QUESTION:
Based on the passage, the higher average speeds were probably the result of
F. Greater friction
G. Temperature variations
H. Too much sunlight
J. Statistical error
CORRECT ANSWER: [F]
EXPLANATION: Since the passage indicates that all three of the studies were, "conducted indoors in a temperature controlled room," you can eliminate answer G and H. The studies also dealt with different types of wheels, and the traction they would provide, so the most likely reason for the highest average speeds is greater friction, answer choice F.
MY QUESTION: I accept about elimination G and H. But, If higher the average speed, then the smoother the surface should be, should in'nt? (please answer this question)
2 answers
Since you didn't post all of the passage but only your interpretation I don't think I want to risk an answer; however, I think I can answer your question. I don't think the higher average speed means smoother surfaces; in fact, I think it could mean the opposite. That is the greater traction provided more work output of whatever was producing the speeds in the first place. One might think more friction would produce more heat and that would produce higher average speeds but if the room was temperature controlled how could that be a factor?
Thank you DrBob222. It makes sense to me.
1 answer