1 / 16

Vectors

Vectors. Notation & Construction. Vectors & Scalars. A vector is a number that has a magnitude (5m/s) and a direction (to the right). A scalar is a number that only has magnitude (30 s). In Physics we use VECTORS most often. Vectors and Scalars.

keisha
Download Presentation

Vectors

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Vectors Notation & Construction

  2. Vectors & Scalars • A vector is a number that has a magnitude (5m/s) and a direction (to the right). • A scalar is a number that only has magnitude (30 s). • In Physics we use VECTORS most often.

  3. Vectors and Scalars • The following are examples of Vectors and Scalars VectorsScalars 4 m East 4 m 9.8 m/s2 down 14 m/s2 40 m/s to the right 55 mph 10 N upward 400 s $50.00

  4. Using Vectors • We can use vectors to solve problems graphically (no Physics equations), if we know how to draw them. • A vector is drawn as an arrow pointing in the direction of the vector. The higher the magnitude, the longer the arrow.

  5. Drawing Vectors • Example: Two race cars are both traveling to the right. Car A has velocity 10 m/s, and Car B has velocity 20 m/s. • The arrows are in the direction of the cars, and their length corresponds to the speed. A (10 m/s) B (20 m/s)

  6. Drawing Vectors • Car A is going North at 5 m/s, and Car B is going East at 10 m/s. A B N S W E

  7. Vector Notation • On a blank sheet of graph paper, draw a set of Axis like this one.

  8. Vector Notation • Label the directions North, South, East, West. N W E S

  9. Directional Notation • Directional Notation measures angles from the East/West axis. The length is determined by whatever scale is useful (1 cm = 5 m/s…) N W E S

  10. Directional Notation • Draw the vector 10 m/s, 30˚ NE. 1 cm = 5 m/s. N W E S 2 cm 30˚

  11. Directional Notation • Draw the vector 400 m, 40˚ SE. 1 cm = 100 m. N W E S 40˚ 4 cm

  12. Bearing Notation • Add the following degree measurements to you axis. N 90˚ W 180˚ E 0˚ S 270˚

  13. Bearing Notation • Bearing notation is used by sailors and aviators to pilot their ships and planes. N 90˚ W 180˚ E 0˚ S 270˚

  14. Bearing Notation • Draw the vector 100 km @ 100˚. 1 cm = 100 km. N 90˚ W 180˚ E 0˚ S 270˚ 1cm 100˚

  15. Bearing Notation • Draw the vector 10 m/s @ 270˚. 1 cm = 10 m/s. N 90˚ W 180˚ E 0˚ S 270˚ 270˚ 1 cm

  16. Vector Notation Practice • Using the previous examples as a guide, complete the classwork on vector construction.

More Related