Form 4 Physics Chapter 1

Hoo Sze smart physics SPM 2008 CHAPTER 1: INTRODUCTION TO PHYSICS 1.1 pinch Physics Physics: drive of all natural phenomenon Physics is a branch of acquirement centred on the study of matter, energy, and the lodge 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 springer(a) miscellany of physical quantities Derived quantities confederacy of sanctioned quantities via multiplication of particle Units SI Units standard surface for comparison internationally au and thentic 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 up-to-date Symbol l m t T I SI Units meter kilogram second potassium type A Units (Symbol) m kg s K A 1.2.2 scientific annotating (Standard Form) A × 10n where A ? 1 < 10 and n = whole number T he 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 form 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 carbon 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 sender Quantities Scalar Quantities Vector Quantities Quantities with magnitude only Quantities with magnitude and direction EXAMPLES outer plaza switch stimula te Velocity Example: Distance vs Displaceme! nt Kangar 138 km 507 km Butterworth 369 km Fauziah travelled from Kuala Lumpur to Kangar, a scoop of 507 km. After that she continued her journey to Butterworth, a distance of 138 km. From Butterworth, Fauziah then travelled back to Kuala Lumpur, a distance of 369 km. Distance is the resume DISTANCE TRAVELLED...If you want to get a dear essay, ordain it on our website: OrderEssay.net

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