GCSE Space

What is the correct order of the planets in the solar system?

• Mercury, Venus, Mars, Jupiter, Earth, Uranus, Saturn, Neptune

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

• Mercury, Earth, Venus, Mars, Jupiter, Uranus, Saturn, Neptune

• Earth, Mercury, Saturn, Venus, Mars, Jupiter, Uranus, Neptune

Which planet gets closest to the Earth?

• Mercury

• Venus

• Mars

• Jupiter

Which planet spends most of its time closest to the Earth?

• Mercury

• Venus

• Mars

• Jupiter

As the radius of a planet's orbit increases the time taken for it to orbit (the planet's year) the sun becomes...

• shorter

• longer

• stays the same

Jupiter has four Galilean satellites, what are their names?

• Titan, Enceladus, Mimas, Dione

• Umbriel, Titania, Oberon, Cressida

• Triton, Nereid, Proteus, Thalassa

• Io, Europa, Ganymede, Callisto

Evidence for the Big Bang comes from:

• Cosmic microwave background radiation

• Abundance of primordial helium

• Redshift of distant galaxies

• Contortions of the space-time continuum

The Sun is currently at this stage in its 'life cycle':

• Supernova remnant

• Protostar

• Main sequence

• Red giant

A supernova occurs when a white dwarf exceeds the Chandrasekhar limit. How many solar masses is this limit?

• 0.14

• 1.4

• 14

• 140

The nearest star to Earth is:

• Proxima Centauri

• Alpha Centauri

• The Sun

• The Moon

Stars release energy through the conversion of mass via

• nuclear fusion

• nuclear fission

• radioactive decay

• combustion