Historical Models of the Solar System L1

The sun and planets circle Earth.

• true

• false

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Most early astronomers placed the sun at the center of the solar system.

• true

• false

The planets orbit the sun in ellipses.

• true

• false

The telescope helped to improve our understanding of the solar system.

• true

• false

The _ model of the solar system was first proposed by Aristarchus.

• geocentric

• heliocentric

The _ is the sun and all of the bodies that orbit the sun.

• universe

• solar system

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

In the _ model, Earth and other planets orbit the sun.

• geocentric

• heliocentric

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Models which used Earth as the center are called Earth-centered, or _.

• geocentric

• heliocentric

Kepler formulated three principles, which today are known as _.

• Newton's Laws

• Kepler's laws

Tags

NGSS.HS-ESS1-4

The _ states that planetary orbits are ellipses with the sun at one focus.

• second law

• first law

• third law