NWSA- ART 3D Comprehensive

 Project : TABLE TOP CATAPULT.

You will be making small catapult out of found materials that is designed to launch a standard sized ping pong ball. 

Critique will include a distance demonstration / competition      

Understanding Your Creative Problem:    
You are constructing an object that exerts stored energy.  What are other everyday  machines that have a similar approach to energy storage and release? Can parts of those machines be repurposed for your project? 

    
2 part Home work assignment: 
assigned Feb 17th:

Part 1 : Written assignment  
Type a 1 page paper that describes 3 types of catapult styles. Identify what makes each one unique from the next, and the general idea of the mechanics of how it propelled an object.  

Include links of your sources at the bottom of the page. 

Part 2: print 5 images of small home made catapults.
Use these images as reference for what types of materials to collect to construct your catapult.  You may use scrap wood and materials from the shop in addition to the materials you bring in. 

Think: 
possible materials? What size should this simple machine be?  
rubber bands. springs. bungee cords, tongue depressors, plastic silverware, soda bottles, dowels, paper towel tubes, coat hangers, paper clips, nuts , bolts, hooks ? 

DUE ON MARCH 24 : 1 paper, 5 images, catapult supplies.

MARCH 3 work shop day.

This is your opportunity to use the class room to build your project. Makes of hand tools if necessary. : )

MARCH 10 : CATAPULT DISTANCE COMPETITION.

REGULATIONS and GRADING :

1. Catapults must be designed to be fired from a table top. 

2. No larger than 18" x18" x18"

3. NO TEAM UPS...one project per student.

grades based on : 

1. Does it work ?  Does the catapult shoot a ping pong ball ?

2. Construction. It the catapult crafted well? Does it feel stable and sturdy?

3. Engineering. What is the method of propulsion?