CDAT MMXXI :

Medieval Warfare

We declare war!!! You have been challenged by the Black Knight, Sir Reilly, Princess Brown, and Queen Langan to build a projectile weapon of your own to defend the CDAT territory! You may form an alliance of up to 3 people to complete this mission. In class, you will have researched projectile weapons in history, explored different materials, and practiced using various kinematic equations that are used to calculate distance, time, velocity and acceleration for objects in one-dimensional and two-dimensional motion. Use this knowledge to calculate, plan, and build your projectile weapon so that it will hit a specific target. Remember your training, and Godspeed, my friends!

Purpose:

This project will be used to evaluate your:

• understanding of Physics concepts and calculations.
• effectiveness of experimental design and data collection.
• engineering skills: project management, design and build a model, evaluate and modify to improve.
• ability to research, use evidence to justify design, and accurately communicate information.

Deliverables:

• Due August 19th - share project site
• Due August 21st - Annotated Bib (LA) - turn in to Langan's eClass dropbox, 1 from EVERY student
• Due August 22nd - Project Proposal (LA, Phys)
• Due August 23rd - Share out to the class (LA)
• Due August 29th - Project Design with calculations (Phys, Eng)
• Due September 6th - First Version Project Built (evaluate and redesign) (Eng)
• Due September 12th - Final Project Built (Eng). BATTLE!
• Due September 17th - Lab Report (LA, Phys)
• Due September 18th and 19th - Test in Physics (Phys)
• Due September 20th - Reflection (LA)

Grade Breakdown:

Physics:

• Project Proposal - Classwork grade (AKS - 2b5. plan and execute an experiment to investigate the projectile motion of an object by collecting and analyzing data using kinematic equations.
• Project Design with calculations - Quiz grade (AKS - 2b2. calculate range and time in the air for a horizontally launched projectile (no air resistance). 2b4. explain the independence of vertical and horizontal motion of a projectile along the trajectory (conceptually explain launch angle, velocity and acceleration at all points.))
• Lab Report - Lab grade (AKS - 2b6. predict mathematically and describe how changes to initial conditions (height and horizontal velocity) affect the time of flight and range for horizontal projectiles.) Distinguished Achievement Level: Use experimentally obtained evidence to develop models that explain the role of each variable (starting height, velocity in the x-direction, etc.) in two-dimensional motion
• Test in Physics - Summative grade (AKS 2. - Obtain, evaluate, and communicate information about the relationship between distance, displacement, speed, velocity, and acceleration as functions of time for two-dimensional motion.

LA:

• Project Proposal - Formative grade (AKS - LA11.C.23: produce clear and coherent writing in which the development, organization, and style are appropriate to task, purpose, and audience)
• Annotated Bibliography - Formative grade (AKS - LA11.C.27: gather relevant information from multiple authoritative print and digital sources, using advanced searches effectively; assess the strengths and limitations of each source in terms of the task, purpose, and audience; integrate information into the text selectively to maintain the flow of ideas, avoiding plagiarism and overreliance on any one source and following a standard format for citations )
• Share out to the class - Formative grade (AKS - LA11.D.33: present information, findings, and supporting evidence, conveying a clear and distinct perspective, such that listeners can follow the line of reasoning, alternative or opposing perspectives are addressed, and the organization, development, substance, and style are appropriate to purpose, audience, and a range of formal and informal tasks)
• Lab Report - Formative grade (AKS - LA11.C.23: produce clear and coherent writing in which the development, organization, and style are appropriate to task, purpose, and audience)
• Reflection - Summative (AKS - LA11.C.29: write routinely over extended time frames (time for research, reflection, and revision) and shorter time frames (a single sitting or a day or two) for a range of tasks, purposes, and audiences; LA11.E.36: demonstrate command of the conventions of standard English grammar and usage when writing or speaking; LA11.E.41: acquire and use accurately general academic and domain-specific words and phrases, sufficient for reading, writing, speaking, and listening at the college and career readiness level; demonstrate independence in gathering vocabulary knowledge when considering a word or phrase important to comprehension or expression)

Engineering:

(AKS TEH7.D.4: apply knowledge of the engineering design process to solve engineering/ technological problems in the STEM workplace - see the my "General Info" in Content area of eClass for the full list of indicators)

• Project Design with calculations - Formative grade, all parts measured and "mated" or constrained in 3D format such as onShape.com, showing all measurements in Drawing files for team discussion and actual build. Limited to maximum of 4 2x4x8
• Project Initial Build - Formative grade, catapult must be built very close to plan, and tested for distance and accuracy. Record data of testing for reference, and digital input (spreadsheet) and analysis. All projectile distance measurements are in "meters", and velocity is in "meters/second". (rubric to be posted, but in general catapult should be built capable of firing a ball)
• Project Secondary Build - Some changes are expected, and any changes must be documented, which could include paper recordings, or comments in onShape.com, as long as team members can see these changes to measurements. Record data about this build, minor updates are permitted prior to final battle as long as changes are documented. All projectile distance measurements are in "meters", and velocity is in "meters/second".
• Final Build and BATTLE! - Summative grade for engineering students. Catapult (or other) should be functioning at a consistent level, with good distance and accuracy (more detailed rubric to be posted soon).

DQ: Can you accurately launch a given projectile so that it hits a designated target?

STEP 1: Investigate

1. Explore one and two dimensional motion (Physics)
2. Research and read about projectile weapons (LA)
3. Consider which projectile technique is most suitable to the purpose (Eng)

STEP 2: Plan

1. Develop project proposal - Template HERE
   1. Pick one weapon to build. Write a justification explaining why you chose the weapon you did, how you plan to build it, and what should be happening at each point in the trajectory
   2. Choose appropriate equation for weapon trajectory calculations and solve mathematically (Phys)
2. Finalize Plan.
   1. Develop a task list.
   2. Determine roles and responsibilities.
   3. Lay out the Timeline and deadlines.

STEP 3: Design

1. Compile and submit materials list (Eng)
2. Compile and submit procedures (Eng)
3. Create a visual concept/design/virtual model of your weapon, keeping in mind the math/physics measurements (Eng)
4. Apply calculations and explain how changing initial conditions (launch angle & horizontal velocity) impacts flight time and range (distance traveled) for projectiles. (Phys)
5. Share out progress with whole group - Clearly communicate ideas (LA)
6. Receive teacher and peer feedback.(LA)

STEP 4: Create

1. Build your weapon based on the design and calculations. (Eng)
2. Design an experiment to test your weapon.
   1. Calculate and predict where it will land,
   2. collect and analyze data. (Physics)
3. Test weapon using the designed experiment (Physics/Eng)
4. Reflection/report out of what went wrong and the plan to fix it (LA)

STEP 5: Evaluate ( repeat Design and Create based on testing)

1. Reevaluate, modify, and improve weapon (Eng)
2. Consider possible sources of error and come up with solutions to improve results. (Phys/Eng)
3. Describe what went wrong and justify why the new design will work better
4. Make sure your weapon depicts your findings, experiments, and observations correctly.
5. Go to War!
6. Reflection (LA)