Chapter 1_May11 - Science and the scientific method gives...

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1 Science and the scientific method gives birth to technology. We must be the producers of knowledge, not just the consumers of technology. That will not happen unless we open our minds to science and the scientific approach and open our hearts to the values of science.
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2 Science requires freedom: Freedom to enquire, to challenge, to think, to imagine the unimagined. It cannot function within the arbitrary limits of convention, nor can it flourish if it is forced to shy away from challenging the accepted.
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3 “The content of scientific work is what is discussed, not the person who produced it, regardless of their nationality or the color of their skin or the god they choose to worship or the ethnic group they were born into or their gender. These are societal values worth defending, not just to promote the pursuit of science, but to have a better and more humane society. These are the central core of universal values that any truly modern society must possess. …”
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4 CHAPTER 1 CHAPTER 1 INTRODUCTION TO MATTER  AND MEASUREMENT
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5 CONTENTS CONTENTS 1.1 Introduction 1.2 Classification of Matter 1.3 Properties of Matter 1.4 Units of Measurement 1.5 Uncertainty in Measurement 1.6 Dimensional Analysis
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6 Learning outcomes: Able to differentiate between the  three  states  of  matter . Able to distinguish between  elements compounds  and  mixtures . Able to distinguish between  physical  and  chemical  properties. Able to use and convert different  units  of  measurement.
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7 1.1 Introduction Chemistry  is the study of   properties of  materials and changes they undergo Central role in science and technology. Has a high impact on our daily living, e.g.  health and medicine, energy and environment,  materials and technology and food and  agriculture. Able to contribute to problem solving analysis.
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8 1.2 Classification of Matter Matter Physical material - anything that has  mass  and  occupies space . Classifications of Matters Matter can be classified according to its: Physical state  (solid, liquid or gas) Composition  (element, compound or mixture)
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9 Classification of Matter Physical State Composition Gas Liquid Solid Pure substance Mixture Element Compound Homogeneous Heterogeneous
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10 1.2.1 State of Matter (Physical  State) Gas no fixed volume/shape easy to compress/expand molecules are far apart move at high speed often collide
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11 Con’t: 1.2.1 State of Matter  (Physical State)  Liquid volume independent of container slightly compressible molecules closer than gas move rapidly but can slide over each other
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12 Con’t: 1.2.1 State of Matter  (Physical State)  Solid defined volume & shape Incompressible molecules packed closely in definite arrangement/rigid shape
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13 1.2.2 Composition Pure Substance
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This note was uploaded on 06/16/2011 for the course ENGR 101 taught by Professor Ahmed during the Summer '11 term at Multimedia University, Cyberjaya.

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Chapter 1_May11 - Science and the scientific method gives...

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