Vectors

Question 1

A vector is . . .

Answer 1

a quantity which has both magnitude and direction

Question 2

When finding displacement in vectors I need to find . . .

Answer 2

the distance and bearing between the two points

Question 3

Two vectors are parallel if and only

Answer 3

if they are moving in the same direction

Question 4

i and j notation are used in cartesian vectors

Answer 4

i represents the horizontal component

j represents the vertical component

Question 5

Cartesian vectors involve i, j notation

Answer 5

The i vector refers to horizontal movement.

The j vector refers to vertical movement.

Question 6

When adding Cartesian vectors,

Answer 6

you need to combine the same components

For example,

a = 2i + 3j b = i + j

a + b = (2 + 1)i + (3 + 1)j = 3i + 4j