conclusion and error analysis
1. Our group chose this final design because there was more force and it raised off the ground so that the catapult could go farther.
2. We set the projectile in motion by pulling back in a bottom of a Dixie cup glued to a popsicle stick by a string and releasing the string so that the projectile swings forward and the stick stops while the projectile keeps going forward.
3. One force that acted upon the projectile was the air resistance while it was flying in the air. Another force was the applied force. The string was pulled back so when the string was let go, the projectile flew in the air. Gravity is the last force to act on it, this caused the projectile to fall to the ground.
4.The tightness of the rubber band helped the catapult have more force and made it work as well as it did.
5. All three of Newton's laws had an effect on the catapult. The first law took place when the catapult was released. The catapult was stopped by a stick while the projectile kept on going. The second law took place when we had to use a projectile with a certain mass. We used a projectile with a smaller mass because it went farther than a projectile with a greater mass. The last law took place when we pushed the close pin. The action was pushing down the cloth pin and the reaction was the catapult swinging forward.
6. The impact of friction on this project was huge. The friction was on the projectile. As soon as the projectile hit the ground the friction stopped it, making it not go as far. This is kinetic friction when a projectile with applied force is stopped.
7. When the Dixie cup stick pulled back, it had a lot of potential energy. As soon as it was released, the energy transformed into kinetic energy. When the Dixie cup stick was stopped the kinetic energy was still in the projectile, making it still move. Then when it landed, the friction stopped the energy and the kinetic energy is now potential.
8. One thing that we could have done to make the catapult to make it better is to raise the catapult so the catapult could swing all the way around for more force . Another thing that I would do is to make the catapult bigger so the Dixie cup stick would have even more force. The last thing that I would do is to have the rubber band stretched out and turned tighter so the projectile would have a greater distance.
9. Another experiment that I would do with the catapult would be to test how high we can get the projectile to go and see if there is a limit on the height it can go.
2. We set the projectile in motion by pulling back in a bottom of a Dixie cup glued to a popsicle stick by a string and releasing the string so that the projectile swings forward and the stick stops while the projectile keeps going forward.
3. One force that acted upon the projectile was the air resistance while it was flying in the air. Another force was the applied force. The string was pulled back so when the string was let go, the projectile flew in the air. Gravity is the last force to act on it, this caused the projectile to fall to the ground.
4.The tightness of the rubber band helped the catapult have more force and made it work as well as it did.
5. All three of Newton's laws had an effect on the catapult. The first law took place when the catapult was released. The catapult was stopped by a stick while the projectile kept on going. The second law took place when we had to use a projectile with a certain mass. We used a projectile with a smaller mass because it went farther than a projectile with a greater mass. The last law took place when we pushed the close pin. The action was pushing down the cloth pin and the reaction was the catapult swinging forward.
6. The impact of friction on this project was huge. The friction was on the projectile. As soon as the projectile hit the ground the friction stopped it, making it not go as far. This is kinetic friction when a projectile with applied force is stopped.
7. When the Dixie cup stick pulled back, it had a lot of potential energy. As soon as it was released, the energy transformed into kinetic energy. When the Dixie cup stick was stopped the kinetic energy was still in the projectile, making it still move. Then when it landed, the friction stopped the energy and the kinetic energy is now potential.
8. One thing that we could have done to make the catapult to make it better is to raise the catapult so the catapult could swing all the way around for more force . Another thing that I would do is to make the catapult bigger so the Dixie cup stick would have even more force. The last thing that I would do is to have the rubber band stretched out and turned tighter so the projectile would have a greater distance.
9. Another experiment that I would do with the catapult would be to test how high we can get the projectile to go and see if there is a limit on the height it can go.