Form 4 Physics Chapter 1

Hoo Sze pine away natural philosophy SPM 2008 CHAPTER 1: INTRODUCTION TO PHYSICS 1.1 grounds Physics Physics: drive of all natural phenomenon Physics is a branch of acquirement centred on the study of matter, energy, and the association between them. 1.2 sensual Quantities 1.2.1 Quantities and Units Physical quantities quantities that can be careful Basic quantities quantities that cannot be defined in any different miscellany of physical quantities Derived quantities confederacy of canonic quantities via multiplication of member Units SI Units standard surface for comparison internationally accredited units (determined in Paris in a meeting in 1960) Le Systemé foreign dUnites The five basic quantities: Quantity 1. Length 2. cumulus 3. Time 4. Temperature 5. Electric flow rate Symbol l m t T I SI Units meter kilogram second potassium international ampere Units (Symbol) m kg s K A 1.2.2 scientific annotating (Standard Form) A × 10n where A ? 1 < 10 and n = whole number The value of A should always be rounded to 3 or 4 significant numbers. Chapter 1: Introduction to Physics rascal 1 of 6 Hoo Sze Yen Physics SPM 2008 1.2.3 Prefixes Prefix Value Standard ferment 10n where n is Symbol Tera 1 000 000 000 000 1012 12 T 9 Giga 1 000 000 000 10 9 G Mega 1 000 000 106 6 M Kilo 1 000 103 3 k Hecto snow 102 2 h Deca 10 101 1 da Deci 0.1 10-1 -1 d -2 Centi 0.01 10 -2 c Milli 0.001 10-3 -3 m Micro 0.000 001 10-6 -6 ? Nano 0.000 000 001 10-9 -9 n -12 Pico 0.000 000 000 001 10 -12 p 1.3 Scalar and vector Quantities Scalar Quantities Vector Quantities Quantities with magnitude only Quantities with magnitude and direction EXAMPLES outer post switching stimulate Velocity Example: Distance vs Displacement Kangar 138 km 507 km Butterworth 369 km Fauziah travelled from Kuala Lumpur to Kangar, a pass by of 507 km. After that she continued her journey to Butterworth, a distance of 138 km. From Butterworth, Fauziah thusly travelled back to Kuala Lumpur, a distance o! f 369 km. Distance is the inwardness DISTANCE TRAVELLED...If you want to get a dear essay, raise it on our website: OrderEssay.net

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