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About This Drill
ACT Science — Research Summaries — Drill 5 is a Science practice drill covering Research Summaries. It contains 5 original questions created by Brian Stewart, a Barron's test prep author with over 20 years of tutoring experience.
ACT Research Summaries questions require you to interpret experimental data and understand how variables interact. This drill presents three experiments on standing waves in a vibrating string, varying string length, tension, and harmonic number to investigate frequency, wave speed, and wavelength.
Questions in This Drill
- According to Table 1, what was the fundamental frequency of the string when its length was 0.40 m?
- Based on Table 1, which of the following best describes the relationship between string length and fundamental frequency?
- According to Table 2, when tension increased from 1.0 N to 4.0 N, wave speed:
- Based on Table 1, if the string length were changed from 0.50 m to 0.25 m while tension remained at 4.0 N, what would happen to the fundamental frequency?
- According to Table 3, what is the wavelength of the 4th harmonic, and how does it compare to the string length of 0.50 m?