Difference between Potential energy at earth’s surface and height
Potential energy at earth’s surface
1) The energy stored in the object due to its position of rest is known as potential energy.
2) Substance gains the potential energy due to the gravitational force acts on it, given by formula,
∴ Potential energy, E = m × g × h
3) As we know that the magnitude of acceleration due to gravity is maximum on surface of earth, and then the potential energy due to gravitational force is also has maximum magnitude on the earth’s surface.
4) The height of object plays an important role in potential energy.
5) Eg. Potential energy of object of mass 100 kg, at rest on the surface of earth having height of 50 cm can be given as,
∴ Potential energy, E = m × g × h
∴ Potential energy, E = 100 × 0.5 × 9.8
∴ Potential energy, E = 490 J
6.) Potential energy of object on surface of earth < Potential energy of object at height above the earth’s surface.
Potential energy at height
1) The energy stored in the object due to its position of rest is known as potential energy.
2) Substance gains the potential energy due to the gravitational force acts on it, given by formula,
∴ Potential energy, E = m × g × h
3.) As we know that the magnitude of acceleration due to gravity is decreases as we go above the surface of earth, and then the potential energy due to gravitational force is also has minimum magnitude at higher altitudes above earth’s surface.
4) The height of object plays an important role in potential energy.
5) Potential energy of object of mass 100 kg, at rest on the surface of earth at a peak of mountain of height of 50 m can be given as,
∴ Potential energy,E = m×g×h
∴ Potential energy,E = 100×50×9.8
∴ Potential energy,E = 49000 J
6) Potential energy of object at height above the earth’s surface> Potential energy of object on surface of earth.