RESOURCESEgg Crash! Designing a Collision Safety Device Hands-on Inquiry Activity
"It's Basic Physics - Impulse segment" Guiding Question
- Download Teacher Lesson Plan and Student Activity sheet for "Egg Crash! Designing a Collision Safety Device."
- Watch Teacher Tips video for the activity and review procedure and safety notes in the Teacher Lesson Plan.
- Gather materials. For each group of 2-3 students:
- Copier paper, (10 sheets of 8.5" x 11" paper)
- Masking tape (1 meter)
- Scissors (1-2 pairs)
- Egg (1) raw, grade A, large egg
- "Egg Crash!" Student Activity Sheet (1 per student)
- For the entire class gather:
- Extra eggs for accidental breakage
- Newspaper, (15-20 sheets)
- Meter sticks (2 - 3) or Measuring tape on a reel (2-3 meters)
- Ladder, 6-foot (2 m)
- Hard-surfaced floor, walkway, or playing surface (e.g., basketball court)
- State Key Questions from "Egg Crash! Designing a Collision Safety Device" activity:
- How do people survive major vehicle collisions?
- How do the laws and principles of physics demonstrate the effectiveness of a vehicle's seat belts, airbags, and crumple zones?
- Show Introduction video for "Egg Crash! Designing a Collision Safety Device."
- Distribute "Egg Crash! Designing a Collision Safety Device" Student Activity sheets and materials.
- Review the rules and procedure with students.
- Conduct activity following tips in the Teacher Lesson Plan.
- Have groups share and compare results. Ask students to work collaboratively with group members to answer Analysis Questions.
- Show Conclusion video and conduct a whole-class discussion of responses to Analysis Questions (answers in Teacher Lesson Plan).
How can we reduce the forces experienced during a collision?
Safety belts and airbags are examples of two major safety features that apply the laws of physics to reduce the effects of crash impulses in collisions. Both features help lengthen the amount of impact time between when the stopping force is first applied to a vehicle and when the occupants inside the car actually come to a stop after colliding with the steering wheel, dashboard or other vehicle structures. By lengthening the impact time, the impact force of the impulse is "spread out" thereby reducing the impact force applied on the occupants. Remember, impulse is the product of the impact force and impact time.
Note: Lessons may be downloaded as two separate Teacher Activity Guides: