Procedure and Chemistry Component

                                               

How Pressure Temperature and Volume (gas laws) play a role in the design:

The Gay Lussac's law states that the volume is constant and the pressure of gas is proportional to the temperature in the project. When lighting the ethanol, it increases the temperature in the ethanol and the volume of its gas increases and pushes the ball out.

Chemical Equation for the combustion of Ethanol Oxygen:

C2H5OH+3O2---2CO2+3H2O

What the justification for their Design: We chose 45* to angle our cannons because we think that 40* would be too low and anything aimed to higher than 50* would shoot straight up and not get our maximum shooting range.

We choose our design because I believe that the most efficient design because of it reinforced areas and chambers

Materials: 2 tennis ball canisters and lids, 18inches of tape a ruler, and scissors

Difficulties in construction: In constructing the cannon we had difficulties trying to allow the cannon to stand. Our first try was cutting the lids of tennis ball cans and tapping them on the ends of the

Record the distance your cannon shot the nerf ball.(do in March)

1. Measure the first tennis ball cannon 4 inches above the bottom of the bottle . Then after the first mark draw a second mark with within 4 inches of the first mark. Cut the first Tennis ball cannon first and second mark of the cannon. Then we stab a hole near three inches from the bottom to allow the gas to escape. We do this same procedure for the second tennis bottle we have. Exception: do not put a hole 3 inches above the bottom of the bottle of the second tennis ball can.

2. Then take the Second tennis ball can and cut the bottom of the bottle off where the first mark from the bottom starts and then cut the second mark which is at the top of tennis ball bottle off. The second cannon you should do the same rules.




3. Cut the very bottom or base of the second tennis ball cannon. After you cut the two bottles you should have a top bottom, a cut middle part bottle and half of the end of the first bottle on bottom. Put them all together. Remember if you have cut the wire on the second tennis ball bottle do it now we need it later on you should only have a top plastic part of the bottle with the wire on top of it.

4. Tap these pieces together with duct tape to hold them in place.

5.After taping the pieces together measure 45 degrees from the bottom of the cannon and then once you get a mark of 45* insert the last part of the tennis ball cannon which is the very base of the cannon we cut earlier and insert onto the end of the cannon.

 

6. Take the piece of  silver wire left and insert it onto the front of the cannon to raise cannon to shoot a little higher.