<p> Names______</p><p>Grading Rubric for Marble Roller Coaster </p><p>Criteria Points - 50</p><p>Ideas pages (5pts)</p><p>Changes, Ideas, initial sketch </p><p>Lab Questions (15pts)</p><p>All questions and calculations complete and accurate</p><p>Roller Coaster (30pts)</p><p>Coaster was constructed (10)</p><p>Coaster followed rules of Construction (10)</p><p>Marble traveled the entire length of the track (5) and landed in cup (5) </p><p>Bonus +2 if any present and working bonus hill bonus loop Jumps Best design</p><p>Totals /50</p><p>Roller Coaster Project Guidelines and Rules- 50 pts Good luck! Have FUN!!!</p><p>1. There will be 2 people in each group.</p><p>2. Each group can build only one roller coaster, you may not use anything meant to be a track.</p><p>3. Each group will be given one box, one roll of electrical tape, one Dixie cup, 60 straws. You may also use hot glue, paper or cardstock. Other items from the classroom can be used with permission; you may use anything you bring in. </p><p>4. The roller coaster must be able to fit in, on, under or around the box </p><p>5. Each roller coaster must have at least 1 loop, one turn and 1 hill. Your marble is expected to roll by its self the entire length of the track. Your marble must end in the Dixie cup.</p><p>6. You will receive bonus points for any of the following: </p><p> more than required loop more than required hill</p><p> jumps (marble must leave the track obtaining a greater height and return to the track)</p><p>Best design (1st, 2nd , 3rd place)</p><p>Ideas Page: Examine the model coaster.</p><p>Sketch what you are going to try to build</p><p>Lab questions and calculations</p><p>1. List at least 3 problems you encountered and how you corrected them.</p><p>Problem 1______</p><p>Solution ______</p><p>Problem 2 ______</p><p>Solution ______</p><p>Problem 3 ______</p><p>Solution ______2. Describe what it was like working with your partner (3 sentences minimum)</p><p>______</p><p>Add flags to your coasters marking the following points: </p><p>Highest KE, Highest PE, Lowest KE, Highest KE:</p><p>1. Calculate the Potential energy of the marble at the top of the first hill. PE= mgh</p><p>Weight of the marble = Mass of marble ______kg * 10 = ______N</p><p>Height of the marble off the ground ______m</p><p>PE at top of first hill= ______</p><p>2. Calculate the Potential energy of the marble at the bottom of the first hill. PE= mgh</p><p>Weight of the marble = Mass of marble ______kg * 10 = ______N</p><p>Height of the marble off the ground ______m</p><p>PE at the bottom of the first hill =______</p><p>1. Calculate the Kinetic energy of the marble at the top of the first hill.</p><p>Weight of the marble = Mass of marble ______kg </p><p>Length of first hill ______m</p><p>Time ______s</p><p>Velocity ______m/s</p><p>KE= ½ mv2</p><p>KE at top of first hill= ______</p><p>2. Calculate the Kinetic energy of the marble at the bottom of the first hill. KE= ½ mv2</p><p>Weight of the marble = Mass of marble ______kg Length of first hill ______m</p><p>Time ______s</p><p>Velocity ______m/s</p><p>KE at the bottom of the first hill =______</p><p>3. How much energy was lost to heat through friction in your roller coaster system? ______</p><p>Conservation of Energy</p><p>KEi + PEi = KEf + PEf</p>