What kind of crate to make for egg drop experiment?
The crate must be less than 20 centimeters on any side (length, width, and height) and have a mass of less than 500 grams without the egg.
Metal, wood, and glass materials (including fiberglass) aren’t allowed.
Parachutes and propellers aren’t allowed.
We’re not supposed to put the eggs in the crate, the teacher will be bringing eggs on the drop day.
We’re dropping it off from the roof of our school which is a 3 story building.
Use all of the space allotted to you. You need to make the deceleration on the egg as gradual as possible requiring the largest distance.
You will not be able to anticipate the impact angle so you will want it to be symmetrical.(note fins could be used to align, but at the expense of useful area; not recommended)
Fluid is an excellent way to do it, but too heavy for your application. Id recommend putting the egg inside of upholstery foam(the stuff that’s in your couch). I would put it in the middle. The foam is very shock absorbent, but it must be pre-stressed to absorb a 3 story impact. To do this simply start with a block of foam larger than the alloted dimentions and constrain it smaller with tape, string, cardboard box, etc.
It will take a few attempts to determine how much foam will need to be used.
Best of luck to you!
PS. For some reason I am profoundly bothered by teachers who think that the world should be padded at the expense of education.
You need to find some way to absorb the force that has built up during the three story drop. (Please forgive my poor use of words, but I am a math teacher, not a physics teacher.) I have seen ‘cages’ built to hold the egg which are made out of soda straws (plastic), and the straws are woven (using yarn strung through the middle) to create a larger flexible cage that takes the brunt of the force while the egg ‘cage’ sits in the middle of the larger straw cage and doesn’t feel the impact.
Use an automobile as an example. It forms a cage around us drivers so that if a crash ever occurred, it would bear the brunt of the force and leave us fragile ‘eggs’ safe within the car’s ‘cage’.
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The best thing to use would be some kind of fluid. Power steering fluid from a car would be excellent. Find or make yourself a good box, then fill it with the fluid.
Fluids are the best stabilizers and absorbers of force. A special nutrient rich fluid even protects your brain inside your head!
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An egg crate!
Tell your teacher that he/she is endangering your lives by bringing you to the roof. Are they thinking?
-Teacher 33 years.
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Use all of the space allotted to you. You need to make the deceleration on the egg as gradual as possible requiring the largest distance.
You will not be able to anticipate the impact angle so you will want it to be symmetrical.(note fins could be used to align, but at the expense of useful area; not recommended)
Fluid is an excellent way to do it, but too heavy for your application. Id recommend putting the egg inside of upholstery foam(the stuff that’s in your couch). I would put it in the middle. The foam is very shock absorbent, but it must be pre-stressed to absorb a 3 story impact. To do this simply start with a block of foam larger than the alloted dimentions and constrain it smaller with tape, string, cardboard box, etc.
It will take a few attempts to determine how much foam will need to be used.
Best of luck to you!
PS. For some reason I am profoundly bothered by teachers who think that the world should be padded at the expense of education.
References :
http://hyperphysics.info/
put some sort of jelly (vaseline, etc) into a balloon. put the egg in the balloon.
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