Skip to content

ZIMSEC A-Level Physics

7.4Radioactivity

Radioactivity in ZIMSEC A-Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic42 practice questions2 lessons

Overview

Form 6.

Learning objectives

What the syllabus expects you to be able to do.

  1. 7.4.1Understand and apply: alpha, beta and gamma radiation and decay equations.
  2. 7.4.2Understand and apply: radioactive decay: activity, decay constant and half-life.

Lessons

  • Alpha, beta and gamma radiation and nuclear decay equations

    50 min

    Full access
  • Radioactive decay: activity, decay constant and half-life

    55 min

    Full access

Join to read every lesson, or see what Full access includes.

Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Radioactivity: sample question

1 mark

A radioactive sample has a half-life of 8.0 hours. What fraction of the original nuclei remains undecayed after 32 hours?

Choose one answer

Turn Radioactivity into a strength.

Practise with instant marking, see your mastery grow and get a study plan built around your exam date.