Force can be calculated using Newton’s 2nd Law, force = mass x acceleration or F=ma. This means if there is a resultant force, then the velocity will change. In this assignment, students will draw force diagrams of a car moving in three different ways. The car is traveling at a constant speed (balanced), accelerating, and decelerating. Students should be reminded to be mindful about the direction and the length of the arrows, and use consistent color coding and labeling throughout their diagrams.
In order to differentiate this to challenge your more advanced students, introduce a scenario where the car is on a slope. This way, students won't just be looking at forces that are either vertical or horizontal.
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Demonstrate your understanding of force and the effect it has on motion by drawing force diagrams. Remember forces have both a size and direction. This means you need to be careful about the direction and length of the arrows.
(You can also create your own on Quick Rubric.)
| Proficient |
| Emerging |
| Beginning |
Force Arrows and Labels
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Evidence of Effort
Work is well written and carefully thought out.
Work shows some evidence of effort.
Work shows little evidence of any effort.