SCIENCE 1013.2.7 Exploration 3.2.7 Explore: Punkin Chunkin Exploration Physics Sem 1 Points Possible: 25

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Coronado High School, Henderson SCIENCE 1013.2.7 Exploration 3.2.7 Explore: Punkin Chunkin Exploration Physics Sem 1 Points Possible: 25 In this practice, you will apply what you have learned i... n the lesson. Answer the questions below. Submit this to your teacher when you are done. 1. Use this article to answer the following questions about the punkin chunkin contest. (9 points) a. In your own words, summarize what happens at the punkin chunkin contest. Include a list of the different types of machines that are used. (3 points) b. Click the link for “Types of Punkin Chunkin Machines.” Compare a catapult and a torsion machine. (6 points) 2. Use this article to answer the following questions about the physics of the punkin chunkin contest. (16 points) a. Look at the equation for the work of air cannons: W = FΔr. What does F represent in the air cannon, and what does r represent? (2 points) b. The author of the article equates the work of the air cannon to kinetic energy. Then he solves for the final velocity of the pumpkin (vf). In order to get the pumpkin to go more quickly, what does he say must change? Why? (6 points) c. Look at the basic diagram of a trebuchet. Describe how the gravitational potential energy and kinetic energy change on the weight as it swings down. Then do the same for the pumpkin as it swings up. Note: The pumpkin is the orange ball attached to a rope in the drawing. (4 points) d. If you were to enter the punkin chunkin contest, which machine would you want to build and why? (4 points) [Show More]

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