NUSH PC1131 Notes

PC1131 Notes Foundations in Physics I Chapters 2 to 15 This is a compilation of questions and notes provided in PC1131. Made by LQ (uwu) Links of All LQ Notes: LQ Notes Links Document Topic Chapter 2: Mathematics and Physics I Chapter 3: Measurements Chapter 4: Measurements of Length Chapter 5: Measurements of Time Chapter 6: Mathematics and Physics II Chapter 7: Mass, Weight and Density Chapter 8: General Wave Properties I Chapter 9: General Wave Properties II: Reflection & Refraction of Waves Chapter 10: Sound Chapter 11: Electromagnetic Spectrum [No notes cuz LQ lazy sowee :(] Chapter 12: Mathematics and Physics III Chapter 13: Light I - Reflection Chapter 14: Light II - Refraction Chapter 15: Light III - Lenses Legend Yellow: Common Test 1 Orange: Midyear Exam Red: EOY Exam Purple : Practical Test

Chapter 2: Mathematics and Physics I 2.1 SI Units SI units is the designated universal classification of units. 2.1.1 SI Base Units There are 7 SI base units. Base physical quantities SI base unit Name Symbol length meter m mass kilogramme kg time second s electric current ampere A thermodynamic temperature kelvin K amount of substance mole mol luminous intensity candela cd 2.1.2 SI derived units Derived quantity SI derived unit Name Symbol area square meter m 2 volume cubic meter m 3 speed (velocity) meter per second m/s (m s -1 ) acceleration meter per second squared m/s 2 (m s -2 ) density kilogram per cubic meter kg/m 3 (kg m -3 ) 2.1.3 SI derived units with special names Derived quantity Name Symbol in SI base units force newton N m kg/s 2 (m kg s -2 )

pressure pascal Pa kg / m s 2 (kg m -1 s -2 ) energy joule J kg m 2 /s 2 (kg m 2 s -2 ) frequency (Used for calculating frequency of a wave: See 8.8 Frequency) hertz Hz s -1 2.2 Prefixes Prefixes are used to express physical quantities that are very big or small by making use of factors of 10, similar to scientific notation. The prefix is used in front of the unit (e.g. kilo meter, centi meter) Prefix Symbol Sci. Notation Femto- f 10 -15 Pico- p 10 -12 Nano- n 10 -9 Micro- μ 10 -6 Milli- m 10 -3 Centi- c 10 -2 Deci- d 10 -1 Kilo- k 10 3 Mega- M 10 6 Giga- G 10 9 Tera- T 10 12 Common Test 1 Revision Package Question 2 The following shows 3 values of length: X = 1.23 × 10 8 µm Y = 1.23 × 10 -7 Mm Z = 1.23 × 10 6 nm What is the correct order of the lengths from the longest to the shortest? [1]

A) X, Y, Z C) Y, Z, X B) Y, X,