Astronomy Vocabulary

The path that an object follows as it moves around another object.

• rotation

• orbit

• axis

• barycenter

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Planets do not follow a perfectly circular orbit - instead their path is an elongated circle or oval called:

• ellipse

• barycenter

• nutation

• precession

Tags

NGSS.MS-ESS1-2

The model of the universe that shows Earth at the center with all other planets and stars revolving around it.

• heliocentric

• barycentric

• geocentric

• biocentric

The points inside an ellipse that will determine the shape of a planet's orbit.

• focus

• barycenter

• nutation

• epicenter

If not for ____, Earth would not be able to stay in motion on its path around the Sun.

• gravity

• inertia

• eccentricity

• rotation

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

If there were no ___, Earth would move away from the Sun farther into outer space.

• inertia

• gravity

• nutation

• precession

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

As two objects move closer together, their gravitational force ___.

• increases

• decreases

• stays the same

Tags

NGSS.MS-PS2-2

This is the reason that Earths experiences day and night in a 24 hour period.

• precession

• nutation

• revolution

• rotation

Tags

NGSS.MS-ESS1-1

This is the reason that Earth experiences seasons.

• Distance from the sun

• Rotation

• Axis Tilt

• precession

Tags

NGSS.MS-ESS1-1

The moon travels in its orbit around the Earth approximately every 29 days. This is an example of ___.

• Rotation

• Revolution

• Precession

• Eccentricity

Tags

NGSS.MS-ESS1-1