Physics for Cambridge IGCSE Coursebook - Making Measurements - PDF
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Uploaded by GallantKansasCity
Harvard University
Cambridge
David Sang
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Summary
This physics document provides an overview of measuring length and volume, including practical techniques and procedures. It details how to measure the thickness of paper and volume by displacement, along with questions to further test understanding.
Full Transcript
1 Making measurements 2 A stack of paper contains 500 sheets of paper. cm 3 cm 3...
1 Making measurements 2 A stack of paper contains 500 sheets of paper. cm 3 cm 3 100 100 The stack has dimensions of 0.297 m x 21.0 cm x 50.0mm. a What is the thickness of one sheet of paper? b What is the volume of the stack of paper in cm3? Figure 1.7: Measuring volume by displacement. Quantity Units length metre (m) 1 decimetre (dm) = 0.1m 1 centimetre (cm) = 0.01m 1 millimetre (mm) = 0.001 m 1 micrometre (µm) = 0.000 001m 1 kilometre (km) = 1000m volume cubic metre (m3) 1 cubic centimetre (cm3) = 0.000 001m3 1 cubic decimetre (dm 3) = 0.001 m3 Table 1.1: Some units of length and volume in the SI system. I KEY EQUATION Questions 1 The volume of a piece of wood which floats in water can be measured as shown in Figure 1.8. a Write a paragraph to describe the procedure. b State the volume of the wood. cm3 cm3 80 80 70 60 water steel block wood Figure 1.8: Measuring the volume of an object that floats. 5 >
