1. Vectors

2. Any quantity that requires both magnitude and direction
Vector Quantity
Any quantity that requires both magnitude and direction
Examples:
Force
Velocity
Acceleration

3. Scalar Quantity
A quantity that can be described by magnitude only (not involving direction)
Examples:
Mass
Volume
Speed

4. Vector or Scalar?
You just picked up some fellow classmates at chic-fil-a in your new rockin’ sharkmobile. You make the 1 mile drive to CTA for some fun after school learning with Ms. Meyer.

5. Vector or Scalar?
You are headed to an Ohio State football game. You bike all 13.8 miles North East to campus.

6. Vector or Scalar?
You are standing at the CTA girl’s basketball game. You go nowhere. You want to cheer for your team!

7. Arrows Show Vector Quantities
represented by an arrow
length of arrow is longer or shorter depending on the magnitude of the quantity
Shorter = smaller magnitude
Longer = larger magnitude
direction of arrow gives direction… duh
The arrow is the vector!

8. Vectors of the Same Direction
Just add them together!

9. Vectors of the Opposite Directions
Find the difference between them (subtract)

10. The sum of 2 or more vectors
Resultant
The sum of 2 or more vectors
This includes vectors of the opposite direction
– they are still summed, just one is negative!

11. Parallelogram rule
To find the direction of 2 vectors that aren’t in the same of opposite direction

12. Force Vectors
Parallelogram: R=sqrt(x2 + y2)
?? N
30 N
40 N