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Physics 101: Lecture 12 Work and Energy
Physics 101: Lecture 12 Work and Energy

... is zero: Etot = KE + PE = constant ...
Chapter 6
Chapter 6

Lecture – 4 Torque and Levers The Mechanics of Rigid Bodies
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Gravity and Potential Energy

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Kinetic Energy

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Connected Particles and Newton`s 3rd Law

Physics 106P: Lecture 1 Notes
Physics 106P: Lecture 1 Notes

... Work is the transfer of energy through motion. In order for work to take place, a force must be exerted through a distance. The amount of work done depends on two things: the amount of force exerted and the distance over which the force is applied. There are two factors to keep in mind when deciding ...
Physics Oral Exam Questions: What are some elements of good
Physics Oral Exam Questions: What are some elements of good

... 10. Lightning, static cling, electric fields, and Van De Graaff Generators have one thing in common-static electricity. What is static electricity (also known as electrostatics)? Pick one of the previous examples and explain how static electricity is involved. a. Key terms: charge, negative, neutral ...
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Units of Energy Forms of Energy Goals for learning in

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4.1 The Concepts of Force and Mass

Work & Energy - FSU Physics Department
Work & Energy - FSU Physics Department

... If the ski lift takes you up a displacement h, the work done on you, by gravity, is –mgh. But when you ski downhill the work done by gravity is +mgh, independent of the path you take ...
ENERGY Energy Notes 2
ENERGY Energy Notes 2

... • An object gets kinetic energy from its mass and velocity. • An object with kinetic energy has energy stored in motion. • When the object slows down the energy is released into potential energy (if going up) or some other kind of energy (like heat [thermal energy] in the brakes of car). ...
Periodic Motion Experiment
Periodic Motion Experiment

Kinetic Energy and Work
Kinetic Energy and Work

... (the joule, symbol: J ). An object of mass m = 1kg that moves with speed v = 1 m/s has a kinetic energy K = 1J. Work: (symbol W) If a force F is applied to an object of mass m it can accelerate it and increase its speed v and kinetic energy K. Similarly F can decelerate m and decrease its kinetic en ...
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... 2. Identifying the force (indicate the object, the source and the type of each force), draw the free body diagram for a) a van parked on a hill b) a bucket hanging under a helicopter moving with constant velocity. (Make sure that the net force is consistent with the indicated motion.) 3. Consider a ...
The Gravitational Potential Energy will be at a maximum. The
The Gravitational Potential Energy will be at a maximum. The

... The Gravitational Potential Energy will be at a maximum. The acceleration will be at a maximum. The Gravitational Potential Energy will be zero Velocity will be at a maximum. Kinetic Energy will be at a maximum ...
Chapter 5 Work and Energy continued
Chapter 5 Work and Energy continued

... only be converted from one form to another. Heat energy is the kinetic or vibrational energy of molecules. The result of a non-conservative force is often to remove mechanical energy and transform it into heat. Examples of heat generation: sliding friction, muscle forces. ...
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mr10Tsol

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NewtonsLaws
NewtonsLaws

... An older incorrect theory of motion stated that an object's motion would continue only as long as there was a force applied to the object. Some science fiction movies would even show rockets traveling through space with their engines roaring to keep the rocket moving at a constant speed. How does th ...
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Energy
Energy

... Energy is neither created nor destroyed. Energy can only be transformed from one form to another. The total energy of the object remains constant if no external work is performed on the object. (no external work such as a push or pull or friction) Since no work is done on the object, there is no cha ...
Mechanics 105 chapter 4
Mechanics 105 chapter 4

... Most of the forces we experience are due to gravitational or electromagnetic Vector nature of forces – acceleration will be in same direction as net force Notation: F12 is the force exerted by object 1 on object 2 ...
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Relativistic mechanics

In physics, relativistic mechanics refers to mechanics compatible with special relativity (SR) and general relativity (GR). It provides a non-quantum mechanical description of a system of particles, or of a fluid, in cases where the velocities of moving objects are comparable to the speed of light c. As a result, classical mechanics is extended correctly to particles traveling at high velocities and energies, and provides a consistent inclusion of electromagnetism with the mechanics of particles. This was not possible in Galilean relativity, where it would be permitted for particles and light to travel at any speed, including faster than light. The foundations of relativistic mechanics are the postulates of special relativity and general relativity. The unification of SR with quantum mechanics is relativistic quantum mechanics, while attempts for that of GR is quantum gravity, an unsolved problem in physics.As with classical mechanics, the subject can be divided into ""kinematics""; the description of motion by specifying positions, velocities and accelerations, and ""dynamics""; a full description by considering energies, momenta, and angular momenta and their conservation laws, and forces acting on particles or exerted by particles. There is however a subtlety; what appears to be ""moving"" and what is ""at rest""—which is termed by ""statics"" in classical mechanics—depends on the relative motion of observers who measure in frames of reference.Although some definitions and concepts from classical mechanics do carry over to SR, such as force as the time derivative of momentum (Newton's second law), the work done by a particle as the line integral of force exerted on the particle along a path, and power as the time derivative of work done, there are a number of significant modifications to the remaining definitions and formulae. SR states that motion is relative and the laws of physics are the same for all experimenters irrespective of their inertial reference frames. In addition to modifying notions of space and time, SR forces one to reconsider the concepts of mass, momentum, and energy all of which are important constructs in Newtonian mechanics. SR shows that these concepts are all different aspects of the same physical quantity in much the same way that it shows space and time to be interrelated. Consequently, another modification is the concept of the center of mass of a system, which is straightforward to define in classical mechanics but much less obvious in relativity - see relativistic center of mass for details.The equations become more complicated in the more familiar three-dimensional vector calculus formalism, due to the nonlinearity in the Lorentz factor, which accurately accounts for relativistic velocity dependence and the speed limit of all particles and fields. However, they have a simpler and elegant form in four-dimensional spacetime, which includes flat Minkowski space (SR) and curved spacetime (GR), because three-dimensional vectors derived from space and scalars derived from time can be collected into four vectors, or four-dimensional tensors. However, the six component angular momentum tensor is sometimes called a bivector because in the 3D viewpoint it is two vectors (one of these, the conventional angular momentum, being an axial vector).
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