CSCOPE is advertised as having rigor. If rigor means to be challenged in a way to encourage kids to “think outside the box,” then I say that CSCOPE Science is not rigorous.
Maybe CSCOPE is counting confusing and challenges that have no answer as rigorous.
I added the red arrows and relationship between the action and reaction pair forces for the CSCOPE question. This was an effort to figure out what the question was asking. I even contacted physics experts to help. The conclusion of this research is that CSCOPE either has science writers who have a limited understanding of science or CSCOPE is purposely including problems that are meant to be confusing and have no answer.
The situation described in this CSCOPE assessment about Newton’s Laws of Motion is very confusing. Is the dog actually dragging the boy–boy’s body is on the ground and being pulled by the dog?
Since the answers are not complete sentences, technically one cannot chose any as the correct answer. But, CSCOPE says that this is the answer:
H. The dog applied the greatest force in pulling—–Pulling What?
Is friction negated? Even if you assume this to be so, there still is no answer.
The question does not state whether the dog and the boy are accelerating. After researching this, I say there are no correct answers. According to Newton’s third law of motion, the force of the dog on the boy is equal to the force of the boy on the dog.
It is not a good Newton’s 3rd Law question. In fact, it is not a good question at all.
Is this another example of how CSCOPE has been designed to purposely confuse and not teach correct science facts?