Is this a horribly ambiguous A Level Physics question?

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SUMMARY

The discussion centers on the ambiguity in OCR A Level Physics exam questions and their marking schemes, particularly regarding the interpretation of terms like "rate" and "acceleration." The tutor expresses frustration over the strictness of the marking criteria, which penalizes correct physics terminology such as "deceleration" and "rate of acceleration." Participants agree that the language used in standardized tests can lead to confusion and misinterpretation, potentially disadvantaging students who understand the underlying physics concepts but struggle with the wording of the questions.

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  • #61
From the OP:
ChrisXenon said:
For example they maintain that the word "rate" implies an increasing quantity, whereas I believe that "rate of pay" simply means how much you get paid. They say that "acceleration" will not do when a body is decelerating whereas I think that "deceleration" is an acceleration with a negative value and that all decelerations are accelerations.
As used in mathematics and physics textbooks, "rate" is a ratio that implies a change in two quantities. A decent mathematics or physics textbook would never use the phrase "rate of pay" unless the problem involved salaries that were increasing or decreasing over time.

With regard to acceleration/deceleration, if an object's velocity is decreasing and the available options describing the situation were these two choices :
a) the object is accelerating,
b) object is decelerating,
the first choice would be wrong.
 
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  • #62
We're now at 62 posts for this thread. Seems like a good place to end it.
Thread closed.

If someone has some information that hasn't already been discussed, contact me or another mentor, and we'll consider reopening the thread.
 
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