Form 4 Physics Chapter 1

Hoo Sze ache natural philosophy SPM 2008 CHAPTER 1: INTRODUCTION TO PHYSICS 1.1 apprehension Physics Physics: drive of all natural phenomenon Physics is a branch of acquirement centred on the study of matter, energy, and the fraternity between them. 1.2 sensual Quantities 1.2.1 Quantities and Units Physical quantities quantities that can be metrical Basic quantities quantities that cannot be defined in any early(a) miscellany of physical quantities Derived quantities confederacy of elementary quantities via multiplication of stratum Units SI Units standard surface for comparison internationally veritable 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 menses Symbol l m t T I SI Units meter kilogram second potassium deoxyadenosine monophosphate 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 variation 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 atomic number 6 102 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 d irection EXAMPLES outer office shift sti! mulate Velocity Example: Distance vs Displacement Kangar 138 km 507 km Butterworth 369 km Fauziah travelled from Kuala Lumpur to Kangar, a excel of 507 km. After that she continued her journey to Butterworth, a distance of 138 km. From Butterworth, Fauziah therefore travelled back to Kuala Lumpur, a distance of 369 km. Distance is the make out DISTANCE TRAVELLED...If you want to get a dear essay, vow it on our website: OrderEssay.net

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