GCSE Astronomy Topic 7

Ancient civilisations around the world used detailed observations of solar and lunar cycles for..

• agricultural systems

• religious systems

• time and calendar systems

• alignment of monuments

In the Geocentric model of the Solar System, which of the follow was thought to orbit the Earth?

• The Sun

• The Moon

• The Planets

• The Stars

Who noticed that the inner planets sometimes followed strange motions, which didn't work with the geocentric model, so added small cycles to the paths of planets called "epicycles" to the model to try to "fix" the model

• Claudius Ptolemy

• Tycho Brahe

• Nicolaus Copernicus

• Johannes Kepler

• Isaac Newton

Who made precise measurements of Mars that contributed to the adoption of the heliocentric model

• Claudius Ptolemy

• Tycho Brahe

• Nicolaus Copernicus

• Johannes Kepler

• Isaac Newton

Who put forward the heliocentric theory of the solar system in his book called "De revolutionibus orbium coelestium"

• Claudius Ptolemy

• Tycho Brahe

• Nicolaus Copernicus

• Johannes Kepler

• Isaac Newton

The early model of the Solar System which had Earth at the centre is called a __________ model

1 AU (Astronomical Unit) is defined as

• Distance from Earth to The Sun

• Distance from The Sun to edge of the Solar System

• Diameter of The Milky Way

• Distance from Earth to The Moon

Which distance is the longest?

• 1 AU

• 1 pc

• 1 l.y

• 100,000 m

What is the name of the model of the solar system which includes that all the planets and the Moon and the Sun are perfect spheres?

• Geocentric

• Spheriod

• Heliocentric

• Perfect Model

Which of the following defines the Deferent in Ptolemy's Geocentric Model?

• Circular path/orbit of a planet around the Earth

• Small circular paths taken by planet as it orbits the Earth

• Point at the opposite side of the Earth

• Distance to planet