Edexcel IGCSE Physics 7.1 Radioactivity Units Questions
Recognise becquerel, centimetre, hour, minute and second as the specified units, and use their symbols accurately.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Recognise becquerel, centimetre, hour, minute and second as the specified units, and use their symbols accurately.
This question is about astrophysics.
The boxes give some units of time and some definitions.
Draw a straight line from each unit of time to its correct definition.
- 1 day -> the time for the Earth to rotate once
- 1 year -> the time for the Earth to orbit the Sun
Marking guidance:
- One mark for each correct line.
- Deduct 1 mark for each additional line.