### Overview

Construct a model that helps reduce the momentum on an object or objects in a collision.

### Objectives and Goals

- Carry out an investigation showing that the more time in which a collision occurs will decrease the force acting on an object.
- Design constraints that minimize (reduce) the force on an object during a collision.

### Procedure

1. Now it’s time to design your own collision model. (Inanimate objects only!)
2. Research different types of protective equipment used to reduce the impact of a collision.
3. Create three collisions, improving your safety precautions with each trial.

- In the first trial, determine the effects of the collision on an object when no safety precautions are taken.
- In the second trial, add a safety precaution of your choice, and determine what impact it has on the momentum of an object.
- In the third trial, improve your safety precautions and determine how they decrease the momentum of an object during the impact.

Use the Safety First Engineering Instructions (Links to an external site.) to help guide your experiment. Make sure to check the rubric (Links to an external site.) at the bottom of the page before designing and again before submission.

This video may help provide you with some inspiration: Egg Drop Project Ideas

Presentation Rubric
Criteria | Ratings
Description of Criterion | Exceeds | Meets | Approaching | Needs Improvement | No Marks
Introduction & Summary | Introduction contains all aspects listed. All materials used are listed. All steps are easy to follow and in a logical sequence of ideas. A clear goal is stated. | Introduction contains all aspects listed. All materials used are listed. All steps are in order. A goal is stated. | All aspects are represented but not in an organized manner. Goal is present. | At least two aspects are represented. | Incomplete/ Missing
Visual Representation | Presentation has appropriate font size, text to background is easily visible (light text/dark background & no busy backgrounds), and images are included. | Presentation has appropriate font size, text is visible, and images are included. | Presentation text is visible, and images are included. | Presentation text lacks visibility, and little to no images are included. | Incomplete/ Missing
Experimental Design | Design shows the learner has analyzed the problem and has independently designed and conducted a thoughtful experiment. | Design shows learner grasps the basic idea of the scientific process by conducting an experiment that controlled obvious variables. | Design shows that the learner grasps the basic idea of the scientific process but needs some help in controlling obvious variables. | Design shows learners can conduct an experiment when given considerable help by the instructor. | Incomplete/ Missing
Data Analysis & Summary | Data was collected and recorded in an orderly manner that accurately reflects the results of the experiment. | Data was recorded in a manner that probably represents the results of the experiment. | Data was recorded in a disorganized manner or only with instructor assistance. | Data was recorded in an incomplete, haphazard manner or only after considerable teacher assistance. | Incomplete/ Missing
Reference: Wiggins, G. (1998). Educative Assessment. San Francisco, CA: Jossey-Bass Publishers.