AQA Physics A2 Unit 4 Module 4.1

4.1 Gravitational field strength

• Gravitational field - the force field round a mass

•  Field line - a line followed by a small mass in a gravitational field acted upon by no other forces than the force due to the field

• The strength of a gravitational field

g = F/m

where F is force (N), m is mass (kg) and g is the strength of the gravitational field (Nkg-1)

• Free…