THE*CRAZIES

Problem/purpose


 * Hypothesis: If we add mass to the mid-section to the gliders we predict that it will effect its flight. **

Materials:
1. straw 2. grid paper 3. tape 4. scissors 5. pencil

Procedure(detailed):

 * 1) We would get some graph paper and cut it out to 11 by 2 units for the back ring and 6 by 2 units for the front ring. Then we would get a straw 19.5 cm in length and put the tape at the edge of the paper on the tape then attach it to the bottom of the straw and do the same for the front ring. The next step is to take some tape and measure it then add it to the selected area on the glider.

Straws- 19.5 cm. Length of Back rings- 11. Width of back rings- 2. Length of front rings- 6. Width of front rings- 2. Length of tape- 2 cm. Width of tape. 0.5 cm. Distance between the Tape and the back ring- 4 cm. Length of tape-G1- 0 cm. G2-7 cm. G3-17 cm.  G4- 32 cm   G5- 35cm

List of Control Variables:
5. Each Glider was made the same.
 * 1) The same person had to throw each glider every time.
 * 2) The person throwing had to throw each glider the same way.
 * 3) You have to throw from the same place every time.
 * 4) They have to be thrown at the same speed each time

Results and Observations:
Observations Glider 1: Flies well but curves to the left a little ways. Glider 2: Doesn’t fly well due to too much weight in the back. Glider 3: Flew very well went straight and has decent lift. Glider 4: Flies in a straight line has very good lift and barely any drag. Glider 5: Curves terribly and usually hits obstacles around its area Distance. Glider 1: 625cm- 702cm-740cm Glider 2: 266cm-297cm-389cm Glider 3: 746cm-781cm-794cm Glider 4: 840cm-869cm-908cm Glider 5: 621cm-733cm-763cm

Conclusions: ( 4 questions given)
What do the results tell you? The results tell us that mass near the mid-section can influence the way the glider flies. Was your hypothesis correct? Our hypothesis was correct because all the gliders with tape for the mass and the glider without tape had all flown differently. What other observations did you make? Some observations we had made were that the lighter the mid-section was the faster it would lose altitude, the larger amount of mass in the mid-section the less altitude lost faster. How could your test be fairer? The test could be fairer by making sure all the gliders were thrown at about the same strength.

What would be your next step after completing this investigation?
We would compare our results to see if our changes that we made to the gliders made them better.