ATI TEAS 7
Metric Conversions for TEAS 7
1. Convert 345 kilometers to meters (m).
- A. 345,000 m
- B. 34,500 m
- C. 34,500,000 m
- D. 345,000,000 m
Correct answer: B
Rationale: To convert kilometers to meters, you need to multiply by 1,000 since there are 1,000 meters in a kilometer. Therefore, 345 km multiplied by 1,000 equals 345,000 meters. Choice A is incorrect as it incorrectly places the comma. Choice C is incorrect as it adds an extra zero at the end. Choice D is incorrect as it adds an extra zero at the beginning, resulting in an incorrect conversion.
2. How many ounces are in one gallon?
- A. 64 ounces
- B. 128 ounces
- C. 100 ounces
- D. 150 ounces
Correct answer: B
Rationale: The correct answer is B: 128 ounces. One gallon is equivalent to 128 ounces. This conversion relationship is commonly used in cooking, baking, and various liquid measurements. Choice A (64 ounces) is incorrect as it represents half the amount of a gallon. Choice C (100 ounces) and Choice D (150 ounces) are also incorrect, as they do not accurately reflect the conversion of a gallon to ounces.
3. Convert 3,450 grams to milligrams (mg).
- A. 34,500 mg
- B. 3,450,000 mg
- C. 3,450 mg
- D. 3,450,000 mg
Correct answer: B
Rationale: To convert grams to milligrams, you need to multiply by 1,000 since there are 1,000 milligrams in a gram. Therefore, 3,450 grams × 1,000 = 3,450,000 milligrams. Choice A (34,500 mg) is incorrect because it represents the result for converting grams to milligrams by a factor of 10 (not 1,000). Choice C (3,450 mg) is incorrect as it represents the original amount in grams, not the converted amount to milligrams. Choice D (3,450,000 mg) is incorrect as it is the same as the correct answer but with the comma in the wrong place, which would imply converting kilograms to milligrams rather than grams to milligrams.
4. What does 'km' stand for in the metric system?
- A. kilometer
- B. kilomole
- C. kilobyte
- D. knot
Correct answer: A
Rationale: In the metric system, 'km' stands for kilometer, which is a unit of length equal to 1,000 meters. This choice is correct as 'kilometer' is the standard unit for measuring long distances. Choice B, 'kilomole,' is incorrect as it is a unit in chemistry representing a quantity of substance. Choice C, 'kilobyte,' is incorrect as it is a unit of digital information storage, not a unit of measurement. Choice D, 'knot,' is incorrect as it is a unit of speed used in navigation and aeronautics, not a unit of length in the metric system.
5. Convert 1.5 kilometers to meters.
- A. 1,500 meters
- B. 150 meters
- C. 15,000 meters
- D. 1.5 meters
Correct answer: A
Rationale: To convert kilometers to meters, you need to multiply by 1,000 since there are 1,000 meters in a kilometer. Therefore, 1.5 kilometers is equal to 1,500 meters (1.5 x 1,000 = 1,500). Choice A, '1,500 meters,' is the correct answer. Choice B, '150 meters,' is incorrect as it represents converting 0.15 kilometers to meters. Choice C, '15,000 meters,' is incorrect as it represents multiplying by 10,000 instead of 1,000. Choice D, '1.5 meters,' is incorrect as it doesn't convert the kilometers to meters accurately.
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