Construct a Balsa Wood Device to Protect an Egg from Drops

Click For Summary
SUMMARY

The discussion centers on constructing a balsa wood device to protect a Grade A large chicken egg from breaking during drops from heights of 0.5m, 1m, 1.5m, and 2m. Participants must use only 1/8 x 1/8 inch balsa wood strips, with a maximum device dimension of one foot. One proposed design involves a rectangular structure with a central hole for the egg, but concerns about impact momentum damaging the egg were raised. Insights from previous experiences suggest that cone-shaped structures may offer better protection than rectangular designs.

PREREQUISITES
  • Understanding of basic physics principles related to impact and momentum
  • Familiarity with balsa wood properties and construction techniques
  • Knowledge of design principles for shock absorption
  • Experience with iterative design and prototyping processes
NEXT STEPS
  • Research effective shock absorption techniques for egg drop devices
  • Explore design strategies for cone-shaped structures using balsa wood
  • Learn about the physics of momentum and its effects on fragile objects
  • Investigate successful egg drop projects from science competitions for inspiration
USEFUL FOR

Students participating in engineering challenges, educators teaching physics concepts, and hobbyists interested in structural design and material properties.

BrianTW
Messages
1
Reaction score
0

Homework Statement


Objective: To produce a balsa wood device that will hold and protect an egg from breaking when released from various heights.

RULES
1. The device must be constructed using ONLY balsa wood (1/8 x 1/8 in)
2. Individual pieces of balsa wood may be laminated together in any fashion to produce cross sectional areas larger than 1/8 x 1/8 in
3. No side of the device can be longer than one foot.
4. The egg must be able to be removed from the device.
5. An egg is considered broken if it has a visible crack or more significant damage.
6. A grade A large chicken egg must be used.

We're given 15 strips of balsa wood, 1/8 x 1/8 in and 1 meter long.
The egg will be dropped from .5 m, 1m, 1.5m, and 2m.

Homework Equations





The Attempt at a Solution


My idea was to create a small rectangular mass of wood. It would be something like 3x3 or 4x4 and 7 inches long. When stood upright, the wood would have a hole just big enough for the egg to fit in in the center of the 3x3 side. The hole would extend 4 inches downward, leaving 3 inches of solid wood between the bottom of the egg and the bottom of the device.
I'm not sure if this will work though. I'm afraid that the momentum from the impact will break the bottom of the egg.
We're only given one set of wood, so I can't build this and test it. Whatever we build on the first try is our final project. Any ideas?

Thanks
 
Physics news on Phys.org
I used to do egg drops for science olympiad with popsicle sticks, but I found that a cone structure usually worked better than the rectangular ones.
 

Similar threads

  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 2 ·
Replies
2
Views
4K
Replies
5
Views
12K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 1 ·
Replies
1
Views
6K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
1
Views
8K
Replies
2
Views
15K