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Physics A . August 15, 2012 Agenda

Physics A . August 15, 2012 Agenda Turn in : Signed Class Contract. Label the top right corner with your name and period #. Syllabus Review (continued) Quiz 1: Syllabus Safety Video. HW : Visit my website. Print out the Safety Contract. Have it signed. Due next Tuesday.

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Physics A . August 15, 2012 Agenda

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  1. Physics A. August 15, 2012 • Agenda • Turn in: Signed Class Contract. Label the top right corner with your name and period #. • Syllabus Review (continued) • Quiz 1: Syllabus • Safety Video. • HW: • Visit my website. Print out the Safety Contract. Have it signed. Due next Tuesday. • Cornell Notes Ch 1.1-1.2 pg 2-8. Include a sketch of Figure 1.4

  2. Physics A. August 17, 2012 • Agenda • Turn in: 1/2 pg summary of UCLA Lab-Accident Article • Assessment: Math Pretest • Lecture: Scalars, Vectors, and Motion in 1 Dimension. • Group Activity: Scalars • Multi Media: The Powers of Ten • HW: • Visit my website and do the exercises posted. • Identify two careers that require a strong physics background. How much money do they pay?? • Reminders: Visit my website. Print out the Safety Contract. Have it signed. Due next Tuesday.

  3. Physics A. August 21, 2012 • Agenda • Turn in: Safety Contracts • Field Trip: We get our textbooks today:) • Lecture: Vectors in 2 D (if we have time) • HW: • Identify two careers that require a strong physics background. How much money do they pay?? • Reminders: Quiz 1 this Friday (Know Difference between Scalars and Vectors. Know Difference between distance and displacement)

  4. Physics A. August 22, 2012 • Agenda • Turn in: 2 Careers that require physics • Warm Up: • Lec: Vectors in 2 D (Finish) • Group Activity: Vector Operations • Lec: Velocity and Acceleration • HW: • Section Review pg 85 (ALL) • Practice A, pg 89 (ALL) • Reminders: Quiz 1 this Friday

  5. Warm Up • A squirrel chasing another squirrel runs 3 meters East, then runs back 5 meters west. • What was the distance the squirrel traveled? ans: 8 meters b. What was the squirrel’s displacement? ans: -2 meters

  6. Physics A. August 24, 2012 • Agenda • Turn in: SR pg 85, and Practice A pg 89 • Review • Quiz 1: Vectors and Displacement • Lec: Vector Velocity and Acceleration • Group Activity: Practice A (pg 44) and Practice B (pg 49) • HW: Section Review #1-6, pg 47 CN pg 51-59 (2pg minimum)

  7. Physics A. August 28, 2012 • Agenda • Turn in: Section Review #1-6, pg 47 (due tomorrow) CN pg 51-59 (Have Ready) • Lec: Vector Velocity and Acceleration (Review) • Group Activity: Practice A (pg 44) and Practice B (pg 49) • HW: Finish Practice A and Practice B Section Review #1-6, pg 47

  8. Physics A. August 29, 2012 • Agenda • Turn in: Practice A, pg 44 • Group Activity: Practice B (pg 49) • HW: Finish Practice B (pg 49) Section Review #1-6, pg 47 Finish Practice C (pg 53)

  9. Answers Practice A pg 44 • 2.0 km to the east • 3.1 km • 680 m to the north • 3.00 h • 0.43 h • a. 6.4 h; b. 77 km/h to the south

  10. Answers Practice B (pg 49) • 2.2 s • 2.0 s • 5.4 s • -3.5x10-3 m/s2 • a.1.4 m/s; b. 3.1 m/s

  11. Sample Problem • A racing car reaches a speed of 42 m/s. It then begins a uniform negative acceleration, using its parachute and braking system, and comes to rest 5.5 s later. Find the distance that the car travels during braking.

  12. Physics A. Sept 4, 2012 • Agenda • Turn in: Practice B (pg 49) Section Review #1-6, pg 47 Practice C (pg 53) • Group Activity: Motion in 1 D Review • Lec: Velocity and Displacement with Constant Acceleration. • HW: Conceptual Challenge 1-3 (bottom of pg 50)

  13. Physics A. Sept 5, 2012 • Agenda • Assign Seats • Turn in: Conceptual Challenge 1-3 pg 50 • Warm up: • Group Activity: Practice D, pg 55 • Lec: Final velocity after any displacement. • Group Activity: Practice E, pg 58 • HW: Section Review #1-6, pg 59 Reminders: • Study for Quiz: Displacement, Velocity, Acceleration. • Bring TEXTBOOKS to class EVERYDAY!!

  14. Warm Up A car with an initial speed of 6.5 m/s accelerates at a uniform rate of 0.92 m/s2 for 3.6 s. Find the final speed and the displacement of the car during this time. Answer: 9.8 m/s; 29 m

  15. Sample Problem A person pushing a stroller starts from rest, uniformly accelerating at a rate of 0.500 m/s2. What is the velocity of the stroller after it has traveled 4.75 m?

  16. Practice D, Answers • 9.8 m/s ; 29 m • 19.3 m/s ; 59.0 m • -7.5 m/s; 19 m • 2.5 s; 32 m

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