Flashcards in Vectors Basics Deck (31)

Loading flashcards...

1

## Define vector

### quantity that is determined by its magnitude and direction

2

## what is the magnitude of a vector

### its length

3

## what is a scalar

### a number

4

## what is a zero vector

### a vector whos magnitude is 0 and who's direction is undefined

5

## how do we show a vector is a vector when handwriting

### underline (or arrow above)

6

## how do we show a vectors magnitude in handwriting

### with a line either side ||

7

## two vectors are equal when

### they have the same magnitude and direction

8

## what is the negative of a vector

### same magnitude but different direction

9

## how do we show a negative vector in handwriting

### minus sign before the vector

10

## if you multiply a vector by a positive scalar does its direction change

### no

11

## if you multiply a vector by a negative scalar does its direction change

### Yes, goes in opposite direction

12

## if you multiply a vector by 0, does its direction change

### no, it becomes 0

13

## what is a displacement vector

### the vector which goes from one point on a plane to another

14

## What is the x component of a vector

### the change in x

15

## what is the y component of a vector

### the change in y

16

## how to show vector addition on paper

### parallelogram

17

## how to show vector addition on paper

### triangle rule

18

## will multiplying a vector by a scalar change its magnitude

### yes

19

## vectors with magnitude of 1 are called

### unit vectors

20

## what can i represent

### x component

21

## what can j represent

### y component

22

## show the vector p in component form

### pi + pj, (pi, pj)

23

## how are vectors in a 2D and 3D plane equal

### when their corresponding components are equal

24

## too add vectors what do we do

### add their corresponding components

25

## to find the negative of vectors what do we do

### find the negatives of their corresponding components

26

## to subtract vectors what do we do

### subtracts their corresponding components

27

## to multiply a vector by a scalar what do we do

### multiply each component by the scalar

28

## how do we find the magnitude of a vector

### squaring each component, adding answers, get square root of this answer

29

## proj_a X is said

### projection of vector x onto vector a

30