Astronomers and Theories Review - S6E1a. & S6E1b.

What did Hubble discover?

• That there are many galaxies beyond the Milky Way.

• The phases of Venus.

• 4 of Jupiter's moons.

• The laws of gravitational force.

What was the Ptolemy's theory?

• He thought Earth was in the center of the universe.

• He discovered galaxies beyond the Milky Way.

• He thought the sun was at the center of the universe.

• He thought the planets revolved around the sun in elliptical orbits.

What is the difference between a Heliocentric & Geocentric model of the universe?

• There is no difference.

• One has the sun in the center and one has the earth at the center.

• One is a galaxy and one is a solar system.

Brahe's theory was incorrect, but his research was still valuable because.....

• He thought the Earth was at the center of the universe and everything went around it.

• He discovered galaxies beyond the Milky Way.

• He recorded precise observations of the planets & stars.

• He thought the planets revolved around the sun in elliptical orbits.

What is the Heliocentric model?

• Earth-centered universe.

• Sun-centered universe.

• That the planets revolve around the sun in elliptical orbits.

• That galaxies exist beyond the Milky Way.

What was Copernicus's theory?

• He thought Earth was at the center of the universe.

• He thought the planets revolved around the sun in elliptical orbits.

• He thought the sun was at the center of the universe.

• He discovered galaxies beyond the Milky Way.

Tags

NGSS.MS-ESS1-2

What is the Geocentric model?

• Sun-centered universe.

• Planets revolving around the sun in elliptical orbits.

• Galaxies existing beyond the Milky Way.

• Earth-centered universe.

What tool did Galileo use to make his discoveries?

• Satellite

• Telescope

• Space Shuttle

• Ancient buildings like Chicen Itza in Mexico.

  What does "geo-" mean?

• Earth
• sun
• Center

What does "helios" mean?

• Earth
• center of
• sun
• moon

Tags

NGSS.MS-ESS1-1