Gracitational Potential Energy
By raising it, bringing it against the force of gravity.
You have to use energy to raise a mass against the gravitational force, the object then has potential energy. If it is then let fall, this potential is released.
The answer is gravity. A+: Gravity
traction
When the only force on an object is the force of gravity,we say that the object is in "free fall".
By raising it, bringing it against the force of gravity.
You have to use energy to raise a mass against the gravitational force, the object then has potential energy. If it is then let fall, this potential is released.
The answer is gravity. A+: Gravity
When pushing something up against the force of gravity, you are making an "energy investment", so to speak. (You require energy to push the object up; this energy can be recovered when the object falls back down.)
traction
In this case, you are not doing work against the force of gravity, but against the force of friction.
When the only force on an object is the force of gravity,we say that the object is in "free fall".
The acceleration due to gravity (9.8 meters/sec.^2) * mass of object.
gravity
Gravitational Potential Energy.
When an object is moved up, against the force of gravity, its potential energy increases. Since it requires some force to move it up, some other form of energy is converted into potential energy. When the object moves down (for example, when it falls down), this potential energy is again converted into some other type of energy. For more information, do some reading on the topic of "potential energy".
When the only force on an object is the force of gravity,we say that the object is in "free fall".