Question

Which event does NOT describe potential energy being changed into kinetic energy?

Answer 1

Potential energy means the energy means the energy stored in any object , and with any kind of appropriate support, the object always has a tendency to, convert  it's potential energy into kinetic energy. Conditions, where the object itself does not posses any potential energy, but due to external factors, it comes in motion, then the potential energy does not describe into kinetic energy.

An example of such case can be a fruit falling from a tree, not due to it's potential energy, but due to the gravitational force acting on it.

Answer 2

Answer:

There are many events where potential energy does not change into kinetic energy like:

1.  Compressing a spring.

2. A rubber foam is being compressed.

Explanation:

Potential energy is a position relative energy whereas, Kinetic energy is motion relative energy. Potential energy leads to the production of Kinetic energy. As kinetic energy require an object to store energy as potential energy to work. There are many events in which you can observe potential energy converting into kinetic energy. For example: Imagine there is a book on a table. When the book is at rest, it has potential energy. But when you accidentally knock it off the table, this potential energy will turn into kinetic energy while the book falls since it's in motion, it has kinetic energy. Just like this there are many events where potential energy does not change into kinetic energy. we can take one of the example described above in the answer. In a rubber foam that is compressed elastic potential energy is stored. But it is in the same form not released so, kinetic energy is not formed

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