SAFER EggCar Design Explanation

Rules and Specifications:

1. Maximum car width: < 9 centimeters (including axles and wheels)

2. Maximum car length: < 16.5 centimeters

3. Minimum car mass without the egg: > 40 grams

4. Glue, paper, wheels, axles, and the straw-axle housing are the only construction materials allowed. The entire frame of the car must be made of paper and glue.

5. Your vehicle will be disqualified if it exceeds length and width dimensions, does not meet minimum mass requirements, or contains stickers, paint, tape, cardboard or any other non-licensed materials that contribute to the structural integrity of the vehicle.

6. Vehicle designs must allow for easy access to and removal of the egg (occupant) for inspection after the crash.

7. Vehicle designs should be able to withstand 4 trials/collisions without parts replacement or repairs.

8. There can be no physical contact between the vehicle and the designer once the vehicle has been released onto the track.

9. The track will placed at 2 different heights, one trial with 3 books under the ramp and one trial with 4 books under the ramp.

10. All vehicles must visibly display the following information on their frames:

a. vehicle name

b. builder’s name

c. vehicle length in centimeters

d. vehicle mass in grams

SAFER Egg Car Explanation Presentation:

  1. Students will create a presentation explaining the relationship between the Safer Egg Car and Newton’s Laws of Motion on Google Drive using Google Presentation. The final Google Presentation will be shared with me (). Or upload it to our Google Classroom.
  2. The Google Presentation will be graded based on the depth of the connections made between the groups Safer Egg Car trials and the laws of motion learned in class.

Due Dates:

The SAFER Egg Car is due on Friday, October 3. (We will test them in class.)

The SAFER Egg Car Presentation is due on Monday, October 6 at midnight.

SAFER Egg Car Design Project Rubric

PART I: NEWTON’S LAWS OF MOTION PRESENTATION

Newton’s 1st Law:

Define Newton’s First Law 2 points______

10
Explanation includes why the car was at rest and the unbalanced force that caused the motion. AND it includes why the car was in motion and the unbalanced force that ended the motion. Using great detail. (include contact force, gravity, AND friction) / 8
Explanation includes why the car was at rest and the unbalanced force that caused the motion. AND it includes why the car was in motion and the unbalanced force that ended the motion. Using limited detail. (includes contact force, gravity, AND/OR friction) / 6
Explanation includes why the car was at rest and the unbalanced force that caused the motion. OR it includes why the car was in motion and the unbalanced force that ended the motion. Using great detail. (includes contact force, gravity, OR friction) / 4
Explanation includes why the car was at rest OR in motion and the cause for that rest OR motion with limited detail. (includes contact force, gravity, OR friction) / 2
Explanation includes why the car was at rest OR in motion and the cause for that motion OR rest with no detail.

Written Explanation 10 points ______

Newton’s 2nd Law:

Define Newton’s Second Law 2 points______

10
Explanation includes how the design choices AND ramp heights altered the acceleration of the car. Using great detail. (include mass, force, AND acceleration) / 8
Explanation includes how the design choices AND ramp heights altered the acceleration of the car. Using limited detail. (include mass, force, AND/ OR acceleration) / 6
Explanation includes how the design choices OR ramp heights altered the acceleration of the car. Using great detail. (include mass, force, OR acceleration) / 4
Explanation includes how the design choices OR ramp heights altered the acceleration of the car. Using limited detail. (includes mass, force, OR friction) / 2
Explanation includes how the design choices OR ramp heights altered the acceleration of the car. Using no detail.

Written Explanation 10 points ______

Newton’s 3rd Law:

Define Newton’s Third Law 2 points______

5
Explanation includes 3 examples of the action and reaction law that affects the car whether in motion or not. (contact force, friction, and gravity) / 3
Explanation includes 2 examples of the action and reaction law that affects the car whether in motion or not. (contact force friction, or gravity) / 1
Explanation includes 1 example of the action and reaction law that affects the car whether in motion or not. (Contact force, friction, or gravity)

Written Explanation 5 points ______

TOTAL SCORE: ______/ 31 points ______%

PART II - RACE DAY

SAFER Egg Car possesses all required parts10 points______

Four successful trials of the SAFER Egg Car20 points______

  • Trials must meet all rules for race day in order to earn credit.

TOTAL SCORE: ______/ 30 points______%