Search results
Results from the WOW.Com Content Network
A gravitational field is used to explain gravitational phenomena, such as the gravitational force field exerted on another massive body. It has dimension of acceleration (L/T 2 ) and it is measured in units of newtons per kilogram (N/kg) or, equivalently, in meters per second squared (m/s 2 ).
The gravitational field is the gravitational force per unit mass that would be exerted on a small mass at that point. It is a vector field, and points in the direction of the force that the mass would feel.
The gravitational field at any point is equal to the gravitational force on some test mass placed at that point divided by the mass of the test mass. The dimensions of the gravitational field are length over time squared, which is the same as acceleration.
A gravitational field is defined as: A region of space where a mass experiences a force due to the gravitational attraction of another mass. The direction of the gravitational field is always towards the centre of the mass. Gravitational forces cannot be repulsive.
In this section, we study the nature of the gravitational force for objects as small as ourselves and for systems as massive as entire galaxies. We show how the gravitational force affects objects on Earth and the motion of the Universe itself.
Therefore, a gravitational field is an area where objects with mass experience a non-contact force. There are two types of gravitational field: Uniform field - exerts the same gravitational force on a mass everywhere in the field. Radial field - the force exerted depends on the position of the object in the field.
gravity, in mechanics, the universal force of attraction acting between all bodies of matter. It is by far the weakest known force in nature and thus plays no role in determining the internal properties of everyday matter.
Gravity is described by a vector field. The direction of the gravitational field at any point in space is the direction of the net gravitational force on a "small" test mass. The gravitational field around a spherically symmetric mass is radial and points inward.
Learn about and revise gravity, weight, free body diagrams, resolving forces and work with GCSE Bitesize Physics.
In physics, gravity (from Latin gravitas 'weight' [1]) is a fundamental interaction primarily observed as mutual attraction between all things that have mass.Gravity is, by far, the weakest of the four fundamental interactions, approximately 10 38 times weaker than the strong interaction, 10 36 times weaker than the electromagnetic force and 10 29 times weaker than the weak interaction.