Question about Potential Energy.

In summary, the conversation discusses the concept of potential energy and its components, gravitational potential energy and elastic potential energy. The first question asks if the sum of all potential energy equates to these two types of potential energy, while the second question asks in which cases the two may be equal. The response states that potential energy can also have contributions from other forces, such as electric fields, and that the zero value of gravitational potential energy can be changed in order to make the numbers work for a specific problem.
  • #1
PrudensOptimus
641
0
Hello.


Does the sum of all potential energy yield gravitational potential energy and elastic potential energy?

If so, in what cases would gravitational potential energy = - elastic potential energy?

Please share insights.
 
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  • #2
I'm not sure what you mean in your first question, but you could do the second one easily by just changing the point at which you define your zero value of gravitational potential energy to be. Remember that potential energies really only express themselves as forces and so it is the derivative of the potential which matters, I can add a constant on to any potential in order to make the numbers work out nicely for a particular problem since the derivative of that constant will be zero and hence it won't show up in a force.
 
  • #3
No, the potential energy of a system may not always be only the gravitational energy and the elastic energy. The system may be under the influence of other forces like electric fields due to which it has other contributions to potential energy.



http://www.geocities.com/physics_all"
 
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1. What is potential energy?

Potential energy is the energy that an object possesses due to its position or state, and it has the potential to be converted into other forms of energy, such as kinetic energy.

2. How is potential energy different from kinetic energy?

Potential energy is the energy an object has due to its position or state, while kinetic energy is the energy an object has due to its motion. Potential energy can be converted into kinetic energy and vice versa.

3. What are the types of potential energy?

The two main types of potential energy are gravitational potential energy, which is the energy an object has due to its position in a gravitational field, and elastic potential energy, which is the energy stored in an object when it is stretched or compressed.

4. How is potential energy measured?

Potential energy is measured in joules (J) in the SI system of units. The specific formula for calculating potential energy depends on the type of potential energy being considered.

5. What affects the amount of potential energy an object has?

The amount of potential energy an object has is affected by its mass, height, and the strength of the force acting on it. The higher an object is positioned, the more potential energy it will have, and the heavier the object is, the more potential energy it will have.

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