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Sun earth moon
| Question | Answer |
|---|---|
| Inertia | Tendency that keeps planets in motion |
| Law of universal gravitation | Force depends on mass and distance |
| Gravity | Force that attracts all objects towards each other |
| Equinox | Equal day and night earth isn’t tilted |
| Solstice | |
| Axis | |
| Rotation | |
| Revolution | |
| Orbit | |
| Weight | Force of gravity on an object |
| Ellipse | Oval shape of the planets orbits |
| Heliocentric | Sun centered motion |