daily agenda for november 19 th and 20 th n.
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Daily Agenda for November 19 th and 20 th

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  1. Daily Agenda for November 19th and 20th DO NOW: Please take out a pencil and paper and begin to copy the problem on the Projector Take your clicker from the front Tonight’s Homework: Finish POGIL Spring Scales(this will be handed in and graded!) Ch4. Review Problems #’s 9, 10, 12, 17, 19, 20, 25, 30, 36, 37 For these problems, write enough information so you may reference it for a quiz!

  2. What’s the BIG idea? • What is the difference between Mass, Weight, and Volume? Quantity of how much matter is in an object. Units: g, kg, mg, etc. Measurement of force of gravityacting on an object. Units: pounds (lbs) Newtons (N) How much space an object takes up. Units: cubic cm, Liters (L), cubic meters Mass Weight Volume

  3. If I stood on a regular bathroom scale in outer space (aka weightless environment), what would the scale read? • More than my weight on earth • Less than my weight on earth • My weight on earth • Zero • Not sure

  4. What’s the BIG idea? • If I stood on a regular bathroom scale in outer space (aka weightless environment), what would the scale read? ZERO! Weightlessness= Zero Gravity Weightlessness= Zero SUPPORT FORCE

  5. Does location affect my WEIGHT? • YES • NO • Not sure

  6. Does location affect my MASS? • YES • NO • Not sure

  7. Fnormal Fnormal=FGravity Fnormal=FGravity Fgravity Mechanical and Static Equilibrium

  8. Homework Review • For the Next 8 minutes, work with others to review homework. • IF YOU DID NOT COMPLETE THE HOMEWORK, PLEASE DO IT NOW.

  9. Quiz Review • You have 5 minutes to review answers to this quiz with classmates. Feel free to move locations. • YOU MUST review, make corrections, and be able to explain to the Teacher why you were correct/incorrect and what the right answer is. We will be around to check on your understanding! Answers: 1.A 6.B 4. D 2. A 7.A 5. B 3. A 1. C 6. B 4. B 2. C 7. B 5. A 3. C

  10. What is tension? On a piece of paper, write the following: • your own definition of the word “tension” • Examples of “tension” in real life. Have at least three written down!

  11. Examples of Tension!

  12. Examples of Tension!

  13. Examples of Tension! http://www.youtube.com/watch?v=3MdDobR65Oo

  14. POGIL- Tension • Work in groups of 4-5 • You may work at a lab bench, but make sure you are able to see the projector • Work efficiently on these problems! Whatever is not finished becomes homework! • At each check in with a teacher. DO NOT GO AHEAD UNTIL YOU HAVE DONE SO. • Complete at least up until #11

  15. Materials for POGIL • Materials Manager is responsible to return all the following items to the box: • 1-1000g mass (black) • 1 Piece of String • 2 Spring Scales • 1 Ruler hands scale ruler hook Mass

  16. Exit Slips! • Take an exit slip and SILENTLY write your answers (THREE questions!) • Then, we will review answers on Powerpoint. When the answer comes up, you will MAKE YOUR CORRECTIONS in a different color(or, circle them, etc…do something to make them stand out to me!) • These are not graded, so it’s ok if you make corrections BUT YOU MUST COMPLETE THEM! • To be turned in when done. These will be returned to you next class.

  17. 2.3Support Force think! Suppose you stand on two bathroom scales with your weight evenly distributed between the two scales. What is the reading on each of the scales? What happens when you stand with more of your weight on one foot than the other?

  18. 2.3Support Force think! Suppose you stand on two bathroom scales with your weight evenly distributed between the two scales. What is the reading on each of the scales? What happens when you stand with more of your weight on one foot than the other? Answer: In the first case, the reading on each scale is half your weight. In the second case, if you lean more on one scale than the other, more than half your weight will be read on that scale but less than half on the other. The total support force adds up to your weight.

  19. 2.5Vectors think! Two sets of swings are shown at right. If the children on the swings are of equal weights, the ropes of which swing are more likely to break?

  20. 2.5Vectors think! Two sets of swings are shown at right. If the children on the swings are of equal weights, the ropes of which swing are more likely to break? Answer: The tension is greater in the ropes hanging at an angle. The angled ropes are more likely to break than the vertical ropes.

  21. 2.5Vectors think! In your own words, please describe why it is more difficult to do pull-ups with one arm, instead of 2. Include key terms we have used today.

  22. TONIGHT’s Homework • Finish POGIL Spring Scales(this will be handed in and graded!) • Ch4. Review Problems #’s 9, 10, 12, 17, 19, 20, 25, 30, 36, 37 For these problems, write enough information so you may reference it for a quiz!