Space physics — IGCSE Sciences - Co-Ordinated (0973) questions by topic

Space physics questions list the seven other planets in order from the Sun, identify nuclear fusion as the process powering a stable star, name the planet orbiting between Venus and Mars, and name the force keeping Earth in orbit, worth from 1 to 12 marks.

Calculate, state, identify and describe top the command words in this IGCSE Co-ordinated Sciences topic, with complete also common: identify a planet by its orbital position relative to two named neighbours, not by size. 7 real questions from 2025 papers make up this page. Submit each attempt for instant marking to check a fusion-versus-fission distinction, or an orbital order, is stated exactly right.

May–June 2025, Paper 11

Question 40 · 1 mark

What is between the orbits of Mars and Jupiter? A the asteroid belt B the orbit of Saturn C the orbit of the Earth D the orbit of Venus

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May–June 2025, Paper 12

Question 40 · 1 mark

The orbit of a planet lies between the orbit of Venus and the orbit of Mars. What is the planet? A Saturn B Jupiter C Earth D Uranus

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May–June 2025, Paper 21

Question 40 · 1 mark

Planet X and planet Y orbit the Sun and are at different distances from the Sun. The gravitational field strength of the Sun is greater at the position of planet X than it is at…

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May–June 2025, Paper 22

Question 40 · 1 mark

Which process describes how energy is released from a stable star? A fission of helium into hydrogen B fission of hydrogen into helium C fusion of helium into hydrogen D fusion of…

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May–June 2025, Paper 31

Question 10 · 10 marks

The Sun is the closest star to the Earth. State the name of the force that keeps the Earth in orbit around the Sun.

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May–June 2025, Paper 32

Question 11 · 10 marks

The Earth is a planet in our Solar System. List the other seven planets in our Solar System in order from closest to the Sun. Do not include Pluto in your list. (Earth is already…

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May–June 2025, Paper 41

Question 9 · 12 marks

The Sun is the star in our Solar System. State the two most common elements found in the Sun.

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