physics / Classical Mechanics / free
Gravitation
See how mass shapes attraction from falling objects to planetary orbits.
an inverse-square attractionF = G m₁m₂ / r²
The stage uses scaled units so the force law and orbit geometry fit on one screen. Real orbits also depend on angular momentum and can be elliptical.
source mass65%
separation55%
orbit speed3.5 u
The same gravitational interaction can make an apple fall or keep a satellite in orbit. An orbit is continuous free fall with enough sideways velocity.
04 / PRACTICE
0 / 3 checkedMake the idea yours.
Use the model, then answer without looking back. Each check isolates one decision a learner should be able to make after this lesson.
CHECK 1 / 3