Physics definition7/5/2023 These examples are programmatically compiled from various online sources to illustrate current usage of the word 'physics.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Todd Spangler, Detroit Free Press, 6 Mar. Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. 2023 Barbara Everitt attended Cornell University, getting a bachelor's degree in physics and intending to become a science writer. Physics is the natural science of matter, involving the study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. In order to specify a direction, there must be something to which the direction is relative. Each of these quantities has both a magnitude (how far or how fast) and a direction. 2023 Following publication in 1962 of Thomas Kuhn's seminal Structure of Scientific Revolutions, science historians heatedly disputed the question of whether Einstein had shown Newtonian physics to be wrong, as Kuhn argued, or merely incomplete. Physical concepts such as displacement, velocity, and acceleration are all examples of quantities that can be represented by vectors. Jeffrey Tomik, Washington Post, 29 Mar. Air Force has a detailed explanation and visuals about the physics of flying at Mach 5, or five times the speed of sound. 2023 For better understanding of hypersonic weapons, the U.S. physics, science that deals with the structure of matter and the interactions between the fundamental constituents of the observable universe. 2023 His research in the field of theoretical physics has spanned decades and covered topics such as black holes, the velocity of light, dimensionality of space and relativity and quantum mechanics. 2023 However, considering various Barbies' many accomplishments, winning a Nobel Prize in physics is well within the scope of her capabilities. Kevin Hartnett, Quanta Magazine, 18 Apr. 2023 Similar reexamination has taken place in condensed matter physics. Manon Bischoff, Scientific American, 24 Apr. Explore the definition, origins, branches, fundamentals, and the many topics of physicists study. A force is said to do positive work if when applied it has a component in. 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. Jackie Appel, Popular Mechanics, This is because of an idea in quantum physics called Heisenberg's uncertainty principle. noun (functioning as singular) the branch of science concerned with the properties of matter and energy and the relationships between them. Physics is the study of how matter and energy act on their own and with each other. In physics, work is the energy transferred to or from an object via the application of force along a displacement. Recent Examples on the Web According to the laws of quantum physics, information cannot be destroyed.
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