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Bell Work- Problem  What affects the rate of descent for a paper helicopter if your only materials are one index card and one or more paperclips?

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Presentation on theme: "Bell Work- Problem  What affects the rate of descent for a paper helicopter if your only materials are one index card and one or more paperclips?"— Presentation transcript:

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2 Bell Work- Problem  What affects the rate of descent for a paper helicopter if your only materials are one index card and one or more paperclips?

3 Hypothesis  If ________ (number ) paper clips are added to the helicopter then the helicopter will land _____.

4 Materials  Paper clips  Index card  Scissors  Stop watch  Meter stick

5 Independent Variable  Helicopter Design

6 Dependent Variable  Average time for helicopter to land

7 Controls  Helicopter design template  Stop watch  Meter stick  Index card  Scissors

8 Procedures  1. Use one 3X5 index card  2.Use diagram to draw template of helicopter  3.Cut along the solid lines  4.Fold flap A forward and flap B to the back  5.Fold flap C forward and flap D to the back.  6.Release the helicopter 1 meter from the ground and time how long it will take to land. Do this a total of 5 times.

9 Procedures  7.Add 1 paper clip to the bottom of the helicopter  8. Release and time a total of 5 times.  9. Add 2 paper clips to the bottom of the helicopter.  10. Release and time a total of 5 times.  11. Average the trials for 1, 2, and 3.  12. Graph your results

10 Data Table Helicopter Trials Helicopter TrialsHelicopter 1Helicopter 2Helicopter 3 Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Average

11 What Graph do you use?  Bar Graph

12 Conclusion  My hypothesis is correct or not___  My independent variable is__________  My dependent variable is ___________  My results from the experiment showed Helicopter 1 _____ average Helicopter 2 _____ average Helicopter 3 _____ average  What did you learn from the experiment?


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