Today we worked on test corrections for the 1 dimensional kinematics test. You can earn back 1/2 of the points that you missed by doing test corrections. Your corrections must have the following:
- be done on a separate piece of paper (neatly)
- analyze your original solution and EXPLAIN what you did wrong IN TERMS OF PHYSICS (see example below)
- rework the problem correctly
Staple your corrections to the FRONT of your original test and turn in NO LATER THAN the beginning of the period on Monday 10/16. NO LATE WORK WILL BE ACCEPTED!
Test Corrections (thanks to tregphysics for the example)
Test corrections are more than simply marking the right answer on your paper. You must analyze your solution and write about what you did wrong and how you can fix it while focusing your discussion on the physics of the problem.
Here's an example of a poor error analysis:
I drew the line on my velocity graph above zero, and I should have drawn it below.
The analysis above doesn't actually discuss any physics. It simply states where a line should be drawn. That's not physics! Here's a more thorough analysis...
I sketched a positive, constant velocity by drawing the line on my velocity graph above zero. I drew that because I thought that the ball wasn't accelerating. However, the ball is rolling down a ramp while moving to the left. This means that the ball is accelerating and the velocity is changing, not constant, and increasing to the left. Since it's increasing to the left, the line should be drawn as getting more and more negative.
The above analysis references both how the line should be drawn on the graph and it discusses the physics of the situation. If you're not sure whether or not you've done a thorough enough job, then just ask me, and I'll happily help out.
- be done on a separate piece of paper (neatly)
- analyze your original solution and EXPLAIN what you did wrong IN TERMS OF PHYSICS (see example below)
- rework the problem correctly
Staple your corrections to the FRONT of your original test and turn in NO LATER THAN the beginning of the period on Monday 10/16. NO LATE WORK WILL BE ACCEPTED!
Test Corrections (thanks to tregphysics for the example)
Test corrections are more than simply marking the right answer on your paper. You must analyze your solution and write about what you did wrong and how you can fix it while focusing your discussion on the physics of the problem.
Here's an example of a poor error analysis:
I drew the line on my velocity graph above zero, and I should have drawn it below.
The analysis above doesn't actually discuss any physics. It simply states where a line should be drawn. That's not physics! Here's a more thorough analysis...
I sketched a positive, constant velocity by drawing the line on my velocity graph above zero. I drew that because I thought that the ball wasn't accelerating. However, the ball is rolling down a ramp while moving to the left. This means that the ball is accelerating and the velocity is changing, not constant, and increasing to the left. Since it's increasing to the left, the line should be drawn as getting more and more negative.
The above analysis references both how the line should be drawn on the graph and it discusses the physics of the situation. If you're not sure whether or not you've done a thorough enough job, then just ask me, and I'll happily help out.