- Specification route
- CPAC
- Question bank
- 2 questions
- Course stage
- AS / Year 12
Practise this topic
2 standard questions. No sign-in required.
Practise Biology maths and data skills
Sessions use up to the requested number of available questions. Standard practice uses levels 1–5.
Sample questions
A student measures the mass of five different potato cylinders using a digital balance that reads to two decimal places. Which set of recorded data follows the correct conventions for precision?
Show clue
Raw data should always be recorded to the exact resolution of the instrument used, maintaining a consistent number of decimal places.
Show answer and explanation
Answer: $2.34\ g,\ 2.10\ g,\ 1.95\ g,\ 2.05\ g,\ 2.44\ g$
CPAC 4: Makes and records observations. Data must be recorded methodically and with consistent precision. If the balance reads to two decimal places, all values must be recorded to two decimal places, even if they end in zero.
In a risk assessment, what is the strict difference between a 'hazard' and a 'risk'?
Show clue
A sharp knife is the danger object. Cutting your finger is the specific bad event.
Show answer and explanation
Answer: A hazard is an object or chemical that has the potential to cause harm, whereas a risk is the likelihood of that harm occurring and the nature of the injury.
CPAC 3. A hazard is the source of potential harm (e.g., concentrated HCl). The risk is the specific consequence/probability (e.g., splashing in the eye causing blindness).
Practise this topic
2 standard questions are available (levels 1–5). No sign-in required.