Solar System Formation Vocab

Front

In a planet's orbit, the point closest to the sun is ______.

Back

Perihelion

Front

_______ is a small body from which a planet originated in the early solar system.

Back

Planetesimals

Front

Inward force to keep an object in circular motion is ______.

Back

centripetal force

Front

Rotating cloud of gas and dust from which planets form.

Back

Solar nebula

Front

In a planet's orbit, the point farthest from the sun is...

Back

Aphelion

Front

Sun-centered model is called

Back

Heliocentric

Front

Force of attraction between objects due to mass.

Back

Gravity

Front

Path a body travels around another in space

Back

Orbit

Front

Describes something using Earth as a reference point.

Back

Geocentric

Front

First in solar system formation: sun or planets?

Back

sun