From Citizendium, the Citizens' Compendium
- Engineering : The profession in which a knowledge of the mathematical and natural sciences gained by study, experience and practice is applied with judgment to develop ways to economically use the materials and forces of nature for the benefit of mankind.
- Physics : The study of forces and energies in space and time.
- Civil engineering : A broad field of engineering dealing with the design, construction, and maintenance of fixed structures, including roads, buildings, airports, tunnels, dams, bridges, and water supply and sewage systems.
- Classical mechanics : The science of mechanics, which is concerned with the set of physical laws governing and mathematically describing the motions of bodies and aggregates of bodies geometrically distributed within a certain boundary under the action of a system of forces.
- Mechanical engineering : The branch of engineering concerned with the utilisation of the basic laws of mathematics, thermodynamics, fluid dynamics, and system dynamics in order to create unique solutions to physical problems.
- Mechanics : In physics, all theories explaining the behaviour of matter.
- Acceleration : The increase of an objects velocity (or speed) per unit time.
- Acceleration due to gravity : The acceleration of a ponderable object, which is near the surface of the Earth, due to the Earth's gravitational force.
- Dyne : Force in cgs system; symbol: dyn; 1 dyn = 10−5 N.
- Friction (science) : The force that resists the relative lateral (tangential) motion of solid surfaces, fluid layers, or other materials in contact.
- Gravitation : The tendency of objects with mass to accelerate toward each other.
- Kilogram : The kilogram is the basic unit of mass in the International System of Units (SI, metric system).
- Kilogram-force : A unit of force which will accelerate 1 kilogram of mass to 9.80665 m/s2, the standard average acceleration due to gravity on Earth's surface (referred to as gn).
- Kip (unit) : Add brief definition or description
- Mass : The total amount of a substance, or alternatively, the total energy of a substance.
- Newton : SI derived unit of force, named after Isaac Newton, equal to the amount of force required to accelerate a mass of one kilogram at a rate of one metre per second per second.
- Noether's theorem : A theorem which states that any differentiable symmetry of the action of a physical system has a corresponding conservation law.
- Normal force : The perpendicular force with which two objects press against one another.
- Pound (mass) : A measurement unit of mass used in the United States customary, Imperial, and other systems of measurement.
- Poundal : Add brief definition or description
- Pound-force : A measurement unit of force which will accelerate 1 pound of mass to 9.80665 m/s2 (≈ 32.17405 ft/s2), the standard average acceleration due to gravity on Earth's surface (referred to as gn).
- Resultant (statics) : A single force having the same effect as a system of forces acting at different points.
- Sthene : Add brief definition or description