7BSp2009Q4Rubric - Physics 7B Quiz 4 Rubric 1) Q (25% of...

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Physics 7B Quiz 4 Rubric 1) (25% of quiz score) Q 10.0 Explains that since the cars stick together, kinetic energy is not conserved and the collision is inelastic. R 9.0 Simply states that the cars stick together so the collision is inelastic. U 7.5 States that the collision is elastic because kinetic energy was conserved. W 3.0 Answers either elastic or inelastic with wrong physical reason or almost no explanation. Z 0.0 Blank or effectively blank (may have answered the question with no explanation at all). 2) (40% of quiz score) Q 10.0 Drew chart that looked basically like chart shown to the right. R 9.5 Everything good except minor vector addition mistake in Δ p for the individual cars. S 9.0 Everything good except minor mistakes either in p i OR Δ p OR p f for the individual cars (resulting from at least one physics mistake). T 8.5 Everything good except minor mistakes either in p i , Δ p , AND/OR p f for the individual cars (resulting from at least one physics mistake AND at least one vector addition mistake). U
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