1. Group 3 Leader Tina, joban, komal, annie, Joana
My perfect parachute
Group 3 Leader Tina, joban, komal, annie, Joana

2. VARIABLES TO BE TESTED:
1. SHAPE OF PARACHUTE
2. LENGTH OF STRING
3. MATERIAL OF PARACHUTE

3. variables: Shape of the parachute Material of the parachute
Length of strings
Layers of parachute
Position of string attachment points

4. 1ST Variable to be TESTED/changed:
Shape of parachute
Rectangle (36x25cm)
Square (30x30 cm)

5. Variables to be kept constant:
Material (plastic)
Length of strings (40 cm 8 in total)
Layers of parachute (x1)
Mass of weight
String attachment points

6. objective: If the shape of PARACHUTE Can influence Time of Landing
Distance

7. What to compare?
Time (with a timer)
Speed

8. Procedures: Change the shape of the PARACHUTE
Throw parachute from 6th floor to 3rd floor podium
Conduct test (at least) 3 times

9. Experiment 1

10. 1st Experiment results:
Square
Rectangle
5.05
4.78
4.00
Average time of square
Average time of rectangle
12.99/3 = 4.33
12.26/3 = 4.08

11. Reliable experiment: Objective Quantitative (measured with numbers)
Accurate measurement

12. Our experiment Not biased Used a timer Repeated the experiment
VARIABLE TESTED [shape of parachute]

13. variables: Shape of the parachute Material of the parachute
Length of strings
Layers of parachute
Position of string attachment points

14. 2ND Variable to tested/changed:
Length of string
20cm x4
30cm x4

15. Variables to be kept constant:
Material (plastic)
Layers of parachute (x1)
Mass of weight
String attachment points

16. Objective:
Length of string
Can influence
Time of Landing
Distances

17. What to compare?
Time (with a timer)
Speed

18. Procedures: Make parachute Change the length of strings
Throw parachute from 6th floor to 3rd floor podium
Conduct test (at least) 3 times

19. Experiment 2

20. 2nd Experiment results:
20 cm
30 cm
6.49
6.93
Average time to 20 cm
Average time 30 cm
18.54/3 = 6.18
17.5/3 = 5.83

21. Reliable experiment: Objective Quantitative (measured with numbers)
Accurate measurement

22. Our experiment Not biased Used a timer Repeated the experiment
VARIABLE TESTED [length of strings]

23. variables: Shape of the parachute Material of PARACHUTE
Length of strings
Layers of parachute
Position of string attachment points

24. 3rd Variable to tested/changed:
Size OF PARACHUTE
PLASTIC TO PAPER A4
½ A4

25. Variables to be kept constant:
Layers of parachute (x1)
MATERIAL OF PARACHUTE
Mass of weight
Length/Amount of strings 20cm x4
Attachment point s of strings

26. Objective: MATERIAL OF PARACHUTE Can influence Time of Landing
Distance

27. What to compare?
Time (with a timer)
Speed

28. Procedures: Change the Size of the PARACHUTE
Throw parachute from 6th floor to 3rd floor podium
Conduct test (at least) 3 times

29. Experiment 3

30. 3rd experiment results:
A4 paper
½ A4 paper
3.69
2.94
Average time of A4 paper
Average time of ½ A4 paper
11.35/3 = 3.78
10.38/3 = 3.46

31. Our experiment Not biased Used a timer Repeated the experiment
VARIABLE TESTED [size OF PARACHUTE]

32. Video:

33. “the perfect parachute”

34. Favorable variables:
square shaped
20cm string x4
Material PLASTIC

35. Conclusion: Based on the favorable variables
These measurements/MATERIALs
Can conduct the “safest” Landing
If a person were to test it (theoretically)

36. Errors during experiments:
The strings tangle
Exact timing
Landing elsewhere
wind
Strategy of throwing
Easily damaged

37. Thank you for listening!!! 