Magnitude and Vector Physics 1 By : Farev Mochamad Ihromi / 010 Nanang Cahyono / 012 Febrian Rohiim / 014 Elfrinsen Gustaf Adwinda / 016 Rokhmatu Siva’ / 040 Physics 1

Definitions of Magnitude and Vector State and properties of objects that can be counted or measured. Physical quantities that has units and direction.

1.1 Magnitude and Unit Magnitude : Something that can be measured  expressed with numbers (quantitative) Example: length, mass, time, temperature, etc. Measure : Compare something with something else similar as a unit

Unit:        The size of a magnitude set as a unit.        Example: - meter - degree Kelvin (K) - Kilogram (kg) - Ampere (A) System unit: Metric system: a. mks (meter, kilogram, second) b. cgs (centimeter, gram, second Non-metric system (British system) International System (SI) -Mks system of units has been enhanced the most widely used today. -There are seven principal amount and second dimension principal amount dimensionless

Dimension 1. Lowering unit from a quantity The way in which these quantities is the arrangement of the principal amount. function of Dimensions: 1. Lowering unit from a quantity 2. Check the accuracy of a formula or equation Methods dimensional explanation: 1. Dimensions right hand side = left side dimension 2. Each tribe is same dimension

Type of Magnitude Magnitude Principal: magnitude that could not be stated with simple amount. NO Besaran Pokok   Satuan    Singkatan Dimensi    1 Panjang Meter m L 2 Massa Kilogram kg M 3 Waktu Sekon s T 4 Arus Listrik Ampere A I 5 Suhu Kelvin K θ 6 Intensitas Cahaya Candela cd j 7 Jumlah Zat Mole mol N Principal dimensionless scale: NO Besaran Pokok   Satuan    Singkatan Dimensi   1 Sudut Datar Radian rad - 2 Sudut Ruang Steradian Sr

Magnitude derivatives: magnitude that can be expressed / down of the Magnitude principal. Besaran Pokok   Rumus   Dimensi 1 Luas panjang x lebar [L]2   2 Volume panjang x lebar x tinggi [L]3   3 Massa Jenis massa : volume [M] [L]-3  4 Kecepatan panjang : waktu [L] [T]-1   5 Percepatan kecepatan : waktu [L] [T]-2 6 Gaya massa x percepatan [M] [L] [T]-2  7 Usaha dan Energi gaya x perpindahan [M] [L]2 [T]-2   8 Impuls dan Momentum gaya x waktu [M] [L] [T]-1 

1.2 Vector z Vector Magnitude y x Magnitude characterized by a large magnitude and direction. Example: speed, acceleration, force Note: vector dependent on coordinate system

Length vector A = A = | A | (use absolute mark) Vector notation Length vector A = A = | A | (use absolute mark) Picture : P Q P : Point base vector Q : The end of the vector Arrow : Direction vector Length PQ = | PQ | : Length of vector Note: For the next, vector notation use bold A Bold Use arrow at the top A Italic

Notes a. Two vectors same if the direction and magnitude are same A B b. Two vectors not same if : 1. Same magnitude, different directions B A A B 2. Different magnitude, same directions A B A B 3. Different magnitude and directions A B A B

Vector applications in Daily Life Kite