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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Stars and the Universe

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Stars and the Universe

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Paper 3Theory (Core)3 marks

Understanding light travel time in astronomy.

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Light Travel Time from the Sun to Jupiter

The distance from the Sun to Jupiter is about 778 million kilometers. Calculate how long it takes for light to reach Jupiter.

  1. a

    Calculate the time it takes for light to travel from the Sun to Jupiter.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Stars and the Universe

Paper 3Theory (Core)2 marks

Description

Light Travel Time Calculation

The distance from the Sun to Mars is approximately 227.9 million kilometers. Calculate the time it takes for light to travel this distance.

  1. a

    Calculate the time it takes for light to travel from the Sun to Mars.

    Aim for approximately 2 distinct marking points.

    [2]