Solar System Models

According to Copernicus, what causes the year and seasons on Earth?

• Earth’s wobble on its axis

• Earth’s rotation around its axis

• Earth's revolution around the sun

• Earth’s movement relative to the sun and moon

Tags

NGSS.MS-ESS1-1

Whose heliocentric model is seen as the first step in the development of the modern models of the solar system?

• Galileo

• Copernicus

• Ptolemy

• Kepler

A model of the solar system in which Earth and the other planets revolve around the sun.

• Heliocentric

• Geocentric

Tags

NGSS.MS-ESS1-1

A model of the universe in which Earth is at the centre of the revolving planets and stars. This includes the sun revolving around the Earth.

• Heliocentric

• Geocentric

How did the heliocentric model of the Universe explain retrograde motion of the planets? Pick the TWO correct ones.

• orbital speeds led to the illusion of retrograde motion

• planetary motion was apparent and not real

• by using epicycles & deferents

• the model did not fully explain retrograde motion

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

This model is no longer supported.

• Heliocentric

• Geocentric

Tags

NGSS.MS-ESS1-1

Which of the following was the main reason the geocentric model was questioned?

• The sun moves across the sky from east to west every day

• The moon moves around the earth every day

• The stars move across the sky every night

• The planets display retrograde movement in the sky.

What is the biggest difference between the Geocentric Model and the Heliocentric Model?

• the shape of the planets' orbits

• the movement of the moon

• the center of the solar system

Over time, scientists have changed their model of our solar system. It has transitioned from

• a sun-centered to an moon-centered model.

• a sun-centered to an earth-centered model.

• an earth-centered to a sun-centered model.

• a moon-centered to an earth-centered model.

What is at the middle of a Heliocentric system?

• Mars

• Moon

• Sun

• Earth