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The Work–Energy Theorem. In physics, the term work has a very specific definition. Work is application of force, f f, to move an object over a distance, d, in the direction that the force is applied. Work, W, is described by the equation. W = fd. W = f d.
- 15.1 The Electromagnetic Spectrum
Teacher Support [BL] Explain that the term spectrum refers...
- 22.4 Nuclear Fission and Fusion
Given that it requires great energy separate two nucleons,...
- 23.1 The Four Fundamental Forces
The more energy input or ΔE, the more matter m can be...
- 11.1 Temperature and Thermal Energy
9 Work, Energy, and Simple Machines. Introduction; 9.1 Work,...
- 22.1 The Structure of The Atom
The energy required to change the orbital state of the...
- 23.3 The Unification of Forces
As discussed earlier, the short ranges and large masses of...
- 21.3 The Dual Nature of Light
Figure 21.10 shows a comet with two prominent tails. Comet...
- 15.1 The Electromagnetic Spectrum
The principle of work and kinetic energy (also known as the work-energy theorem) states that the work done by the sum of all forces acting on a particle equals the change in the kinetic energy of the particle.
The work–energy principle states that an increase in the kinetic energy of a rigid body is caused by an equal amount of positive work done on the body by the resultant force acting on that body. Conversely, a decrease in kinetic energy is caused by an equal amount of negative work done by the resultant force.
Explain work as a transfer of energy and net work as the work done by the net force. Explain and apply the work-energy theorem.
Use the work-energy theorem to find information about the forces acting on a particle, given information about its motion. We have discussed how to find the work done on a particle by the forces that act on it, but how is that work manifested in the motion of the particle?
Explain work as a transfer of energy and net work as the work done by the net force. Explain and apply the work-energy theorem. Work Transfers Energy. What happens to the work done on a system? Energy is transferred into the system, but in what form? Does it remain in the system or move on? The answers depend on the situation.
Work-Energy Theorem argues the net work done on a particle equals the change in the particle’s kinetic energy. According to this theorem, when an object slows down, its final kinetic energy is …
