Views of the Solar System

Fill in the blank: Copernicus proposed a _______ view of the solar system.

• geocentric

• heliocentric

• lunar

• stellar

What did Galileo observe that challenged the geocentric view?

• Moons orbiting Jupiter

• Stars orbiting Earth

• Planets orbiting the Moon

• Sun orbiting Earth

Which century did Copernicus propose his heliocentric theory?

• 14th

• 15th

• 16th

• 17th

Fill in the blank: The geocentric view was believed for _______ of years.

• hundreds

• thousands

• tens

• millions

Who used laws of motion and gravity to prove the heliocentric view?

• Galileo

• Copernicus

• Newton

• Ptolemy

What did Ptolemy use to support his geocentric view?

• Scientific tools

• Historical information

• Telescopes

• Gravity

What did people think of Copernicus's ideas initially?

• Accepted

• Ridiculous

• Obvious

• Unimportant

Fill in the blank: The heliocentric view states that Earth orbits around the _______.

• Moon

• Sun

• Stars

• Planets

Why was Copernicus's view of the solar system not accepted at first?

• It was too complex

• It contradicted religious beliefs

• It was not published

• It was not understood.

The geocentric model was replaced by the _______ model.

• Heliocentric

• Lunarcentric

• Martian

• Jovian