Introduction to Addition and Subtraction of Vectors

The video tutorial introduces vectors, explaining their notation, magnitude, and direction. It covers how to add and subtract vectors using a grid, resulting in a new vector called the resultant vector. The tutorial also explains how to calculate the magnitude of a vector using Pythagoras' theorem and provides practical examples to illustrate these concepts.

What is a vector primarily defined by?

• A magnitude and a direction

• A speed and a time

• A single point

• A color and a shape

How is a vector typically represented in notation?

• With a single letter

• With two letters and an arrow

• With a number and a symbol

• With a color code

When adding vectors, what is the resulting vector called?

• The terminal vector

• The opposite vector

• The resultant vector

• The initial vector

What is the magnitude of a vector a + b if a is (3, 3) and b is (-5, 3)?

• 8

• 7

• 6

• 5

What happens when you move against the direction of a vector?

• It becomes a multiplication

• It becomes an addition

• It becomes a division

• It becomes a subtraction

In vector notation, what does a negative sign indicate?

• A change in color

• A change in speed

• A change in direction

• A change in size

How do you calculate the magnitude of a vector using Pythagoras' theorem?

• By multiplying the lengths of the sides

• By subtracting the lengths of the sides

• By adding the lengths of the sides

• By squaring the lengths of the sides and adding them