The Official ACT Prep Guide by ACT

Author:ACT
Language: eng
Format: epub
ISBN: 9781119580706
Publisher: Wiley
Published: 2018-04-14T00:00:00+00:00

Passage IV

21. The best answer is B. Because the weight of an object is related to its mass, the door with the greatest mass is the door with the greatest weight. According to the passage, the door with the greatest weight had a weight of 76 lb and was used in Study 2. A is incorrect; the door used in Study 1 had a weight of 61 lb. B is correct; doors with weights of 51 lb, 61 lb, and 76 lb were used in Study 2. C is incorrect; the doors used in Study 3 each had a weight of 61 lb. D is incorrect; the doors tested in Study 2 had different masses.

22. The best answer is F. According to the passage, in Study 2, D was held constant, and W and S were varied. In Study 3, W was held constant, and D and S were varied. F is correct. G is incorrect; W was varied in Study 2. H is incorrect; W was varied in Study 2 only. J is incorrect; W was held constant in Study 3 only.

23. The best answer is D. According to the results of Study 2, when D = 30 in and S = 50 in, Fn,av increases as W increases. When W = 76 lb, Fn,av = 46 lb. If an additional door with W = 90 lb had been tested, Fn,av would most likely have been greater than 46 lb. A, B, and C are incorrect; Fn,av would have been greater than 45 lb. D is correct.

24. The best answer is H. Figure 1 shows that Fv,av remained constant at all values of S. Figure 1 also shows that Fh,av was greater than Fv,av for all S < 30 in, equal to Fv,av for S = 30 in, and less than Fv,av for all S > 30 in. F and G are incorrect; Fh,av was greater than Fv,av for all S < 30 in. H is correct; Fh,av was greater than Fv,av for all S < 30 in, and less than Fv,av for all S > 30 in. J is incorrect; Fh,av was less than Fv,av for all S > 30 in.

25. The best answer is B. According to Figure 2, in Study 2, the lowest Fn,av was 27 lb. According to Figure 3, in Study 3, the lowest Fn,av was 33 lb. The lowest value for Fn,av of 27 lb was measured when W = 51 lb, D = 30 in, and S = 70 in. A is incorrect; under these conditions, Fn,av = 45 lb. B is correct; under these conditions, Fn,av = 27 lb. C is incorrect; under these conditions, Fn,av = 48 lb. D is incorrect; under these conditions, Fn,av = 33 lb.

26. The best answer is J. Figure 1 shows that as S was varied, there was no change in Fv,av, while Fh,av decreased as S increased. Fv,av was independent of S.F is incorrect; this shows that Fh,av was dependent on S.G is incorrect; Fh,av did not remain constant as S increased.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.