what is gravitational potential energy?
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GPE is a term used when referring to the ability of an object to do work within a gravitational field. So increasing your distance from the centre of mass of an object increases your gravitational potential energy and vice versa. Energy is subject to debate within the scientific community as to what it actually is. Many people consider energy to just be some abstract idea which is used to determine limits of systems. We can of course apply energy conservation but energy is a difficult term to define. The GPE for a system is given by the intergral with respect to r of Newton's Gravitational force equation.\n\nTherefore, GPE = -G*M*m/r  where G is the gravitational constant, M and m are the two masses and r is the distance between the centres of the two objects.
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Electrical potential energy would be the equivalent of mechanical potential energy, which means the potential to do work.  For example if you lift a 100 Lb weight 10 feet you have done 1,000 foot-lbs of work and the weight now has 1,000 foot-lbs of potential energy that you added.  In a frictionless world, you should be able to get 1,000 foot-lbs of work back out of the weight (for example using pullies and ropes you may use the potential energy in your weight to lift a 10 lb weight 100 feet).\n\nElectrical potential energy would also represent the work that you can get out of an electrical device such as a battery.  Auto batteries are rated in amp-hours.  A battery with say a 50 amp-hour rating should be able to run a starter motor twice as long as a battery rated 25 amp-hours.\n\nElectrical potential energy should not be confused with electrical potential.  Electrical potential is the same thing as voltage.  Therefore a 12 Volt battery may be rated at any number of amp-hours, where heavy duty has the highest rating.
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The first answer is correct.  Energy.  Energy is defined as force applied through a distance.  This specific type of energy is known as kinetic energy (energy of motion).  Energy is measured in joules, or J.  E = F x D, so if you applied 50 Newtons and the object moved 1 metre, you would have expended 50 joules.
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an energy oscillation
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Negative energy can refer to several concepts:\n\n    * Negative rest energy, which corresponds to negative mass, which has many unusual physical consequences.\n    * Energy in any system below the conventionally-defined ground state. Examples are positrons under the dirac sea model of electron behavior, and the region of reduced vacuum energy associated with the Casimir effect. This type of effect typically occurs under exotic or unexpected conditions, as the definition of the ground state is usually chosen because it is the state of lowest expected energy within a system.\n    * Energy in any system below an arbitrarily defined zero level. Examples include electron potential energy within an atom under the Bohr model of atomic structure, and gravitational potential energy in Newton's model of gravity.
211921
Potential energy is the energy by virtue of its position.\nAny object which is far away from the center ofpossessingf nothing prevents it will move towards the center of earth. A spring wound fully  or partially. If left alone and it will rewind to its normal position.A  vessel containing gas under high pressure.If there is a vent the pressure will drop to normal.A string under tension. All thesrelievedamples of potential energy. These energies will be releived from the object when  there is proper way. \n\nKinetic energy is the energy by virtue of its motion. Any object moving in other words having velocity is possesing kinetic energy.If the velocity is reduced by some external agency the latter gets energy and viceversa.
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"Black Energy" or "Dark Energy" is energy that causes negative pressure throughout space.  It helps to keep the universe expanding, because it lessens gravity.\n\nFor more information, see my refrence.\n\nPEACE IS COMMING SOON!
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Definitions of potential energy on the Web:\n\n    * The energy stored in a raised object (eg the weights in a grandfather clock). Potential energy equals mgh, where m is mass, g is the acceleration of gravity, and h is the vertical distance from a reference location. It is called potential energy because the energy can be regained when the object is lowered. This type of potential energy is sometimes called gravitational potential energy in order to distinguish it from elastic potential energy: see elastic energy.\n      http://urban.arch.virginia.edu/~km6e/references/glossary/struc-glossary.html\n\n    * energy stored in an object due to its position\n      http://whyfiles.larc.nasa.gov/text/kids/Problem_Board/problems/pulleys/glossary.html\n\n    * The energy which a body possesses as a consequence of it's position in the field of gravity, the work required to bring the body up against gravity from a standard level.\n      http://cimss.ssec.wisc.edu/oakfield/keyterms.htm\n\n    * Energy related to the position or height above a place to which fluid could possibly flow.\n      http://www.flw.com/define_p.htm\n\n    * The energy that matter has because of its position or because of the arrangement of atoms or parts.\n      http://www.nmlites.org/standards/science/glossary_4.htm\n\n    * Potential energy is the energy possessed by an object because of its height above the ground. The amount of potential energy possessed by an object depends on its mass and its height. A roller coaster car is initially hauled by a motor and chain system to the top of a tall hill, giving it a large quantity of potential energy.\n      http://www.learner.org/exhibits/parkphysics/glossary.html
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The force of gravity preforms work by applying a force (weight) over a distance (the distance the object falls).  Energy is required to do work.  The energy required in order for gravity to do work on an object comes from the object's gravitational potential energy which it has inherently by virtue of being at some [non-infinite] distance away from another massive body.\n\nHow the object got to be at its given distance so as to obtain its gravitational potential energy is irrelevant as it only matters that it does have some potential energy which will be lost/converted as gravity does work.  The object could have been placed there by someone lifting it up against gravity, or the obiject could have always been seperated all the way back from the point of the formation of the universe, it does not matter.
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A. Potential energy = Force * Distance\n     = (50 * 9.8) * 10\n     = 4900 J\nB. Power rating = Energy / time = 4900 / 5 = 980 Watts
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There are four kind of energy: \n1. Gravity\n2. Electromagnetic\n3. Weak atomic Energies\n4. Strong atomic Energies
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Kinetic energy Ek\n\nlet's consider that an object with a mass m moves on a distance d = x1 - x2, with an acceleration a and its velocity changes from v1 to v1, under the action of a force F\n\naccording to Galileo's law:\nv2^2 - v1^2 = 2.a.d\n\nbut according to Newton's second law:\nF = m.a\n\n-> a = F/m \n-> v2^2 - v1^2 = 2.F.d/m\n-> m.v2^2 - m.v1^2 = 2.F.d\n-> m.v2^2/2 - m.v1^2/2 = F.d\n\nbut W = F.d = the work done while the force F moves the object on the distance d, it caracterizes a process\n\nBut energy is the capacity of an object of doing work, it caracterizes a state\n\nthe kinetic energy is due to the velocity of the object:\n\ndeltaEk = E2 - E1 = W = F.d \n-> E2 = m.v2^2/2\n-> E1 = m.v1^2/2\n\nPotential energy Ep\n\nLet's consider an object with a mass m is falling from a height h1 to h2. \n\nThe work done by gravity is:\n\nW = G.(h1-h2) = m.g.(h1-h2) = m.g.h1 - m.g.h2\n\nThe potential energy is depending on the position of the the object as compared to the Earth and its equal with the work done by gravity taken with opposite sign.\n\ndelta Ep = Ep2 - Ep1 = - W\n\n-> Ep2 = m.g.h2\n-> Ep1 = m.g.h1
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The potential energy stays the same.
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According to Newtonian gravity, gravitational force is -GMm/r^2.  Any mass experiences a gravitational force toward every other mass in the universe, proportional to the product of their masses, and inversely proportional to the square of their distance.  This means my body experiences a certain gravitational force from the sun, no matter what else is happening in the universe.  That says it would be impossible to shield me from the sun's gravity.\n\nTo find the net gravitational force on me, simply do a vector sum of all the gravitational forces on me from all other masses in the universe.  Simple to say, not so simple to do.\n\nThat sum is zero at the center of mass of the universe, wherever that is.  Unless the expansion of the universe is perfectly uniform, that point will shift with time.  I could find other points where the sum is zero.  I move away from that center of mass but toward a large nearby mass, just close enough that the pull of that nearby mass exactly balances the pull of the rest of the universe.  These will be single points, not regions.  At these points, I still can't say there's no gravitational force acting on me.  But I can say there are countless gravitational forces acting on me, but their sum is zero.\n\nLet's say I tell you I found such a zero-sum spot, about 1/3 of the way between our sun and Alpha Centauri, and I take you there.  How will you know I am telling you the truth?  The principle of equivalence says that there's no test you could make to tell whether the net gravitational force there is zero, or whether you are just accelerating according to the effect of the nonzero net force on your mass.\n\nThe relativistic warping of spacetime in the presence of gravitational mass is more a way of representing or measuring that force, rather than explaining it.  Neither Newton nor Einstein could tell us why gravity exists or how it works.  If spacetime is not warped in your region, it doesn't mean the gravitational field is zero, it means it is uniform.  And again, how would you tell whether spacetime is warped in your region?\n\nI've tried for decades to think of a gravity shield or a gravity insulator.  If I do find one, watch for my Nobel Prize in physics, and for me to quickly surpass Bill Gates on the wealth scale.
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Potential & Kinetic are the 2 types of energy. Potential energy is energy that is stored in an object. If you stretch a rubber band, you will give it potential energy. As the rubber band is released, potential energy is changed to motion. Kinetic energy is energy of motion. A rubber band flying through the air has kinetic energy. When you are walking or running your body is exhibiting kinetic energy. Potential energy is converted into kinetic energy.
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The energy of a satellite orbit is constant, energy defined as the sum of potential energy and kintetic energy (E = PE + KE).\n\nIn a circular orbit, both altitude and velocity are constant.  This means that the potential energy (PE) and the kintetic energy (KE) of the orbit are both constant, so there is no change in either potential energy or kinetic energy.\n\nIn an elliptical orbit, the satellite is constantly changing it's altitude, resulting in a transfer between KE and PE, even though total energy stays constant.  \n\nWork is defined as the difference between PE (or KE) at different points in the orbit.  Since the PE and KE are constantly changing, there is always work being done on a satellite in orbit.
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Gravitational Potential Energy = m*g*h joules\n        where   m - mass of the object in kg\n                     g - accelaration due to gravity in m/s^2\n                     h - height of the object from the reference in m\nHere the height from reference is 500m\ng is taken to be a constant and its value is 9.81m/s^2 though it may vary slightly with latitude, altitude and other such factors.\nMass is given as 0.400kg\nThus Potential energy = 0.400 * 9.81 * 500\n          Potential Energy = 1962 joules\n\nHope so u got wat u needed.