1. 2-D motion (no projectiles – yet) Physics Chapter 3 section 1 Pages 84-87

2. Scalars and Vectors Scalar – physical quantity that has only magnitude, but no direction Examples  number of people on a bus  volume  volume  pages in a book

3. Scalars and Vectors Vector – physical quantity that has magnitude and direction Examples  velocity, acceleration Multiplying vectors by a scalar results in a vector quantity

4. Vectors Vector symbol = “  “ over the abbreviation and direction Length of the vector in a diagram = magnitude 1 meter 2 meters

5. Vectors Vectors can be added graphically but only if the units and measured quantities are similar

6. Vectors Resultant vector – vector representing the sum of 2 or more vectors Draw vectors to scale Add or subtract by head to tail method

7. Vectors

8. Vectors Properties of vectors - 2 vectors act at the same point - Resultant vector has the net effect of both component vectors of both component vectors - Triangle method

9. Vectors Vectors can be added in any order because they are independent of each other Subtract by adding a vector of opposite sign