Tennis Ball Rocket Project Description

Tennis Ball Rocket Project

Project Description: Working in teams of two design and construct s a pressurized air based soda bottle rocket that is used to keep a tennis ball in the air for extended periods of time.


Point value: 100 pts Project category

Design constraints:

1. Only one pressurized 2 liter bottle allowed
2. No metal parts larger than 2” x 2” and or two grams total
3. No other sources of energy other than 80 psi air compressor
4. Rocket and or parachute must be free floating during the timing period
5. No kits
6. Rockets must have fins and nose cones


Grading

20 pts : Building day credits: everyone starts with 20pts total and deductions are received for lack of materials or failure to build during class time.

20 pts : two page write up of the physics principles involved in your design . Minimum of ten concepts documented

10 pts : completed launch of first prototype before deadline May 20

10 pts : completed launch of second prototype before deadline May 27 Must be significantly different than prototype 1

The following Updated Rubric is an attempt to better delineate the point values in each performance grade category. Overall, It makes it easier to be in the "A" range and raises the majority of student scores.

Updated Rocket Rubric Mr. Davison

A+ = 30 seconds and up 40 pts

A = 24-29 sec 38 pts

A- = 21-23 sec 36 pts

B+ = 18-20 sec 35 pts

B = 15-17 sec 34 pts

B- = 12-14 sec 32 pts

C+ = 11 31 pts

C = 10 30 pts

C- 8-9 28 pts

D+ = 7 27 pts

D= 6 26 pts

F = Less than 6 but launched 20 pts

F = No launch 0 pts