Determination for the modal age level for the grades IV and VI of the difficulty of the principle: "The amount of momentum possessed by an object depends upon its weight and speed of motion.
Thesis (M.A.)--Boston University
Main Author: | Perkins, Walter S |
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Language: | en_US |
Published: |
Boston University
2014
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Online Access: | https://hdl.handle.net/2144/9419 |
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