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Chapter 2, Section 4

Chapter 2, Section 4. Projectile Motion: Launching Things into the Air. October 5, 2010 HW: 2.4 PTG #1-7, Skip 4, Due Thursday P/T Conferences: Oct. 6-7, 4-7:30pm . Report Cards will be given at conferences. Do Now: WDYS/WDYT Pg. 174 Agenda: Do Now LO/SC 2.4 Investigate pg. 174-176.

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Chapter 2, Section 4

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  1. Chapter 2, Section 4 Projectile Motion: Launching Things into the Air

  2. October 5, 2010HW: 2.4 PTG #1-7, Skip 4, Due ThursdayP/T Conferences: Oct. 6-7, 4-7:30pm . Report Cards will be given at conferences • Do Now: • WDYS/WDYT • Pg. 174 • Agenda: • Do Now • LO/SC • 2.4 Investigate pg. 174-176 • Learning Objective: • Compare horizontal motion to vertical motion in projectile motion • Success Criteria: • Apply the terms free fall, projectile, trajectory, and range • Provide evidence concerning projectiles launched horizontally from the same height at different speeds (including zero launch speed) • Explain the relationship between the vertical and horizontal components of a projectile’s motion

  3. 2.4 Investigate: Part A Coins • Set up Notebooks • Assign Jobs • #1-2 minutes • #2-5 minutes • #3-10 Minutes • #4-5 Minutes

  4. 2.4 Investigate: Part A • Teacher Demo of coins (pennies, quarters, penny and quarter) • http://www.youtube.com/watch?v=qErh402eJgI

  5. 2.4 Investigate: Part B Vertical and Horizontal Motion of a Projectile • Teacher Demo

  6. October 6, 2010HW: 2.4 PTG #1-7, Skip 4, Due ThursdayP/T Conferences: Oct. 6-7, 4-7:30pm . Report Cards will be given at conferences • Do Now: • Describe what would happen if you dropped a bowling ball and a marble from the same height. • Agenda: • Do Now • LO/SC • Physics Talk • Quiz • Learning Objective: • Compare horizontal motion to vertical motion in projectile motion • Explain the impact of gravity in free falling objects • Explain how initial velocity and the angle of velocity impact the range of an object with projectile motion • Success Criteria: • Apply the terms free fall, projectile, trajectory, and range • Provide evidence concerning projectiles launched horizontally from the same height at different speeds (including zero launch speed) • Explain the relationship between the vertical and horizontal components of a projectile’s motion • Recognize the factors that affect the range of projectiles • Infer the shape of a projectile’s velocity.

  7. 2.4 Physics Talk • What is a projectile? • What happens to two objects that are dropped at the same time if there is little/no air resistance? • An object traveling through the air • They will hit the ground at the same time

  8. 2.4 Physics Talk • Does the horizontal motion of the object affect the time it hits the floor? • No! Horizontal motion and vertical motion are independent of each other!

  9. 2.4 Physics Talk • What happens to velocity with projectiles? • Horizontal velocity remains the same! • Vertical velocity is constantly changing (acceleration due to gravity) • Horizontal and vertical velocity can be combined to predict the range of a projectile.

  10. What do you think now? • Answer question on pg. 181

  11. 2.4 Quiz

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