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Cambridge IGCSE Physics practice

Paper 3 structured question: The Solar System

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3

Paper

5

Marks

Topic

The Solar System

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Paper 3Theory (Core)5 marks

Accretion Model of Planet Formation

Description

Accretion Process

The accretion model explains how planets form from dust and gas in a rotating disc around the Sun.

  1. a

    Explain how the accretion model accounts for the differences between rocky and gaseous planets.

    Aim for approximately 5 distinct marking points.

    [5]

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Paper 3 structured question: The Solar System

Paper 3Theory (Core)1 marks

Description

Planetary Composition

The inner planets are small and rocky, while the outer planets are large and gaseous. This is explained by the accretion model of Solar System formation.

  1. a

    State the four inner planets of the Solar System.

    Aim for approximately 1 distinct marking point.

    [1]