Question

Describe the transformation from potential energy to kinetic energy.

Answer 1

Answer:

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Explanation:

You can transfer energy to an object by doing work on that object. ... When you drop a book, gravitational potential energy is transformed into kinetic energy. Your car transforms the chemical potential energy stored in gasoline into the kinetic energy of the car's motion.

Answer 2

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Potential energy

Potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

Kinetic energy

Kinetic Energy is the energy possessed by the body by virtue of its motion.

Transformation of potential energy to kinetic energy.

When an object falls, its gravitational potential energy is changed to kinetic energy. You can use this relationship to calculate the speed of the object’s descent. Gravitational potential energy for a mass m at height h near the surface of the Earth is mgh more than the potential energy would be at height 0.

Examples of transformation from potential energy to kinetic energy.

1. A stone at a height has the gravitational potential energy which is equal to the work done in moving the stone to that height against the force due to gravity on it. When the stone is made to fall on a nail standing on a wooden piece, the nail begins to penetrate. The reason is that as the stone starts falling, its potentialenergy begins to change into its kinetic energy. The falling stone now has both potential and kinetic energy. When it strikes the nail, stone does work on the nail. The kinetic energy of the stone changes into the kinetic energy of the nail due to which the nail moves into the wooden piece.

(2) A wound up watch spring has the elastic potential energy which is equal to the work done in bringing it to the wound-up state. As the spring unwinds itself, the potential energy stored in it changes into the kinetic energy which does work moving the hands of the watch and thus changes into the kinetic energy of the hands.

(3) When the string of a bow is pulled, some work is done which is stored in the deformed state of the bow in the form of its elastic potential energy. On releasing the string to shoot an arrow, the potential energy of the bow changes into the kinetic energy of the arrow which makes it move.

(4) A compressed spring has the elastic potential energy due to its compressed state. When it is released, the potential energy of the spring changes into the kinetic energy which does work on the ball placed on it and changes into the kinetic energy of the ball due to which it flies away