Gravitational Potential Energy A Level Physics

Gravitational potential energy gravitational potential energy gpe is energy stored in a mass due to its position in a gravitational field if a mass is lifted up it will gain gpe converted from other forms of energy if a mass falls it will lose gpe and be converted to other forms of energy. Gravitational potential the gravitational potential v jkg 1 at a point is the work done w per unit mass m to move a small object from a place far away from gravity fields.

A Level Physics Gravitational Potential Energy Gravitational Potential Gravitational Potential Energy A Level Physics

The potential gradient is steeper close to the planet.

Gravitational potential energy a level physics. The gravitational potential energy of an object near earth s surface is due to its position in the mass earth system. Thanks for watching lewis my physics websites find even more videos organised by exam board and topic at. The change in gravitational potential energy δpe g is δpe g mgh with h being the increase in height and g the acceleration due to gravity.

We are giving a detailed and clear sheet on all physics notes that are very useful to understand the basic physics concepts. It can also be defined as the energy required per unit mass to remove that mass from the gravity field i e. The gravitational potential energy g p e is the energy an object has when lifted off the ground given by the familiar equation.

Gravitational potential is the gravitational potential energy given to objects per unit mass. Key point the gravitational potential at a point in a gravitational field is the potential energy per unit mass placed at that point measured relative to infinity. So if the potential at any point in a field is known the potential energy of a mass placed at that point can be calculated by multiplying the potential by the mass.

The following image shows the gravitational field lines and equipotentials near a planet. This shows that the potential changes more rapidly for changes in height near the earth than for changes of height a long distance away from the earth. A level physics advancing physics gravitational potential.

G p e mgδh the g p e on the surface of the earth is taken to be 0. Potential gradient gravitational field strength g. In fact it can be shown that.

Place it far away. The equipotentials are shown in equal steps of 1 x 10 7 jkg 1 from the surface of the celestial body at g where the potential is 8 x 10 7 jkg 1 to a where the potential is 2 x 10 7 jkg 1 the diagram shows two important linked points. It is denoted by v g.

For short changes in distance δh δh r gravitational potential energy is given by. Gravitational potential at any point in gravitational field is equal to the work done per unit mass in bringing a very light body from infinity to that point. Gravitational potential definition physics.

So for short changes of distance gravitational potential is equal to gδh.

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