Lecture

Kinetic Energy: Work and Forces

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

In course

PHYS-101(a): General physics : mechanics

Le but du cours de physique générale est de donner à l'étudiant les notions de base nécessaires à la compréhension des phénomènes physiques. L'objectif est atteint lorsque l'étudiant est capable de prévoir quantitativement les conséquences de ces phénomène ...

Description

This lecture covers the concept of kinetic energy, focusing on a scalar quantity that measures the effect of work on a material point. It discusses the kinetic energy of a material point under the influence of a constant force, emphasizing the relationship between work, forces, and energy. The lecture also explores the conservation of mechanical energy, the role of conservative and non-conservative forces, and the stability of equilibrium points in systems. Various examples, including collisions and circular motion, are used to illustrate these concepts.

Instructor

Jean-Philippe Hogge

Teaching & PhD PhD Students Constant Philippe Panisset, Pierrick Paul Louis Giroud-Garampon Past EPFL PhD Students Sudheer Kumar Jawla, Guillaume Michel Le Bars Past EPFL PhD Students as codirector Falk Braunmüller Courses Fusion and industrial plasma technologies PHYS-632 The course provides an overview of the technologies that are essential for fusion developments and for industrial plasmaapplications, highlighting the synergies between the two fields. The aim is to provide a combined th

Official source

Ontological neighbourhood

Physics

Mechanics: Classical mechanics

Related concepts (32)

Classical mechanics

Classical mechanics is a physical theory describing the motion of macroscopic objects, from projectiles to parts of machinery and astronomical objects, such as spacecraft, planets, stars, and galaxies. For objects governed by classical mechanics, if the present state is known, it is possible to predict how it will move in the future (determinism), and how it has moved in the past (reversibility). The "classical" in "classical mechanics" does not refer classical antiquity, as it might in, say, classical architecture.

Mechanics

Mechanics (from Ancient Greek: μηχανική, mēkhanikḗ, "of machines") is the area of mathematics and physics concerned with the relationships between force, matter, and motion among physical objects. Forces applied to objects result in displacements or changes of an object's position relative to its environment. Theoretical expositions of this branch of physics has its origins in Ancient Greece, for instance, in the writings of Aristotle and Archimedes (see History of classical mechanics and Timeline of classical mechanics).

Philosophy of physics

In philosophy, philosophy of physics deals with conceptual and interpretational issues in modern physics, many of which overlap with research done by certain kinds of theoretical physicists. Philosophy of physics can be broadly divided into three areas: interpretations of quantum mechanics: mainly concerning issues with how to formulate an adequate response to the measurement problem and understand what the theory says about reality.

Quantum mechanics

Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science. Classical physics, the collection of theories that existed before the advent of quantum mechanics, describes many aspects of nature at an ordinary (macroscopic) scale, but is not sufficient for describing them at small (atomic and subatomic) scales.

Conservative force

In physics, a conservative force is a force with the property that the total work done in moving a particle between two points is independent of the path taken. Equivalently, if a particle travels in a closed loop, the total work done (the sum of the force acting along the path multiplied by the displacement) by a conservative force is zero. A conservative force depends only on the position of the object.

Related lectures (64)

Conservation of Energy and Force Potential

Explores kinetic energy, work, force potential, and equilibrium stability in mechanics, emphasizing energy conservation and force impact on systems.

Work and Energy: Mechanics

Explores work in mechanics, kinetic and potential energy, conservative forces, and the conservation of mechanical energy.

Work and Energy

Explores work, kinetic energy, forces, and energy conservation in mechanical systems.

Conservation of Mechanical Energy

Explores the conservation of mechanical energy and its application in solving physics problems involving work, stability, and energy transformations.

Newton's Laws of Motion