Energy - Gravity, Electromagntic , from where ?

In summary, the conversation discusses the concept of energy and its relation to gravity and electromagnetism. There is a question about where this seemingly infinite energy comes from, and whether it comes from within matter or from external sources. The expert summarizes that energy is the capacity to do work and there must be a change in energy for work to be done. The conversation also touches on the potential for change in quantum mechanics, but the expert advises understanding basic classical mechanics first.
  • #1
JPC
206
1
hey

just wondering

as it seems , the gravity force of an untouched object remains for ever, same as its electromagnetic force

but where does this energy that seems to last for ever come from ?

is it that matter has so much energy stocked inside it that , the its force energy is decreasing very very very slowly with time

or does it get back some energy from the exterior ?
 
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  • #2
You need to learn the definition of energy. Energy is the capacity to do work. If there is no change in energy, there is no energy expended and no work done.
 
  • #3
russ_watters said:
You need to learn the definition of energy. Energy is the capacity to do work. If there is no change in energy, there is no energy expended and no work done.

Would the definition of "the potential for change" fit that definition in terms of quantum mechanics?
 
  • #4
yeah but it doesn't seem logical to be able to attract other objects just like that for ever

PS : ok , maybe its in quantum mechanics i should put it, but where's the redirect button ?
 
  • #5
No, it isn't. Before you can tackle "quantum mechanics", you need to understand basic classical mechanics first. It appears from your misunderstanding of what Russ has posted that you haven't done that yet.

Zz.
 

1. What is gravity and how does it work?

Gravity is a fundamental force of nature that causes objects with mass to attract each other. It is what keeps us grounded on the Earth and governs the movement of planets and galaxies. According to Einstein's theory of general relativity, gravity is caused by the curvature of space and time by massive objects.

2. Where does gravity come from?

Gravity is a property of matter, meaning that all objects with mass have gravity. The larger the mass of an object, the stronger its gravitational pull. This means that the Earth, with its large mass, has a stronger gravitational pull than smaller objects like a basketball or a feather.

3. What is electromagnetic energy?

Electromagnetic energy is a form of energy that is created by the movement of electrically charged particles. It encompasses a wide range of frequencies, including visible light, radio waves, and X-rays. It is responsible for many everyday phenomena such as light, heat, and electricity.

4. Where does electromagnetic energy come from?

Electromagnetic energy can come from a variety of sources, including the sun, electric currents, and radioactive substances. It is also created in many man-made devices, such as light bulbs, cell phones, and computers.

5. How do gravity and electromagnetic energy interact?

Gravity and electromagnetic energy are both fundamental forces of nature, but they do not directly interact with each other. However, the effects of gravity can be observed on electromagnetic energy, such as the bending of light around massive objects due to gravity. Additionally, electromagnetic energy can be used to manipulate and control gravitational forces, such as in the case of electromagnets.

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