By:• Juan David Remolina• Andrew Masters• Alec Jackson

September 25th , 2012

Straw Rocket

Our Straw Rocket

A Balloon attached to one of the open side of the straw provides a place for air storage that will allow the rocket to move.

The straw works as the turbine exhausts in turbo jet engines.

Variables Identified

TimeDistancePressureDirectionHeight of flight

Variables AnalyzedTime (dependent variable):With the use of a stopwatch we took the time that it took the rocket to completely stop moving.

Length of the Balloon (independent variable):We measure the length of the balloon before we allowed the air to be released.

Length of balloon

Hypothesis

There is a direct relationship between the length of the balloon holding the air and the time the straw rocket travels.

Graph

Length of the Balloon (cm)

Time (s)

15 3.2317.5 3.7121 4.3424 5.19

Data Collected

Analysis of Data Collected and ObservationsFrom the Graph we can observe that there

is almost a linear relationship between the length of the balloon and the time that the straw rocket was in movement.Without any guidance system the rocket does not maintain a constant course that will allows to obtain a exact measurement of the total distance traveled by the rocket.

Straw Rocket

Thank you