Potential energy equations calculator science physics formulas. 014 kg 037 kg 119 kg 2182 kg. Carrying half the weight and climbing twice as high. Energy density is the amount of energy stored in a given system or region of space per unit volumecolloquially it may also be used for energy per unit mass though the accurate term for this is specific energyoften only the useful or extractable energy is measured which is to say that inaccessible energy such as rest mass energy is ignored. Energy is the ability to do work or cause. Weight of liquid or gas.
Potential energy e 0 0. Potential energy mass x gravity x height. The potential energy formula for the earths gravitational field is mgh where m is mass and h is height above the ground. Energy related to the height of an object is gravitational potential energy. Potential energy e mass m acceleration of gravity g conversions. A ball has 11662 j of gravitational potential energy at a height of 85 m.
The gravitational potential energy of an object is the stored energy that the object has by being at that height. What is the mass of the ball. You have to do work against a force field to store potential energy and the calculation of the amount of work you have to do and the energy you can store depends of the field. Egrav pe mgh. Energy related to the height of an object is gravitational potential energy. A what is the gravitational potential energy relative to the generators of a lake of volume 500 km 3 mass 500 10 13 kg given that the lake has an average height of 400 m above the generators.
Volume of liquid at normal boiling point. In cosmological and other general relativistic. The gravitational potential energy of an object is equal to its weight multiplied by its. Kristina demonstrates a toy for her younger brother. A change in an objects speed has an effect on its kinetic energy than a change in its mass. Volume of gas at 70f 21c and 1 atm.
B compare this with the energy stored in a 9 megaton fusion bomb. The steps to operate the toy are listed below. Energy and work are measured in. For small height changes gravitational potential energy can be computed using where m is the mass in kg g is the local gravitational field 98 metres per second squared on earth h is the height above a reference level in metres and u is the energy in joules. This is equivalent to its mass times the force of gravity g a defined constant of 98 ms 2 times the height of the object.