Vectors & Scalars

Question 1

Scalar

Answer 1

quantities having only magnitude (size, number and a unit)

ex: Distance 10m Mass 5kg

Question 2

Vector

Answer 2

quantities having both magnitude (size) and direction

ex: Displacement 10m East Velocity 50m/s West

Question 3

Representing a vector

Answer 3

A vector is represented by and arrow pointing in a direction and drawn to a selected scale

Question 4

Resultant

Answer 4

A single vector that represents the addition of 2 or more vectors
Represented as a dashed line

Question 5

Concurrently

Answer 5

Acting on the same point or object at the same time

Question 6

Orthogonal Vectors

Answer 6

Perpendicular Vectors (vectors at right angles)

Question 7

Adding two orthogonal vectors (at right angles) mathematically

Answer 7

The magnitude of the resultant is obtained through the pythagorean theorem.

The angle is found through an inverse trig function

Question 8

Collinear Vectors (vectors at 0° and 180° to each other)
(Two vectors pointing in the same direction)

Answer 8

0° angle between them
Add the magnitudes of the vectors together
The resultant is the maximum value possible

Question 9

Collinear Vectors (vectors at 0° and 180° to each other)
Two vectors pointing in the exact opposite direction

Answer 9

180° between them
Subtract the magnitudes of the vectors together
The resultant is the minimum value possible

Question 10

Concurrently

Answer 10

Acting in the same point or object at the same time

Question 11

Orthogonal Vectors

Answer 11

Perpendicular vectors: vectors at right angles

Question 12

Adding two orthogonal vectors (at right angles) mathematically

Answer 12

The magnitude of the resultant is obtained through the Pythagorean theorem.

The angle is found through an inverse trig function.