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

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

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

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

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

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

What to compare? Time (with a timer) Speed

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

Experiment 1

1st Experiment results: Square Rectangle 5.05 4.78 2. 3.94 2. 3.89 3. 4.00 4.00 Average time of square Average time of rectangle 12.99/3 = 4.33 12.26/3 = 4.08

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

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

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

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

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

Objective: Length of string Can influence Time of Landing Distances

What to compare? Time (with a timer) Speed

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

Experiment 2

2nd Experiment results: 20 cm 30 cm 6.49 6.93 2. 6.19 2. 5.33 3. 5.86 3. 5.24 Average time to 20 cm Average time 30 cm 18.54/3 = 6.18 17.5/3 = 5.83

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

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

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

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

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

Objective: MATERIAL OF PARACHUTE Can influence Time of Landing Distance

What to compare? Time (with a timer) Speed

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

Experiment 3

3rd experiment results: A4 paper ½ A4 paper 3.69 2.94 2. 3.56 2. 4.28 3. 4.10 3. 3.16 Average time of A4 paper Average time of ½ A4 paper 11.35/3 = 3.78 10.38/3 = 3.46

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

Video: https://youtu.be/0l-grG7bNco

“the perfect parachute”

Favorable variables: square shaped 20cm string x4 Material PLASTIC

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

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

Thank you for listening!!! 