-- change its mass
-- change its distance from the center of the Earth (raise it or lower it).
An object has potential engergy when it is any height above the ground. The object does not have to be moving to have engergy. This is like a stored energy. It takes energy to move or raise an object to a height level. This object now has stored that energy.
The gravitational potential energy does not change if the desk is horizontal. The work done is in overcoming the friction between the object and the desk.
The object's height and gravitational potential energy both increase.
Also double since potential energy is the energy stored in a body due it's position.
Put it on a higher shelf. Or a lower one.
Energy that is stored within an object.
An object has potential engergy when it is any height above the ground. The object does not have to be moving to have engergy. This is like a stored energy. It takes energy to move or raise an object to a height level. This object now has stored that energy.
Potential engergy is the engergy an object has based upon the height from the ground. Electric current also seeks an electrical ground. The symbols and equations are quite similar as I recall in my Physics.
A bathroom scale does that job very well.
Kinematics
It means that if an object is elevated to a higher position, it has more energy. It takes work to push the object up against Earth's gravitation; this work can be recovered when the object goes down again. While it is up, you can think of energy being saved in the object due to its position. More precisely, the energy is saved in the system Earth-object.
potential energy
Usually by allowing an object to fall.
The gravitational potential energy does not change if the desk is horizontal. The work done is in overcoming the friction between the object and the desk.
The object's height and gravitational potential energy both increase.
Also double since potential energy is the energy stored in a body due it's position.
I think it is the kinetic and potential energy but i am not sure