Egg Drop

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1 collaborator

Alice Johnson (Author)

WHAT IS IT?

This model simulates an egg being dropped from a building.

HOW IT WORKS

The egg falls according to the law of gravity, but air resistance and friction are not taken into account.

HOW TO USE IT

Use the slider to choose the height of the building, click setup to get the egg in place. Click "Drop" to make the egg fall all at once. Click "Analyze Seconds" to make the egg fall one second per click.

THINGS TO NOTICE

The egg falls more slowly at first, and gains speed.

THINGS TO TRY

Move the slider to change the height of the building. Click "Analyze Seconds" to move the egg one second at a time.

EXTENDING THE MODEL

Air resistance and friction could be added to the model.

NETLOGO FEATURES

The equation to find the height of the egg is written in a recursive format because it is based on the height preceding it.

CREDITS AND REFERENCES

Created by Alice Johnson

Comments and Questions

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Click to Run Model

turtles-own [time dist]

to setup
  clear-all
  reset-ticks
  ask patches [set pcolor blue]
  ask patches with [pycor < 15][set pcolor green]
  ask patches with [pycor < drop_height and pxcor < 100]
  [set pcolor black]
  create-turtles 1
  [set shape "egg"
    set size 40
    set color white
    setxy 115 drop_height
    set heading 0]
end 

to go; for "drop"
  tick
  ask turtles [set time time + 1]
  ask turtles [forward dist
    set dist (time * 2 - 1) * -16]
  wait 0.1
  ask turtles [if pcolor = green [set shape "petals" set color yellow stop]]
  show [time - 1] of turtle 0
  show [ycor] of turtle 0
  If any? turtles with [pcolor = green] [stop]
end 

to steps; to control the drop second by second
   tick
  ask turtles [set time time + 1]
  ask turtles [forward dist
    set dist (time * 2 - 1) * -16]
  ask turtles [if pcolor = green [set shape "petals" set color yellow]]
  show [time - 1] of turtle 0
  show [ycor] of turtle 0
  If any? turtles with [pcolor = green] [stop]
end

There is only one version of this model, created almost 6 years ago by Alice Johnson.

Attached files

File	Type	Description	Last updated
egg drop preview.png	png	Preview	almost 6 years ago, by Alice Johnson	Download

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