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Exam-style practice

Stars answer explanations

Review worked answers and explanations for Stars. Aligned to Cambridge IGCSE Physics.

Answer explanations

Question 1 of 6

Review the answer support, then move sideways through the set.

Paper 3 structured question: Stars

Paper 3Theory (Core)1 marks

Description

Galaxies and Stars

Galaxies consist of billions of stars, including the Sun, which is located in the Milky Way galaxy. Other stars in the Milky Way are much farther from Earth than the Sun. Distances in astronomy are measured in light-years, where one light-year is the distance light travels in a year in a vacuum.

  1. a

    State What is the primary component of a galaxy?

    [1]