How do you find the magnitude of a vector?

• The?magnitude?of a vector tells us its?size?or?length
  • For a?displacement?vector it tells us the?distance?between the two points
  • For a?position?vector it tells us the?distance?of the point from the?origin
• • This is given in the formula booklet

How do I find the distance between two points?

• Vectors?can be used to find the distance (or displacement) between two points
  • It is the?magnitude?of the vector between them
• Given the?position vectors?of two points:
  • Find the displacement vector between them
  • Find the magnitude of the displacement vector between them

What is a unit vector?

• A?unit vector?has a?magnitude?of 1
• It can be found by dividing a vector by its?magnitude
  • This will result in a vector with a size of 1 unit in the direction of the original vector
• Exam Tip