Exam-style practice

Half-life answer explanations

Review worked answers and explanations for Half-life. Aligned to Cambridge IGCSE Physics.

Questions

Supported

Review

Mode

Nuclear

Topic

Answer explanations

Question 1 of 6

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

Paper 3Theory (Core)1 marks

Description

A sample of a radioactive isotope has a half-life of 5 years. After 15 years, how much of the original sample remains?