ATI TEAS 7
Nursing Metric Conversions Questions
Question 1 of 5
What is the base unit for mass in the metric system?
Correct Answer: B
Rationale: The correct answer is B: grams. Grams are the base unit for mass in the metric system. The metric system is based on powers of ten, making it easy to convert between units. Milligrams (A) are smaller units, kilograms (C) are larger units, and tons (D) are even larger units. Grams are the most commonly used unit for measuring everyday items and are the standard unit for mass in the metric system.
Question 2 of 5
What is it called when base units are combined, such as g/mL for density?
Correct Answer: B
Rationale: The correct answer is B: derived units. Derived units are formed when base units are combined using mathematical operations. In the case of g/mL for density, grams (g) and milliliters (mL) are base units that are combined to express the derived unit of density. This combination involves division to represent the mass per unit volume. Therefore, derived units are the appropriate term for such combinations. Summary: A: Combined units is a vague term and does not specifically refer to the mathematical combination of base units. C: Base units refer to the fundamental units from which derived units are formed, but they are not the combination of base units. D: Calculated units do involve mathematical operations, but they do not specifically refer to the combination of base units to form derived units.
Question 3 of 5
How many centimeters are in 0.25 meters?
Correct Answer: B
Rationale: To convert meters to centimeters, we know that 1 meter is equal to 100 centimeters. Therefore, to find how many centimeters are in 0.25 meters, we multiply 0.25 by 100, giving us 25 centimeters. Explanation for incorrect choices: A: 2.5 cm - Incorrect because 0.25 meters is equivalent to 25 cm. C: 250 cm - Incorrect because multiplying 0.25 by 100 gives 25 cm, not 250 cm. D: 0.25 cm - Incorrect because this doesn't follow the conversion from meters to centimeters.
Question 4 of 5
What is 0.16 as a fraction?
Correct Answer: C
Rationale: To convert 0.16 to a fraction, we consider the decimal places. Since 0.16 has 2 decimal places, we write it as 16/100. Simplifying by dividing both numerator and denominator by 4, we get 4/25. Therefore, the correct answer is C. Option A is incorrect as it does not simplify to the simplest form. Option B is incorrect as it has an additional zero in the denominator. Option D is incorrect as it simplifies to 2/25, not 4/25.
Question 5 of 5
How many ounces are in 2 quarts?
Correct Answer: C
Rationale: To convert from quarts to ounces, you need to know that 1 quart is equal to 32 ounces. Therefore, 2 quarts would be 2 * 32 = 64 ounces. The correct answer is C (16 ounces) because it is the only option that correctly states the conversion from quarts to ounces. Option A (8 ounces) is incorrect as it is half of the correct answer. Option B (32 ounces) is incorrect as it represents the amount in 1 quart, not 2 quarts. Option D (64 ounces) is incorrect as it corresponds to the total number of ounces in 2 quarts, not the conversion from quarts to ounces.
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