Newton's Law

Test yourself

Newton's Law of Gravitation

Gravity is an attractive force acting between all matter. This force acts everywhere in the universe.

Illustrative background for Gravity Illustrative background for Gravity  ?? "content


  • Gravitational force only depends on the mass of the two objects and the distance between them. The equation for calculating this force is:
    • Gravitational force = (gravitational constant x first mass x second mass) ÷ (the distance between the masses)2
    • F=(Gm1m2)/r2F=(G{m_1}{m_2})/r^2
Illustrative background for Newton's third law Illustrative background for Newton's third law  ?? "content

Newton's third law

  • Gravitational force acts along the line joining the two centres of the objects.
  • The magnitude of the force acting on both objects is the same. This is consistent with Newton's third law.

Jump to other topics

1Measurements & Errors

2Particles & Radiation


4Mechanics & Materials


6Further Mechanics & Thermal Physics (A2 only)

7Fields & Their Consequences (A2 only)

8Nuclear Physics (A2 only)

9Option: Astrophysics (A2 only)

10Option: Medical Physics (A2 only)

11Option: Engineering Physics (A2 only)

12Option: Turning Points in Physics (A2 only)

Go student ad image

Unlock your full potential with GoStudent tutoring

  • Affordable 1:1 tutoring from the comfort of your home

  • Tutors are matched to your specific learning needs

  • 30+ school subjects covered

Book a free trial lesson