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:
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?
Hypothesis If ________ (number ) paper clips are added to the helicopter then the helicopter will land _____.
Materials Paper clips Index card Scissors Stop watch Meter stick
Independent Variable Helicopter Design
Dependent Variable Average time for helicopter to land
Controls Helicopter design template Stop watch Meter stick Index card Scissors
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.
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
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?