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iRubric: Conservation of Momentum rubric

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Conservation of Momentum Rubric Code: KX2WA79 By oneymatt Ready to use Public Rubric Subject: Physics Type: Assessment Grade Levels: 9-12

Conservation of Momentum
	Poor 0 pts	Fair 3 pts	Good 5 pts
Basketball on Backboard	Poor A response gets no credit if it provides an incorrect response.	Fair A response gets 3 points if it demonstrates an ability to understand that the momentum of the basketball is not conserved, but does not give an explanation.	Good A response gets 5 points if it demonstrates an ability to understand that the momentum of the basketball is not conserved and explains that it is due to the fact that the basketball is not 100% elastic.
Vehicle Collisions	Poor A response gets no credit if it provides an incorrect response.	Fair A response gets 3 points if it demonstrates an ability to understand that the momentum of the vehicles is conserved, but does not give an explanation.	Good A response gets 5 points if it demonstrates an ability to understand that the momentum of the vehicles is conserved and describes the relationship between the mass and velocity of the vehicles before and after the collisions.
Newton's Cradle	Poor A response gets no credit if it provides an incorrect response.	Fair A response gets 3 points if it demonstrates an ability to understand that the momentum of the vehicles is conserved, but does not give an explanation.	Good A response gets 5 points if it demonstrates an ability to understand that the momentum of the vehicles is conserved and explains the relationship between the mass of the balls that collide with the cradle and the mass of the balls that are pushed upward.
Falling Object	Poor A response gets no credit if it provides an incorrect response.	Fair A response gets 3 points if it demonstrates an ability to understand that the momentum of the object is not conserved, but does not give an explanation.	Good A response gets 5 points if it demonstrates an ability to understand that the momentum of the object is not not conserved and explains how the velocity of the object increases due to the force of gravity.