Catapult+Journal

Catapult Journal

Day 1: Today we started the catapult project. We looked through all of the instructions and all the details of our project.

Day 2: Today we researched other catapults to help get ideas. There was a many ideas, but only a few looked useful to our situation. Day 3: Today we built the Quentin 3000 and our catapult. The Quentin 3000 got more distance, but the catapult was more accurate. So, we combined them together to make this.

Day 4-Today we researched Hooke's Law and some other stuff. Also, we got rid of the original catapult design and used this as our frame. Day 5- Today we experimented with orbit; In 76 day the Earth will crash into the sun. Day 6-Today we made minor adjustments, and worked on the Springs and Masses Sim. I made some progress but it was hard to understand so ihad to ask for help.

Day 7- Today we worked on the the Springs and Masses Sim again. It was difficult to understand today also.

Day 8-Today we tested the catapults and made small adjustments. We experimented with different types of rubber bands to see which one gave us maximum effectiveness. Day 9-Finished the Springs and Masses and projectile motion simulations and handed it in.

Day 10- Today we tested the catapult again, but with the arm in different a position to see the effects it would have on distance and accuracy. Also, we worked on the user's guide. Day 11-Today we competed with our catapult. We got 26.6% as our and average, but we should have got another 100 but it "bounced." We missed every shot that wasn't in the one meter. Also, we kept working on the user's guide. Day 12-Today we got our target back and decided how we are going to finish the user's guide. Day 13-Today we got somebody from the LGI to test our catapult, also Harry sucks eggs.