Bottle Rocket Engine Lab Report

For the bottle rocket Terminator, there were three main test objectives. The variables to be tested where the fuel amount for the rocket, the angle of launch, and the nose shape of the rocket. The first test objective was to decide which nose for the rocket would fly better; a pointed cone nose, or a rounded nose. To test this, the rocket was initially made with a rounded nose; after the other two optimum objectives were filled, the nose was modified into a cone nose to test which was more successful. The second test objective was to find what the optimal launch angle for the rocket was. On the Test Plan the starting degree was 35°, then with each test the launch angle would increase by 5° up until 50°. The last test objective was to find what …show more content…
In physics, net force is the overall force acting on an object. This equation is written as follows: Fnet = Fthrust-Fg. The Fthrustis the force which makes an object move. In the case of the bottle rocket, the fuel being ejected from the rocket’s nozzle is thrusting the rocket into flight. In order to calculate Fnet, Fthrust & Fgmust be found first. The equation for Fthrustis as follows: ()(velocity)+(pressure)(nozzle area). The nozzle of the rocket is where the fuel was poured through and where the rocket was applied to the launcher. The equation for finding the area of a circle or circular area is r2. The amount of pressure for the rocket remained constant throughout all of the test launches, which was an amount of 80LB in2. As required, the amount of pressure was converted from LBin2to Nm2. The way to find velocity was previously stated. The equation for finding or mass flow rate is as follows: mass of waterflow time, the mass of water was calculated from the 10 fluid ounces that were used in the most successful launch. The flow time was constant for all rockets tested at 0.5 seconds. The fluid ounces had to be converted to metric units as well, then were converted into units of mass. The Fgis found by taking the mass of the rocket multiplied by acceleration, in equation form it appears …show more content…
The velocity of the rocket represents the distance the rocket gained over the amount of time it was in the air. The momentum represents how the mass of the rocket flew through the air per second. The height of the rocket represents how high the rocket flew with the data calculations from the most successful flight. The net force of the rocket represents both the thrust force and the force of gravity acting on the rocket as it flies. With all of the equations put together the rocket is completely represented in the way it