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This is a logic puzzle which requires students to use their understanding of the algebra involved in Newton's 2nd Law of Motion (F = ma) to solve correctly. The masses and acceleration are given but not attributed to a particular student, and the instructions are to help the students figure out the masses of each of the carts, the acceleration of each of the carts and the force applied to each of the carts. There are five sets of each piece (Force, mass, acceleration) of data. I use this as a fun wrap-up of Newton's 2nd Law of Motion with my 9th grade physics and 9th grade physical science classes.
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FEEDBACK
harkerj
I don't think the logic puzzle can work.
The masses have to be (top to bottom): 9, 4.5, 6, 10, 12 based on the 1st three clues. This means clue 7 can't be fulfilled; also, clue 4 and 9 can't be simultaneously true.
I stopped there but I would imagine there are other contradictions as well.
A great idea and thanks so much for sharing for free, but it needs some work!
The masses have to be (top to bottom): 9, 4.5, 6, 10, 12 based on the 1st three clues. This means clue 7 can't be fulfilled; also, clue 4 and 9 can't be simultaneously true.
I stopped there but I would imagine there are other contradictions as well.
A great idea and thanks so much for sharing for free, but it needs some work!
November 8, 2012 
The Science Vault (TpT Seller)
The masses top to bottom are 6, 4.5, 12, 9, & 10. This fulfills the first three clues. If the masses were as stated above (9, 4.5, 6, 10, & 12), then the first clue (Karla's cart's mass is 50% less than Daneisha's) couldn't be true..
I appreciate the feedback, please let me know if you see other things that seem at odds with the clues. :)
I appreciate the feedback, please let me know if you see other things that seem at odds with the clues. :)
November 8, 2012
Victoria Leon (TpT Seller)
I am sure your students enjoy using what they have learned to solve the logic puzzle. Your "Newton's 2nd Law of Motion, F=ma, Logic Puzzle" was the featured "Free Lesson of the Day" on "The Best of Teachers Pay Teachers."
Hope you are having a great school year,
Vicky
http://thebestofteacherspayteachers.blogspot.com/2011/11/free-science-lesson-newtons-2nd-law-of.html
Hope you are having a great school year,
Vicky
http://thebestofteacherspayteachers.blogspot.com/2011/11/free-science-lesson-newtons-2nd-law-of.html
November 24, 2011
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QUESTIONS AND ANSWERS:
harkerj
Not sure how to continue this conversation in the comments section, so I'll do it here.
Clue #1 On the paper I have states: "Karla's cart has 50% more mass than Daneisha's."
Therefore, it does not work out the way your provided answer key states.
Clue #1 On the paper I have states: "Karla's cart has 50% more mass than Daneisha's."
Therefore, it does not work out the way your provided answer key states.
November 8, 2012
The Science Vault (TpT Seller)
Oh my gosh! I was looking at clue #1 on the answer key and it says the exact opposite! Will fix and replace in the next 30 minutes! Thank you so much for bringing this to my attention.
~Jan
~Jan
November 8, 2012
shardesty01
Please let me know when you can, I have been working on this during planning and still not really making progress :(
August 16, 2012
The Science Vault (TpT Seller)
In my files, there was a second page and a key. I tried downloaded the file from here (in case I had uploaded the wrong file), and it also contained a second page with answers.
I'm sorry you didn't get the key: weird - must have been a truncated file?
At any rate, here are the answers:
mass (kg) acceleration (m/s2) Force (N)
Karla 6 2 12
Matthew 4.5 4 18
Daneisha 12 2.5 30
Vince 9 3 27
Sergio 10 5 50
I'm sorry you didn't get the key: weird - must have been a truncated file?
At any rate, here are the answers:
mass (kg) acceleration (m/s2) Force (N)
Karla 6 2 12
Matthew 4.5 4 18
Daneisha 12 2.5 30
Vince 9 3 27
Sergio 10 5 50
August 16, 2012
shardesty01
I am working this with my 8th grade Science class and am honestly having trouble with it. Do you by any chance have an answer key in electronic form?
Thank you!
Thank you!
August 16, 2012
The Science Vault (TpT Seller)
:) Not sure, but give me a a couple of hours and I'll see if I can find/make one.Logic puzzles should always come with a key :)
August 16, 2012
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