Weighing and Measuring Techniques

Explain the difference between mass and weight. Explain the physical principles behind the operation of a typical mechanical balance. Describe how a typical electronic balance operates. List factors that can affect the accuracy of a mass measurement. Explain in general how volumetric measuring devices are read. Describe or demonstrate how to use a volumetric flask a graduated cylinder a pipette a burette and a syringe. Explain how calipers can be used to make linear measurements. Explain how a measuring microscope can be used to make linear measurements. Convert temperature readings between the following scales: Fahrenheit Celsius (centigrade) and Kelvin. Explain how alcohol thermometers and mercury thermometers are read. Explain how to check the accuracy of a liquid-filled thermometer.