NOTE: This section has 23 questions.
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The following section contains 23 questions.
There are several passages in this test. Each passage is followed by several questions. After reading a passage, choose the best answer to each question and fill in the corresponding oval. You may refer to the passages as often as necessary.
You are NOT permitted to use a calculator on this test.
Which of the following elements emitted X-rays that had the same maximum intensity in both minerals?
According to Figure 2 and additional information provided, what is the order of C, Ca, Mn, and Fe, from the element with the lowest relative concentration in Mineral 2 to the element with the highest relative concentration in Mineral 2?
The energy of the most intense X-rays emitted by an element is directly related to the element’s atomic number. The atomic numbers of several of the elements are shown in the table below.
If an element with an atomic number of 22 had been present in Mineral 1, the energy of the most intense X-rays emitted by this element would most likely have been:
According to Figure 1, the maximum intensity of the X-rays emitted by the Mg in Mineral 1 is less than half the maximum intensity of the X-rays emitted by which of the following other elements in Mineral 1?
Suppose that another mineral, Mineral 3, has the chemical formula MnSiO3. Based on Figures 1 and 2, X-ray spectroscopy of this mineral would produce 3 maximum intensity peaks closest to which of the following energies?
In Experiment 1, in which of the tanks was the guppy able to see the cichlid?
Experiment 1 differed from Experiment 2 in which of the following ways?
A student hypothesized that when no cues were transmitted through the barrier, the percent of observations in Region Y would be the same regardless of the number of guppies in the tank. Are the results of Experiments 1 and 2 consistent with this hypothesis?
Consider the results of Experiment 2 for the tank with the barrier through which both visual cues and chemical cues were transmitted. What is the order of the regions of the tank, from the region with the largest percent of observations to the region with the smallest percent of observations?
A student hypothesized that any guppy receiving visual cues would stay as far away from a predator as possible. Are the results of Experiment 1 consistent with this hypothesis?
The students conducting the experiments made which of the following assumptions about chemical cues?
The explanation given by which student, if any, is inconsistent with the law of conservation of mass?
Suppose that while the balloon was inflating, a probe located near the balloon had detected a significant increase in the concentration of CO2 in the air surrounding the balloon. Which of the students gave an explanation that would be supported by this finding?
As the balloon inflated, did the mass of acetic acid in the bottle increase or decrease?
When empty, a particular balloon has a mass of 2.0 g. After the balloon is completely inflated with CO2 and sealed, the mass of the inflated balloon and its contents is 3.0 g. The mass 24 hr later is still 3.0 g. These observations are most consistent with the explanation given by which, if any, student
Based on Student 3’s explanation, the mass of air that was displaced by the inflated balloon was approximately:
Suppose that the apparatus had been fitted with a rigid, airtight cap instead of the balloon, and that the baking soda had been contained in a chamber below the cap. If the baking soda in the chamber had been released by remote control into the vinegar, which of the students would have been likely to predict that the mass reading on the balance would decrease ?
Which of the students would agree that the actual mass of the apparatus decreased by more than 0.1 g during the demonstration?
Based on Table 2, which of the following graphs best represents S for H20, silicone oil, paper, and SrTiO3 ?
For many substances, κ depends on temperature. The table below gives κ for H20 at several temperatures.
The κ for H20 given in Table 1 was most likely measured at a temperature closest to which of the following?
Based on Table 1, the dielectric that fills the PPC shown in Figure 1 is most likely which material?
Based on Table 2, when exposed to an electric field of 3.00 kV/mm, which of the gases listed below remain(s) an insulator?
I. Oxygen
II. Nitrogen
III. Air
Lightning strikes can occur when air between the ground and the base of a storm cloud is exposed to an electric field stronger than S for air. Suppose a certain storm cloud’s base is 300 m above the ground. Based on Table 2, approximately what minimum voltage would be present between the storm cloud’s base and the ground immediately before a bolt of lightning from this storm strikes the ground?
