Gravity & Orbital Mechanics
Test your knowledge of gravity and orbital mechanics — the force and laws that keep planets, moons, and satellites moving the way they do.
Fourteen questions cover Newton's law of gravitation, Kepler's laws, escape velocity, and the mechanics of elliptical and geostationary orbits.
A solid way to check what you actually remember about why things stay in orbit instead of falling — or flying off into space.
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Sample questions3 of 14 shown
Q1
What is the primary force that keeps planets in orbit around the Sun?
Q2
Which of the following describes an orbit where an object moves faster when closer to the central body?
Q3
Which of the following statements about escape velocity are correct?
What This Quiz Covers
- Newton's law of universal gravitation
- Kepler's three laws of planetary motion
- Escape velocity
- Elliptical vs. circular vs. geostationary orbits
- Perihelion, aphelion, and orbital points
- The inverse square law
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