Back to the full dot-point answer
ScotlandPhysicsQuick questions
Area 6: Radiation
Quick questions on Half-life: radioactive decay and its applications - SQA National 5 Physics
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
State what is meant by the half-life of a radioactive source. [1 mark]
What is q2?Show answer
A source of activity has a half-life of . Find its activity after . [2 marks]
What is q3?Show answer
State why an isotope used as a medical tracer usually has a short half-life. [1 mark]
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.