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2. Power (physics) - Wikipedia

   en.wikipedia.org/wiki/Power_(physics)

   t. e. Power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. Power is a scalar quantity. Specifying power in particular systems may require attention to other quantities; for example, the power involved in moving a ground vehicle ...

3. Glossary of physics - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_physics

   This glossary of physics is a list of definitions of terms and concepts relevant to physics, its sub-disciplines, and related fields, including mechanics, materials science, nuclear physics, particle physics, and thermodynamics. For more inclusive glossaries concerning related fields of science and technology, see Glossary of chemistry terms ...

4. Scientific theory - Wikipedia

   en.wikipedia.org/wiki/Scientific_theory

   A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world. The theory of biological evolution is more than "just a theory".

5. List of physical constants - Wikipedia

   en.wikipedia.org/wiki/List_of_physical_constants

   The constants listed here are known values of physical constants expressed in SI units; that is, physical quantities that are generally believed to be universal in nature and thus are independent of the unit system in which they are measured.

6. Physics - Wikipedia

   en.wikipedia.org/wiki/Physics

   Physics is the scientific study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. [1] Physics is one of the most fundamental scientific disciplines. [2][3][4] A scientist who specializes in the field of physics is called a physicist.

7. Branches of physics - Wikipedia

   en.wikipedia.org/wiki/Branches_of_physics

   atmospheric physics is the application of physics to the study of the atmosphere; space physics is the study of plasmas as they occur naturally in the Earth's upper atmosphere (aeronomy) and within the Solar System; biophysics, studying the physical interactions of biological processes; chemical physics, the science of physical relations in ...

8. Work (physics) - Wikipedia

   en.wikipedia.org/wiki/Work_(physics)

   In science, work is the energy transferred to or from an object via the application of force along a displacement. In its simplest form, for a constant force aligned with the direction of motion, the work equals the product of the force strength and the distance traveled. A force is said to do positive work if it has a component in the ...

9. Couple (mechanics) - Wikipedia

   en.wikipedia.org/wiki/Couple_(mechanics)

   Classical mechanics. In physics, a couple is a system of forces with a resultant (a.k.a. net or sum) moment of force but no resultant force. [1] A more descriptive term is force couple or pure moment. Its effect is to impart angular momentum but no linear momentum. In rigid body dynamics, force couples are free vectors, meaning their effects on ...