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Physics Lab

By cmho16 Feb 25, 2013 462 Words
Physics 1
Lab #10

Chapter 7 Lab:Pop Rockets
1. List and explain two ways that you could improve the flight performance of your rocket. Your responses must consider the materials you had available to work with.

The rocket I produced was a normal looking rocket compared to the group of rockets I was working with. It was medium size in length and thickness. The head of the rocket was a little wide and lose, and the flaps were not arrow dynamic what so ever. To improve the flight I could have made my rocket shorter and thinner because the smaller the mass the greater acceleration. Doing this would improve the acceleration of the projectile in this case the rocket. Also to improve the acceleration I could add more alka-seltzer to the film case. Doing this would add a greater force to push off of which would make the rocket go higher and faster. Lastly I could have made the structure for the rocket more aerodynamic. To do this I would make the flaps triangles that do not stick out. Doing that will let there be less air resistance pressing down on the rocket, because that will make the rocket have a sporadic flight. The head of the rocket could have been tighter and skinnier as well which would have done the same thing as the flaps regarding air resistance.

2. Discuss each of Newton's three Laws of Motion as they apply to the launch, flight, and landing of your rocket. Write one paragraph per law, in order from the first law to the third law. In your paragraph on the 2nd Law, be sure to discuss at least two

Newtons First Law states that objects at rest will stay at rest and objects in motion will stay in motion in a straight line unless acted upon by an unbalanced force. In this experiment the rocket would not have moved unless there was not an outside force. The outside force was alma-seltzer and water mixed together.

Newtons Second Law states that force is equal to mass times acceleration. In other words acceleration is equal to force divided by mass. The greater the acceleration, the smaller the mass, and the greater the mass, the smaller acceleration. This related to the lab because if the rocket made was smaller than it's acceleration would be greater versus a bigger massed rocket

Newtons Third Law states that for every action there is always an opposite and equal reaction. When the alka-seltzer water solution exploded, the force was going downwards to the floor. With an opposite but equal reaction the rocket shot upwards. The force is equal even if it does not seem like it, but going in different directions.

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