6.1 Gravitational Forces and Fields

6.1 Gravitational Forces and Fields

1. 6.1.1

   • Newton's universal law of gravitation
     • "Every single point mass attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of their separation"
       • This means that there is a gravitational force between all masses in the universe. This force is bigger if the bodies are heavier and if they are closer together than if they are small and far apart

2. 6.1.2

   • Gravitational field strength, g
     • a measure of how much force a body will experience in a gravitational field
       • g= F/m
       • Added vectorically