Elustrate the law of conservation of …

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Elustrate the law of conservation of energy by discussing the free fall of a body

Posted by Arpita Swain 1 year, 8 months ago

CBSE > Class 09 > Science

4 answers

Preeti Dabral 1 year, 8 months ago

Potential energy + kinetic energy = constant

Energy can neither be created nor destroyed, but it is transformed from one form to another.
Alternatively, whenever energy gets transformed, the total energy remains unchanged.
When an object at its highest position from the ground it has the maximum amount of potential energy.
When the object starts falling there is an increase in the kinetic energy and a decrease in potential energy as the speed increases the kinetic energy also increases but the sum of the potential and the kinetic energy remains constant when it is just above the ground the kinetic energy is maximum and the potential energy is minimum.
This relation between the potential and kinetic energy is expressed as,
Potential energy + kinetic energy=constant

0Thank You

Smriti Gupta 1 year, 7 months ago

Energy can neither be created nor destroyed, but it is transformed from one form to another. If you throw a ball so at the maxium height the potential energy is maximum & the kinetic energy is zero while the ball falls back & it strikes the ground so the potential energy is zero & the kinetic energy is maximum .

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Vaibhav Verma 1 year, 8 months ago

Is proper proving required or not?

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Saumya Gaur 1 year, 8 months ago

1Thank You

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CBSE > Class 09 > Science