PROJECT - THE EGG DROP DEVICE
I. PURPOSE: to design and construct a device that will protect an egg from breaking during a drop from the second story of the school building onto the ground floor, a distance of about 5.5 meters
II. MATERIALS: You may build your device using any or all of the following supplies:
Wood |
Cardboard |
Metal |
Paper |
|
Wire |
Rubber bands or other elastic material |
Plastic |
Glue |
|
Tape |
Cotton or other fiber |
Feathers |
Cloth |
Other Provisions:
· No parachute devices are allowed
· No Styrofoam, foam rubber, or packing peanuts
· No food or liquids are allowed
· No balloons, bubble wrap, or other inflatable devices may be used
· Nothing may adhere to the egg
· Maximum size of any dimension of the device is 25 cm
· Total mass of your device must not exceed 600 grams
· A hook or loop must be installed at the top of the device for launching
III. PROCEDURES:
1. Use the lab report format to make a detailed written record of your purpose (see above), the materials you use, your construction procedures, the results and observations from you trials (at least three), and your conclusion based on your trials at home.
2. Bring your device and typed lab report to class on ___________. (No handwritten labs will be accepted.) We will test the devices during class. You will add the final data for the trial at school and turn in your paper. Do not bring eggs—I will provide them.
3. This is a project, a major grade. Per school policy, 10 points will be deducted for each day late up to three days. No projects will be accepted after three days. Projects may not be remediated.
IV. DATA: (suggested data table follows)
Mass of device ______________
|
Trial |
Observations & Results |
Success (Yes/No) |
Modifications (if any) |
|
1 (at home) |
|
|
|
|
2 (at home) |
|
|
|
|
3 (at home) |
|
|
|
|
4 (at school) |
|
|
|
For the test of your device at school record the time of the drop and calculate the average velocity, the final velocity, and the acceleration of the drop.
Time |
Average velocity |
Final velocity |
Avg. acceleration |
|
|
|
|
|
V. CONCLUSION:
Write at least a five-sentence paragraph including the following elements. Evaluate your design based on your trial runs. Note any modifications you made based on these trials. Relate your device to all three of Newton’s laws of motion and other concepts we have discussed in class. Refer to the following list for topics that may relate to your project:
1. Newton’s 1st Law 6. Force
2. Newton’s 2nd Law 7. Potential & Kinetic Energy
3. Newton’s 3rd Law 8. Velocity
4. Air Resistance 9. Acceleration
5. Elasticity 10. Structural rigidity
NAME______________________________ PER._____ DATE______________
THE EGG DROP DEVICE - EVALUATION GUIDELINES
(MAJOR TEST GRADE)
DEVICE
| ACCEPTABLE MATERIALS (MAX = 20) | __________ |
| Did you only use listed materials? | |
| DESIGN (MAX = 10) | __________ |
| How much time did you put into it? | |
| Was your device creative? | |
| DIMENSIONS (MAX = 5) | __________ |
| Is your device no larger than 25 cm? | |
| Is your device’s mass less than 600 g? |
REPORT
| GRADE SHEET (MAX = 5) | __________ |
| Is the 1st page of your lab report this grade sheet? | |
| DESCRIPTION OF CONSTRUCTION (MAX = 15) | __________ |
| Did you write step-by-step procedures for how you made your device? | |
|
(In other words, if you gave your procedures to someone else, could they follow your steps and come up with the same thing?) |
|
| CONCLUSION (MAX = 20) | __________ |
| Did you write at least 5 sentences? | |
| Did you evaluate your design? | |
| Did you note any changes in your design? | |
| Did you relate Newton’s 3 Laws and other topics to your project? | |
| LAB REPORT FORMAT (MAX = 5) | __________ |
| Is your write up in the proper lab report format? |
TESTING
| SUCCESS (MAX = 5) | __________ |
| Did your egg survive? | |
| TRIALS DOCUMENTED (MAX = 10) | __________ |
| Did you include a data table with 4 trials in your write-up? | |
| CALCULATIONS (MAX = 5) | __________ |
| Did you calculate velocities and acceleration? |