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Objective:  To analyze a physical situation in order to determine the relative strength of the normal force experienced by an object. 
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Normal Force Card Sort
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Version 2.2
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Pick from among the three levels of difficulty -  Apprentice Level, Master Level, and Wizard Level.
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Apprentice Level 6 Questions Simplest situations
Master Level 6 Questions More complex situations
Wizard Level 12 Questions All 12 situations from Apprentice and Master Levels
Congratulations! You have done it! You have accurately sorted all cards. You have completed the Wizard level.
Congratulations! You have done it! You have accurately sorted all the cards. You have completed the Apprentice level.
Congratulations! You have done it! You have accurately sorted all cards. You have completed the Master level.
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O’ Drats! You have not accurately sorted all the cards into the correct categories. You will need to re-check, make changes, and Check Answers again. Here’s your current progress:
Yes, Unsort
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Category D Not enough info to conclude
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If you Unsort the Cards, then all the cards will lose their category sortings and you will have to start over. Are you sure you want to Unsort the Cards?
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Category A Fnorm = Weight
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Directions: Tap on a Category Box to add or remove this situation to/from a category OR Navigate to a different Situation.
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Category B Fnorm > Weight
Predict how the scale reading (or normal force, Fnorm) compares to the weight of the object.
No, Keep Sortings
Category C Fnorm < Weight
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AA
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