SubjectCover

Pearson Edexcel International GCSE (9–1) · PHYSICS · Chapter

Stellar Evolution

37 practice questions

Start practising (19 questions)

Topics covered

Practice questions

1–10 of 19 · Easy

  1. Question 1

    1 mark · Easy

    State the name of the galaxy in which our Solar System is located.

    Answer and see the solution →

  2. Question 2

    1 mark · Easy

    Which of the following star classes is the hottest according to the classification system?

    1. A.O
    2. B.A
    3. C.G
    4. D.M
    Answer and check →

  3. Question 3

    2 marks · Easy

    Describe the overall shape of the Milky Way galaxy and state where the Sun is positioned within it.

    Answer and see the solution →

  4. Question 4

    2 marks · Easy

    A blacksmith heats a piece of iron in the forge. Explain how the colour of the iron relates to its temperature. How does this relationship also apply to stars?

    Answer and see the solution →

  5. Question 5

    2 marks · Easy

    Table: Star colour and temperature
    StarSurface temperature (K)Apparent colour
    X6500yellow
    Y4000red
    Z32000blue

    Which star in the table is classified as type O and which as type M? Explain your choices.

    Answer and see the solution →

  6. Question 6

    2 marks · Easy

    Explain why two stars of different colours must have different surface temperatures.

    Answer and see the solution →

  7. Question 7

    2 marks · Easy

    Table: Surface temperature and typical colour of some star classes
    Star classSurface temperature (K)Colour
    B20,000blue-white
    G5,800yellow
    K4,600orange
    M3,200red

    Which star class in the table has a surface temperature closest to the Sun? State the colour of this class.

    Answer and see the solution →

  8. Question 8

    1 mark · Easy

    Which statement describes the position of the Solar System within the Milky Way galaxy?

    1. A.At the centre of the galaxy
    2. B.Near the centre on a spiral arm
    3. C.About two-thirds out from the centre on a spiral arm
    4. D.Far outside the galaxy
    Answer and check →

  9. Question 9

    1 mark · Easy

    What are the two main forces that balance each other during the main sequence period of a star's life?

    Answer and see the solution →

  10. Question 10

    3 marks · Easy

    (a)

    Name the stage of a star's life just before it becomes a main sequence star.

    [1 mark]
    (b)

    State what process starts at the beginning of the main sequence stage.

    [1 mark]
    (c)

    How long does the main sequence stage typically last for a star like the Sun?

    [1 mark]
    Answer and see the solution →