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Rocket Nose Cone Science (page 2)

based on 44 ratings
Author: Hunter J.

Terms and Concepts for Background Research

  • Drag
  • Air Resistance
  • Thrust
  • Weight
  • Lift
  • Pressure
  • Air Flow
  • Aerodynamic Forces
  • Center of Gravity
  • Center of Pressure

Research Question

What is the best type of nose cone to use on a water bottle rocket?

Experimental Procedure

  1. Assemble the rocket launcher according to the diagram. (glue all the joints together with pvc cement)
  2. Attach nose cones to 3 of the 4 bottles using hot glue.
  3. Make fins for the rockets by folding a 5” by 8” index card in half and then cutting it into the shape of a triangle.
  4. Repeat step 3 fifteen more times. (you will make a total of 16 fins)
  5.  Attach 4 fins evenly spaced to each rocket using scotch tape.
  6.  Fill 1 rocket with exactly half a liter of water.
  7.  Place the rocket on the launcher and using the bike pump, pump 20 psi of air.
  8.  Have someone stand by you with a stopwatch.
  9.  Release rocket by pulling string.
  10.  Record the time it takes the rocket to reach the ground.
  11.  Do steps 6-10 for each of the 4 rockets 30 times.
  12.  Record all the times in your composition book.

Results

Trial
Control
Cone
Hemisphere
Parabola
1
3.1
3.2
2.9
3
2
2.9
3
3.3
3.2
3
3.1
2.6
2.9
3.1
4
3.2
2.9
3.1
3.5
5
3.2
3.3
3.3
3.5
6
3.1
3.3
3
3.6
7
2.9
3.2
3.4
4.5
8
3
3.3
3
3.1
9
3.1
3.1
3.4
3.3
10
3.2
4
3.4
3.5
11
3.3
3.3
3.1
3.3
12
2.7
3.4
3.4
3.5
13
2.7
3.1
3.5
3.4
14
3
3.5
3.5
3.7
15
3.3
3.4
3.2
3.6
16
2.6
3.5
3.4
3.5
17
2.9
3.5
3.2
3.1
18
3.4
3.5
3.6
3.3
19
2.9
3.2
3
3.8
20
2.5
3.4
3
3.6
21
2.9
3.1
2.9
3.8
22
3.1
3.5
3.1
3.4
23
3.2
3
3.1
4
24
2.9
3.5
3.2
3.4
25
2.9
3.2
3.4
3.6
26
3.2
3.8
3.2
3.8
27
3
3
3.2
3.7
28
2.8
3.1
3.3
3.4
29
3.1
3.3
3.2
3.5
30
3.1
3.4
2.9
3.4
AVG
3.01
3.29
3.20
3.50

 
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