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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Stars and the Universe

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3

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3

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Topic

Stars and the Universe

Exam-style question

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Paper 3Theory (Core)3 marks

The Solar System consists of the Sun and various celestial bodies including planets, moons, and asteroids.

Description

The Solar System

The Sun is the central star of the Solar System, containing 99.86% of its total mass. This mass is crucial for the gravitational forces that keep the planets in orbit around it.

  1. a

    Explain the significance of the Sun's mass in maintaining the orbits of the planets.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Stars and the Universe

Paper 3Theory (Core)4 marks

Description

Planetary Orbits

The gravitational force exerted by the Sun is responsible for the elliptical orbits of the planets in the Solar System.

  1. a

    Discuss how the mass of the Sun affects the orbits of the planets.

    Aim for approximately 4 distinct marking points.

    [4]