Topic_12_Gravitation_fields_

F

F

________ is the force exerted on the object.

G

________ is the gravitational constant.

M1 m2

________ are the masses of the objects.

M

Where ________ is the mass of the object creating the gravitational field.

spherical body

A point or ________ will produce a radial field.

Gravitational Fields

Comparing Electric and ________ The table below describes some of the similarities and differences between electric and ________:

M

________ is the mass of the object causing the gravitational field.

Gravitational forces

________ are weaker.

Gravitational field strength

G is the ________.

Orbital Motion

________: Keplers third law is that the square of the orbital period (T) is directly proportional to the cube of the radius (r): This can be derived through the following process: T2 ∝ r3.

gravitational field strength

G is the ________.

G

________ is the gravitaional constant.

Topic 12

Gravitation fields

A force field

_________ is an area in which an object experiences a non-contact force

uniform

There are two types of gravitational field; a ______ field or radial field

Gravitational Field Strength in a Radial Field

An example of a radial gravitational field, is the one formed by a point mass

Gravitational potential (V)

___________ at a point is the work done per unit mass when moving an object from infinity to that point