Lesson 13 — The heliocentric model

• Heliocentric model
• Middelbare school
• havo, vwo
• Leerjaar 1

The heliocentric 

model

This lesson

• Closing off 3.7
  
• The heliocentric model
  
• Retrograde motion
  
• Galileo Galilei
  

Learning goals

• Name the creators of the geocentric model and their proof for the geocentric model

• Explain retrograde motion according to the geocentric and the heliocentric model
  

• Describe the contribution of Copernicus and Galileo galilei

Geocentric model

What does this mean?

Plato

Aristotle

Ptolemy

400 BC

350 BC

100 AD

Proof of the Geocentric model

Problems in the geocentric model

Proof of the Geocentric model

• The Stars seem to rotate around the Earth
  
• The Sun seems to rotate around the Earth
  
• The Moon Rotates around the Earth
  
• The ground you are standing on is not moving
  

Retrograde motion

The heliocentric model

•  Helios — greek god of the sun
• Heliocentric model – sun entered model

• First developed by Copernicus

Copernicus

• 1473 – 1543
  
• Developed the heliocentric model before the invention of the telescope
  
• Was afraid to share his ideas

Retrograde motion – Heliocentric

Learning goals

• Name the creators of the geocentric model and their proof for the geocentric model

• Explain retrograde motion according to the geocentric and the heliocentric model
  

• Describe the contribution of Copernicus and Galileo galilei