Recalibrating, forces, resultant calculations Monday, September 12, 2016
Unit 2: Static Forces Monday, 9/12 Warm-up What does a vector represent? Row leaders – please make sure your people have a ruler for today. Upcoming important dates Monday, 9/12 – homework quiz Tuesday, 9/13 – last day to re-quiz over the summer assignment Friday, 9/16 – unit quiz and review due Monday, 9/19 – unit test
Homework Quiz Take out your challenging a claim homework. Three minutes to complete.
Re-calibrating
What is a vector A line representing a magnitude 14 Newtons 5 meters Speed of 6 m/s A arrow representing a direction 14 Newtons of tension force to the right (think of the string from our lab on Thursday. Traveling 5 meters north Traveling at a velocity of 6 m/s west
Evaluating magnitude and direction Complete the practice questions from section one.
Check your answers
Connecting to the lab How does the practice you completed connect to the lab from last week?
What is a resultant Vector sum of two or more vectors. It is the result of adding two or more vectors together (note: vectors are drawn tip to tail) Example Diagram source: http://www.physicsclassroom.com/class/vectors/Lesson-1/Resultants
Methods of determining the magnitude of the resultant. Resultant (R) Graphically Pythagorean theorem
Head to tail practice
Practice – adding vectors graphically
Adding vectors using Pythagorean theorem Review CNs
Resolving vectors using Pythagorean theorem Practice
Revisiting FBDs
Pulling it all together
Homework Review your notes from today and practice from today. Complete static equilibrium practice
Cool Down How would you choose a method to determine the resultant of two or more vectors? Can you do all of the ‘I can statements’? If no what actions are you going to take to make sure you can?