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# Recursos > energy and momentum

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Hipervinculo Física

## Work - Energy Theorem

"According to the work-energy theorem, the net work on an object causes a change in the kinetic energy of the object. The formula for net work is net work = change in kinetic energy = final kinetic en ...

Video Física

## Kinetic Energy

"The energy of an object in motion is called kinetic energy. Kinetic energy is defined as the energy needed for an object to accelerate from a resting position to its current velocity.  To calculuate ...

Video Física

## Impulse

"Impulse measures the change in the momentum of an object. Impulse is expressed as the integral of force over time and its unit is the Newton-second (N x s). Expressed without Calculus, impulse = forc ...

Video Física

## Energy

"Energy is best defined as the properties of an object that enables it to do work. Energy is a scalar measurement and is usually measured in Joules. According to the law of conservation of energy, ene ...

Video Física

## Power

"Power is the rate at which work is done. It is related to energy, which is the quantity used to measure work. Power can be calculated by the ratio power = work / time and is usually measured in Watts ...

Video Física

## Potential Energy

"Objects store energy in the form of potential energy. Chemical potential energy is an object's potential to undergo an exothermic reaction; spring potential energy is a compressed spring's potential ...

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## Momentum

"Momentum is a vector quantity used to quantify an object's motion in which the direction of the vector is the same as the direction of the object and the magnitude is equal to the mass times the velo ...

Video Física

## Mechanical Energy

"An object's ability to do work is measured by its mechanical energy, or the sum the object's kinetic energy and potential energy. Mechanical energy is due to the position or movement of an object. Th ...

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