearings with pressurized gas for low friction
wafers the chuck can be lifted stick-slip-free up to 3 mm. The needed contact force for the probe is adjustable and independent from stroke. The lift drive
Air_bearing
Measuring instrument for surface profile and roughness
pattern reflection methods. Contact and pseudo-contact methods include stylus profilometer (mechanical profilometer), atomic force microscopy, and scanning
Profilometer
left in contact (DLIC) is a portion of a military force left in contact position with the enemy as part of a maneuver. The rest of the force then maneuvers
Detachment_left_in_contact
Type of microscope
Electrostatic force microscopy (EFM) is a type of dynamic non-contact atomic force microscopy where the electrostatic force is probed. ("Dynamic" here
Electrostatic force microscope
Electrostatic_force_microscope
Criminal act of unlawful physical contact
simple battery, is the use of force against another, resulting in harmful or offensive contact, including sexual contact. At common law, simple battery
Battery_(crime)
Threshold of force
words static and friction) is the force that needs to be overcome to enable relative motion of stationary objects in contact. Any solid objects pressing against
Stiction
Scientific educational toy
velocity along 3 ^ {\displaystyle {\widehat {\mathbf {3} }}} . The contact force F {\textstyle \mathbf {F} } is M g z ^ {\textstyle Mg{\widehat {\mathbf
Euler's_Disk
Interactions between groups of atoms that do not arise from chemical bonds
force (sometimes van der Waals' force) is a distance-dependent interaction between atoms or molecules and one of the category of intermolecular force
Van_der_Waals_force
Upward force that opposes the weight of an object immersed in fluid
of the volume in contact with the fluid, that is the volume of the submerged part of the body, since the fluid does not exert force on the part of the
Buoyancy
Type of resistor, usually with three terminals
potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. In motion control systems, potentiometers
Potentiometer
Device that detonates bomb on contact with hard surface
that is released by centrifugal force of the spinning shell. These are mechanical locks that prevent the striker contacting the pellet. A third device is
Contact_fuze
U.S. Air Force general
abusive sexual contact against him were reported. After a General Court Martial found him guilty of abusive sexual contact, Air Force Secretary Frank
William_T._Cooley
Motion of multibody systems
instants at which a unilateral contact closes or a stick slip transition occurs. At these switching points, the set-valued force (and additional impact) laws
Contact_dynamics
Gear with teeth whose profile is an involute of a circle
need to be manufactured and kept in inventory. In involute gear design, contact between a pair of gear teeth occurs at a single instantaneous point (see
Involute_gear
measurement of variables such as peak anterior push-off force and vertical force at stride-foot contact. Force-plate data are often synchronized with motion capture
Biomechanics of baseball pitching
Biomechanics_of_baseball_pitching
Electrically operated switch
of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations
Relay
2025 video game
Delta Force, formerly Delta Force: Hawk Ops, is a free-to-play first-person tactical shooter video game developed by Team Jade and published by TiMi Studio
Delta_Force_(2025_video_game)
Rugby player
union player and now sports administrator. He played hooker for the Western Force in the Super Rugby competition, having previously played for the Melbourne
Nathan_Charles
pressed by the eyeball." The law is this: Intraocular pressure = Contact force/Area of contact The law assumes that the cornea is infinitely thin, perfectly
Imbert-Fick_law
Buoyancy principle in fluid dynamics
of the volume in contact with the fluid, that is the volume of the submerged part of the body, since the fluid doesn't exert force on the part of the
Archimedes'_principle
Offset in tire force application point
resultant force of side-slip occurs behind the geometric center of the contact patch. Pneumatic trail is caused by the progressive build-up of lateral force along
Pneumatic_trail
Force-sensing touch technology developed by Apple Inc.
alter the vibration at contact locations by providing a user experience other than just suppressing the propagated vibrations. Force Touch or Haptic Touch
Force_Touch
inter-particle contact not captured by force chains, in particular, the role of contact area over which inter-particle forces act. Force networks are an
Force_chain
m} is the mass of the ball and N ( t ) {\displaystyle N(t)} is the contact force of the table, and g {\displaystyle g} is the gravitational acceleration
Differential variational inequality
Differential_variational_inequality
Sharing an event that affects entities in a causal way
causal contact if there may be an event that has affected both in a causal way. Every object of mass in space, for instance, exerts a field force on all
Causal_contact
Topics referred to by the same term
source of energy with no current basis Force field (physics), a vector field that describes a non-contact force acting on a particle at various positions
Energy_field
2025 American crime drama television series
suburbs of Philadelphia, Pennsylvania, where an FBI agent heads a Task Force to put an end to a string of violent robberies of drug houses. The first
Task_(TV_series)
Starfire: First Contact is a 1993 supplement for Starfire published by Task Force Games. Starfire: First Contact is a supplement in which the two races
Starfire:_First_Contact
deformation and recovery as it enters and exits the contact area. If we measure the radial force between the tire and the wheel we will see zero change
Radial_force_variation
Force used to generate motion between a body and a tangential surface
microscopic shape (texture; macrotexture and microtexture) Normal force pressing contact surfaces together. Contaminants at the material boundary including
Traction_(mechanics)
Term or maneuver in vehicle dynamics
results in a force, the cornering force, which is in the plane of the contact patch and perpendicular to the intersection of the contact patch and the
Slip_angle
Part of a reciprocating engine
lubrication. Rings are also sprung to increase the contact force and to maintain a close seal. The spring force is provided by either the stiffness of the ring
Piston_ring
Series of GPUs by Nvidia
The GeForce RTX 50 series of consumer graphics cards is the successor of Nvidia's GeForce 40 series. Announced at CES 2025, it debuted with the release
GeForce_RTX_50_series
2009 American film
Direct Contact is a 2009 American action film written, produced and directed by Danny Lerner, and starring Dolph Lundgren, Michael Paré, Gina May and
Direct_Contact
Welding process in which joining occurs without melting or heating the interface
Cold welding or contact welding is a solid-state welding process in which joining takes place without fusion or heating at the interface of the two parts
Cold_welding
USMC deep reconnaissance unit
Force Reconnaissance (FORECON) are United States Marine Corps reconnaissance units that provide deep ground and amphibious reconnaissance, surveillance
United States Marine Corps Force Reconnaissance
United_States_Marine_Corps_Force_Reconnaissance
USAF aircraft carrying the US president
Center. They said, 'Air Force One you have traffic behind you and basically above you that is descending into you, we are not in contact with them—they have
Air_Force_One
1974 aircraft disappearance
penetration of the typhoon, they were preparing for a second when contact was lost, the last contact being at about 2200. There was no distress signal. Five aircraft
1974 United States Air Force WC-130 disappearance
1974_United_States_Air_Force_WC-130_disappearance
Concept in contact mechanics
described by a radial force pointing towards the center of the joint. In the case of a revolute joint or of a hinge joint, there is a contact between a male
Bearing_pressure
Rough material used to shape or finish objects by friction
the abrasive and how soon fresh grains, if present, are exposed Contact force: more force will cause faster abrasion Loading: worn abrasive and cast off
Abrasive
Topic in futurism
extraterrestrial contact is the corpus of changes to terrestrial science, technology, religion, politics, and ecosystems resulting from contact with an extraterrestrial
Potential cultural impact of extraterrestrial contact
Potential_cultural_impact_of_extraterrestrial_contact
Cartilage formation in the human knee
tibia and femur to decrease the contact area between the bones, and serves as a shock absorber reducing the peak contact force experienced. It also reduces
Medial_meniscus
non-planar surface. Due to the transient response of the contact force, the resultant frictional force is noisy. The induced stress is concisely described
Transient_friction_loading
Topics referred to by the same term
countries give to their armies Ground reaction force (GRF), the force exerted by the ground on a body in contact with it This disambiguation page lists articles
Ground_force
1997 film by Wolfgang Petersen
Air Force One is a 1997 American political action thriller film directed and co-produced by Wolfgang Petersen and written by Andrew W. Marlowe. Starring
Air_Force_One_(film)
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CONTACT FORCE
CONTACT FORCE
Girl/Female
Indian
Constant
Girl/Female
Irish
Constant.
Surname or Lastname
French and English
French and English : from a medieval personal name (Latin Constans, genitive Constantis, meaning ‘steadfast’, ‘faithful’, present participle of the verb constare ‘stand fast’, ‘be consistent’). This was borne by an 8th-century Irish martyr. This surname has also absorbed some cases of surnames based on Constantius, a derivative of Constans, borne by a 2nd-century martyr, bishop of Perugia. Compare Constantine.English : perhaps also a nickname from Old French constant ‘steadfast’, ‘faithful’.
Boy/Male
Tamil
Constant
Boy/Male
Tamil
Nityagopal | நிதà¯à®¯à®•à¯‹à®ªà®¾à®²Â
Constant
Nityagopal | நிதà¯à®¯à®•à¯‹à®ªà®¾à®²Â
Boy/Male
English Latin
Steady; stable.
Surname or Lastname
English
English : from an Old Breton personal name, derived from an element meaning ‘high’, ‘mighty’, which was introduced into England by followers of William the Conqueror and subsequently into Ireland, where it still has some currency as a personal name.Scottish : habitational name from a place in Kincardineshire. The place name is of uncertain origin, possibly from an early Celtic name, Conona ‘hound stream’.Roger Conant led a secession from Plymouth colony in about 1627 and founded the settlement that became Salem, MA. He was probably the son of Christopher Connant, who came over from England aboard the Anne in 1623.
Boy/Male
Celtic Irish
Wise.
Boy/Male
Australian, Celtic, Irish
Wise; Hound; Wolf; High
Boy/Male
Irish
Brave or wise.
Boy/Male
Indian
Constant
Girl/Female
Irish
Constant.
Boy/Male
Tamil
Content
Boy/Male
Australian, Irish
Brave; Wise
Girl/Female
Spanish Italian
Constant.
Surname or Lastname
Irish (Connacht)
Irish (Connacht) : reduced Anglicized form of Gaelic Ó LáimhÃn, a reduced form of Ó FlaithimhÃn ‘descendant of FlaithimhÃn’, a personal name from a diminutive of flaith ‘prince’, ‘ruler’. This name is sometimes translated Hand, from the similarity of the reduced form to lámh ‘hand’.English : from the medieval female personal name Lavin(a) (from Latin Lavinia, of unknown origin)Spanish (LavÃn) : habitational name from Lavin, a place so named in the Santander province.Respelling of French Lavigne.
Girl/Female
Tamil
Content
Boy/Male
Australian, British, English, French, Russian
Eye Contact; Clean Sight
Girl/Female
Arabic
Sensible Contact
Girl/Female
Tamil
Constant
CONTACT FORCE
CONTACT FORCE
CONTACT FORCE
CONTACT FORCE
CONTACT FORCE
CONTACT FORCE
CONTACT FORCE
n.
The property of two curves, or surfaces, which meet, and at the point of meeting have a common direction.
v. t.
To conduct safely; to give safe-conduct to.
v. t.
To unite or connect firmly, as in a system.
v. i.
To join, unite, or cohere; to have a close relation; as, one line of railroad connects with another; one argument connect with another.
n.
Contact or impression by touch; collision; forcible contact; force communicated.
v. i.
To be drawn together so as to be diminished in size or extent; to shrink; to be reduced in compass or in duration; as, iron contracts in cooling; a rope contracts when wet.
n.
An expression of assent to a bill or motion; an affirmative vote; also, a member who votes "Content.".
v. t.
To prepare from crude materials, as food; to invent or prepare by combining different ingredients; as, to concoct a new dish or beverage.
n.
An agreement between parties; a covenant or contract.
n.
One who keeps a constant watch of the conduct of others.
p. p. & a
Brief; close; pithy; not diffuse; not verbose; as, a compact discourse.
n.
To lead, as a commander; to direct; to manage; to carry on; as, to conduct the affairs of a kingdom.
a.
Contracted; as, a contract verb.
n.
To draw together or nearer; to reduce to a less compass; to shorten, narrow, or lessen; as, to contract one's sphere of action.
n.
The agreement of two or more persons, upon a sufficient consideration or cause, to do, or to abstain from doing, some act; an agreement in which a party undertakes to do, or not to do, a particular thing; a formal bargain; a compact; an interchange of legal rights.
n.
To bring on; to incur; to acquire; as, to contract a habit; to contract a debt; to contract a disease.
n.
A close union or junction of bodies; a touching or meeting.
n.
The plane between two adjacent bodies of dissimilar rock.
v. i.
To make an agreement; to covenant; to agree; to bargain; as, to contract for carrying the mail.
v. i.
To conduct one's self; to behave.
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