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Lesson 8: Gravity's Role in the Universe (Space Systems Exploration)

Terms in this set (8)

Balanced Force
Two or more forces that act on an object without causing a change in an objects motion.
Big Bang Theory
An explanation of the origin of the universe stating that it started small and expanded over billions of years.
Gravitational Instability
When the force of gravity is not consistent and matter collapses upon itself.
Gravity Assist
Using a planet's gravitational field and motion to change the speed and trajectory of a spacecraft.
Inertia
An object's tendency to resist change in motion.
Orbit
The curved path of one object, such as a planet or moon, around a central object, such as a star or planet; to move in a circular or elliptical path around a central object.
Orbital Period
The time it takes for an object, such as a planet, to make a complete revolution around a central object, such as a star.
Unbalanced Force
Two or more forces that act on an object, resulting in a change in speed or direction for the object.
THIS SET IS OFTEN IN FOLDERS WITH...