Firing and Reflection

When we fired our cannon, as Group 3, our cannon did not fire. Instead, our cannon instantly filled with smoke and the ball began to burn. Our cannon heated up, but did not melt or deform.

Another group, Elsie, Jermaine and Sarah, fired their ball 20 ft. When the cannon went off, there was a large bang, and the end of the barrel soon began to melt. If the volume of the cannon had been less, our cannon's pressure may have built up better.

The ring around our barrel enabled friction to be minimized, and seemed to have prevented the barrel from melting.