We decided to use Boyle's law for our cannon, since it is inversley proportionate. This means that the smaller the space, the higher the pressure, therefore blowing the cannonball farther. The angle of our cannon had to be just right; too high, and the ball would have more air resistance; too low and it wouldn't go as far distance.We decided that the angle should be somewhere between 30 and 40 degrees. For the design, we decided to cut a groove in the side of one of the cans and to lay the other can in the groove. Then, the building began!
Deciding the design
Starting to sketch a cannon idea
Deciding the angle of the cannon
Alonzo starting to cut our cannon
Chosen design
Materials
- Scissors
- Two tennis ball cups
- Two tennis ball tops
- Protractor
Start putting cannon pieces together
Alonzo tries to poke a hole in the bottom of the tennis tube
Our finished cannon
Cannon calcluations
Very nicely set-up in MY opinion. You really layed-out every step in a comprehensible way! Great! Oh, and good luck with the firing of your cannon!
ReplyDeleteI agree with Natassja. It was really easy to follow along with your procedures! Keep up the excellent work!
ReplyDeleteThanks guys!!
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