Sunday, March 15, 2009

Science Component: Hypothesis, Materials, Design Choice

Hypothesis


A shorter barrel (volume) and a higher environmental temperature magnify the pressure exerted from the ethanol combustion resulting in the Nerf ball being fired a greater distance.

Materials

2 tennis ball cans with tops

12 inch strip of tape

1 pair of scissors




Canon construction design choice

The canon design was very simple, it consisted of a partially cut tennis ball can as the barrel. To achieve our desired angle we made the other can into the base by cutting it down and using a protractor to see if he got the right angle.

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