Pearson Edexcel International GCSE (9–1) · PHYSICS · Section
Classifying Stars
15 practice questions
Practice questions
1–8 of 8 · Easy
Question 1
1 mark · Easy
Answer and see the solution →State the name of the galaxy in which our Solar System is located.
Question 2
1 mark · Easy
Answer and check →Which of the following star classes is the hottest according to the classification system?
- A.O
- B.A
- C.G
- D.M
Question 3
2 marks · Easy
Answer and see the solution →Describe the overall shape of the Milky Way galaxy and state where the Sun is positioned within it.
Question 4
2 marks · Easy
Answer and see the solution →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?
Question 5
2 marks · Easy
Answer and see the solution →Table: Star colour and temperature Star Surface temperature (K) Apparent colour X 6500 yellow Y 4000 red Z 32000 blue Which star in the table is classified as type O and which as type M? Explain your choices.
Question 6
2 marks · Easy
Answer and see the solution →Explain why two stars of different colours must have different surface temperatures.
Question 7
2 marks · Easy
Answer and see the solution →Table: Surface temperature and typical colour of some star classes Star class Surface temperature (K) Colour B 20,000 blue-white G 5,800 yellow K 4,600 orange M 3,200 red Which star class in the table has a surface temperature closest to the Sun? State the colour of this class.
Question 8
1 mark · Easy
Answer and check →Which statement describes the position of the Solar System within the Milky Way galaxy?
- A.At the centre of the galaxy
- B.Near the centre on a spiral arm
- C.About two-thirds out from the centre on a spiral arm
- D.Far outside the galaxy