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Exploring Projectile Motion: Drop-Shoot and Clicker Questions

This lesson focuses on understanding projectile motion through hands-on demonstrations and clicker questions. Students will explore the independence of X and Y vectors by observing what happens when one ball is dropped while another is shot horizontally. They will predict which ball hits the ground first and analyze the vertical components of their velocities. The session includes clicker questions related to launching angles and their effects on distance traveled over flat and inclined surfaces, enhancing comprehension of kinematics principles in a fun and interactive way.

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Exploring Projectile Motion: Drop-Shoot and Clicker Questions

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Presentation Transcript

  1. 2-D Kinematics

  2. Drop-Shoot predictions • Clicker questions about the drop-shoot demonstration • Do this AFTER talking about components, and why we split things into X & Y • Independence of X & Y vectors

  3. One ball is dropped. The other is shot horizontally simultaneously. Which hits the ground first? • Dropped ball • Horizontally shot ball • Both at the same time

  4. One ball is dropped. The other is shot horizontally simultaneously. Which has larger vertical-component to its velocity at the end when they hit? • Dropped ball • Horizontally shot ball • Both are the same time

  5. Projectile firing across flat ground • Several clicker questions to be done BEFORE the projectile launcher demo • Do these AFTER drop-shoot demo and 1-2 numerical questions (3.24 & handout #1)

  6. Which object has a faster horizontal component to velocity? All have the same TOTAL speed. • Object launched at 30 degrees • Object launched at 45 degrees • Object launched at 60 degrees

  7. Which object spends more time in the air when flying over FLAT ground? All have the same TOTAL speed. • Object launched at 30 degrees • Object launched at 45 degrees • Object launched at 60 degrees

  8. When firing a projectile across FLAT ground, the projectile will go furthest if launched at an angle: • 0-30 degrees • 30-60 degrees • 60-90 degrees

  9. Launch projectile over FLAT ground • 15 degrees • 30 degrees • 40 degrees • 45 degrees Show the next few Clicker questions before 50, 60, 75 degrees.

  10. Which goes further? • Object launched at 30 degrees • Object launched at 60 degrees • Both go the same distance

  11. Firing projectiles across NOT-FLAT ground • Clicker questions upcoming

  12. When firing a projectile down a hill, the projectile will go furthest if launched at an angle: • Greater than 45 degrees • Equal to 45 degrees • Less than 45 degrees

  13. When firing a projectile up a hill, the projectile will go furthest if launched at an angle: • Greater than 45 degrees • Equal to 45 degrees • Less than 45 degrees

  14. Hunter-Monkey demo • Clicker question predictions

  15. Where will the bullet go? • Above the monkey • Below the monkey • Hit the monkey

  16. Bullet fired much faster. What will it do? • Above monkey • Below monkey • Hit the monkey

  17. Bullet fired much slower. What will it do? • Above monkey • Below monkey • Hit the monkey

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