A student measures the pressure of a fixed mass of gas in a constant-volume container using a pressure gauge calibrated in pounds per square inch (psi\text{psi}psi).
The gauge reading is recorded as 38.5±0.6 psi38.5 \pm 0.6\text{ psi}38.5±0.6 psi.
Convert this pressure reading into kilopascals (kPa\text{kPa}kPa), ensuring your answer is given to 3 significant figures. Coordinate the absolute uncertainty in the converted pressure value, giving it to 1 significant figure.
Use the following conversion factors:
26 exam-style questions on OCR A A Level Physics Making measurements and analysing data, covering Measurements and uncertainties. Each one has a worked solution and a mark scheme showing where the marks go.