Green Bridge Learning Resource Nchekwa Maka Vectors In Two Dimensions

Gbogbo ọrọ náà

A vector carries both size and direction, making it the natural language for displacement, velocity and force. In two dimensions you can add, subtract and scale vectors, and find a magnitude using Pythagoras.

In this lesson you will use vector notation, position vectors and unit vectors, find the magnitude of a vector, and add, subtract and multiply vectors by scalars.

Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Vectors In Two Dimensions. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

If a = (4, 1) and b = (1, 3), then a + b =: A. (5, 4) B. (4, 3) C. (3, -2) D. (5, 3) Answer: A
If a = (4, 1) and b = (1, 3), then a - b =: A. (5, 4) B. (3, -2) C. (-3, 2) D. (3, 2) Answer: B
The magnitude of (5, 4) is: A. 9 B. √41 C. 20 D. 41 Answer: B
A unit vector has magnitude: A. 0 B. 1 C. 2 D. its length Answer: B
Vector addition follows the: A. triangle law B. circle law C. square law D. inverse law Answer: A