Balloon Rockets in M17Forces at work
Lachlan, Jye, Noah, Harry and Zachariah measuring the size of their balloon rocket
To find out how the volume of air in a balloon effects how far it goes.
I predict that when you let go the air will push the balloon across the string. When you have a bigger balloon you’ll get a bigger distance but with a smaller balloon you’ll get less distance.
Balloon Rockets Results Data
|Balloon size||Distance balloon travelled|
|Trial 1||Trial 2||Trial 3|
The 72cm balloon travelled an average distance of 250cm.
The 90cm balloon travelled an average distance of 460cm.
The 115cm balloon travelled an average distance of 768cm, which was the end of the line.
The largest balloon went the furthest of all of them. The smaller balloons went less far.
Some balloon rockets worked...http://pakenhamsprings.vic.edu.au/wp-content/uploads/sites/80/2015/08/20150730_144822.mp4
My prediction was correct. The more air, the further the balloon went. Some balloons didn’t work. The reason it might not have worked could be because water inside the balloon end might have stopped it from opening up and letting the air out. Sometimes the string line wasn’t pulled tight enough. Also, the straw might have been pressed down too tight and stopped the balloon from moving along the string.
Written by Ava Scott