IB Physics SL D.1.2 Universal Gravitation

Practise calculating the mutual gravitational force between masses, choosing centre-to-centre separation and applying inverse-square scaling or superposition in multi-body systems.

Syllabus
First assessment 2025
Objective
—
Level
SL

Exam points

  • calculate F = Gm₁m₂/r² using both masses and centre-to-centre separation in metres
  • draw equal and opposite attractive forces along the line joining the two mass centres
  • compare forces after mass or distance changes using direct mass and inverse-square distance scaling

D.1.2—Universal gravitation question 1

[Maximum number: 3]

State Newton's universal law of gravitation.

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