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# Physical Quantities and Measurement Apparatus This document lists common physical quantities measured in a chemistry lab, along with suggested apparatus for measuring time, temperature, length, mass, and volume. ## Common Physical Quantities * Time * Temperature * Length * Mass * Volume ## SI...

# Physical Quantities and Measurement Apparatus This document lists common physical quantities measured in a chemistry lab, along with suggested apparatus for measuring time, temperature, length, mass, and volume. ## Common Physical Quantities * Time * Temperature * Length * Mass * Volume ## SI Units * Time: second, minute, hour * Temperature: Kelvin, degree Celsius * Length: metre, centimetre, decimetre, millimetre * Mass: kilogram, gram, tonne * Volume: cubic metre, cubic centimetre, cubic decimetre ## Suggested Apparatus ### Time * **Digital stopwatch:** accurate to ±0.01 seconds. * **Analogue stopwatch:** less accurate, ±0.15 seconds. ### Temperature * **Alcohol thermometer:** suitable for a range of -10°C to 110°C. * **Digital laboratory thermometer:** easier to read than alcohol thermometers. * **Oral digital thermometer:** for body temperature. * **Temperature sensor connected to data logger:** automatically collects data. ### Length * **Metre rule:** ±0.1 cm accuracy. * **Measuring tape:** ±0.1cm to ± 0.5 cm accuracy, depending on type. ### Mass The document does not provide specific instrument suggestions for mass measurements. ### Volume The document does not provide specific instrument suggestions for volume measurements. **Note:** The document mentions that accuracy can be important in measurement practices. The specific measuring instrument used depends on the context and the required accuracy of the measurement.