IGCSE Coordinated Science

Multiple Choice Quiz: Nuclear Physics and Space Physics

P5.2 Radioactivity and P6.1 The Solar System
Instructions: Answer all questions. Choose one answer only for each question. Your responses will be submitted to the Master Google Sheet.
1. Which type of radiation is stopped by a sheet of paper?
2. Which type of radiation is the most penetrating?
3. What is radioactive decay?
4. Which radiation has no charge and no mass?
5. What is meant by the half-life of a radioactive isotope?
6. A radioactive source has a count rate of 600 counts per minute. After one half-life, what is the count rate?
7. Why should radioactive sources be handled with tongs?
8. Which device is used to detect ionising radiation?
9. Which radiation is made of fast-moving electrons?
10. Why is ionising radiation harmful to living tissue?
11. Which is a suitable storage method for radioactive materials?
12. Which radiation is most suitable for detecting leaks in underground pipes?
13. What is at the centre of the Solar System?
14. Which force keeps planets in orbit around the Sun?
15. Which statement about planets is correct?
16. What is a galaxy?
17. Which planet is closest to the Sun?
18. Which list shows the objects in order from smallest to largest?
19. Which object orbits a planet?
20. Which statement best describes the motion of planets in the Solar System?