1. Describe how you contributed to your team, what did you do, were their any major contributions you are especially proud of?
2. Did your team apply the EDP successfully? (i.e. did you identify the problem & constraints, brainstorm solutions, test and prototype a solution, refine the design).
3. What changes did your team make to your design?
4. what worked well in your design? Identify what did not work so good.
5. Describe any energy conversions/forces/motions/Newton’s laws that apply to a catapult mechanism.
2. Did your team apply the EDP successfully? (i.e. did you identify the problem & constraints, brainstorm solutions, test and prototype a solution, refine the design).
3. What changes did your team make to your design?
4. what worked well in your design? Identify what did not work so good.
5. Describe any energy conversions/forces/motions/Newton’s laws that apply to a catapult mechanism.
1. I am the logical man or collector, whatever, just the person who collecting material or doing some logical stuff. I helped draw the prototype and make mangonel. I will collect the material we need to make a bigger mangonel.
2. I think so, but I think we identify the problem first, and design 2 possible sketches for mangonel, and went through discussion, cancel one, and start to make it.
3. We used to thing triangle will be a good pedestal but from people who made mangonel in the past, they always used square to be the pedestal. So we changed it.
4. The final result is surprised all of us, it worked perfect actually. We were worried about our machine couldn't shoot accurately because we didn't immobilize the arm, which throw the paper rock. I mean it may turn left or right when we blast off. So, that's a surprise.
5. We used Elastic potential energy, and transfer it to kinetic energy. In addition, our machine applied Newton's first and third law, the elastic transfer elastic potential energy to the kinetic energy to the "arm", and "arm" throws away paper rock, gives it energy to move. (Paper rock was at rest first.). What's more, air gives resistance to paper rock, makes it slow down and fall down at last.
2. I think so, but I think we identify the problem first, and design 2 possible sketches for mangonel, and went through discussion, cancel one, and start to make it.
3. We used to thing triangle will be a good pedestal but from people who made mangonel in the past, they always used square to be the pedestal. So we changed it.
4. The final result is surprised all of us, it worked perfect actually. We were worried about our machine couldn't shoot accurately because we didn't immobilize the arm, which throw the paper rock. I mean it may turn left or right when we blast off. So, that's a surprise.
5. We used Elastic potential energy, and transfer it to kinetic energy. In addition, our machine applied Newton's first and third law, the elastic transfer elastic potential energy to the kinetic energy to the "arm", and "arm" throws away paper rock, gives it energy to move. (Paper rock was at rest first.). What's more, air gives resistance to paper rock, makes it slow down and fall down at last.