AccelePrep for the ACT Test 2nd Edition Student Text

210 • S URGE TO S UCCESS ! S CIENCE T EST P REP

1. In Figure 1, a positive slope for acceleration data indicates that the mass-spring system is: A. moving downward. B. moving upward. C. slowing down. D. speeding up. 2. The period of the mass-spring system is approximately: Ǥ ͲǤ͵͹ͷ •‡…‘†Ǥ Ǥ ͲǤ͹ͷ •‡…‘†Ǥ H. 1 second. J. Cannot be determined from the given information 3. Negative values of both displacement and velocity indicate that the mass-spring system is: A. below the resting position and moving upward. B. moving downward, but speeding up. C. below the resting position and moving downward. D. approaching the resting position and moving upward.

4. Which of the following statements about the relationship between displacement and velocity for a mass-spring system in periodic motion is best supported by the experimental results? F. The velocity magnitude of a mass-spring system decreases as the system moves from maximum positive displacement to its resting position. G. The velocity magnitude of a mass-spring system is least as the system passes through its resting position. H. The velocity magnitude of a mass- spring system remains constant as the system moves from maximum negative displacement to its resting position. J. The velocity magnitude of a mass-spring system is greatest as the system passes through its resting position. 5. The mass-spring system is released from 0.7 meters below its resting position and the experiment repeated. Which of the following results is most likely to occur? A. The period of the mass-spring system remains unchanged. B. The period of the mass-spring system doubles. C. The amplitude of the mass-spring system remains unchanged. D. The maximum velocity of the mass-spring system decreases by half.

1. First, get an overview of the represented data, then read the item(s) carefully and return to the tables, charts, or graphs to ϐ‹† –Š‡ ‡…‡••ƒ”› ‹ˆ‘”ƒ–‹‘Ǥ 2. Underline or circle key words and points of information. This strategy makes referencing them easier and quicker when actually answering the items. ͵Ǥ If data are represented in the form of a graph or chart, then pay particular attention to the scale, the units of measure, the legend, and any noted information. 4. Pay attention to the labeled axes when reviewing data presented in graphs. Determine the nature of the presented information and the units of measurement used. ͷǤ Pay attention to data trends; identify the relationships as direct or inverse. SUM IT UP – DECODE THE DATA