Gravitation field (13.1)

What is a gravitational field?

Gravitational field - a region of space in which an object with mass will experience a force

What is the equation relation gravitational field strength, force and mass and when is it applicable?

g = F/m

Where g is gravitational field strength (Nkg^-1)

Where F is force (N)

Where m is mass (kg)

This equation is applicable in both uniform and radial fields

g and F are both vectors

How can a gravitational field be represented by field lines?

The direction of field lines show the direction of the force on the mass

The density of the field lines represents the magnitude of the gravitational field strength

What do uniform and radial fields look like?

Figure 1(a) represents a uniform field

Figure 1(c) represents a radial field