Metric Conversions for Nursing

Correct Answer: B

Rationale: To convert centimeters to millimeters, we multiply by 10 since there are 10 millimeters in 1 centimeter. Therefore, 5 cm x 10 = 50 mm. Thus, the correct answer is A. Option B (500 mm) is incorrect as it is the result of multiplying 5 cm by 100 instead of 10. Option C (5 mm) is incorrect as it represents the original value in centimeters, not the converted value in millimeters. Option D (500 cm) is incorrect as it is the original value in centimeters, not the converted value in millimeters.

Correct Answer: A

Rationale: The prefix 'Tera' corresponds to the value of 10^12. This can be understood by knowing that the International System of Units (SI) prefixes are based on powers of 10. 'Tera' comes after 'Giga' (10^9) and before 'Peta' (10^15). Therefore, the correct choice is A. Summary of other choices: B: Incorrect because 'Giga' represents 10^9. C: Incorrect as 'Peta' represents 10^15, a higher value. D: Incorrect because 'Mega' represents 10^6, a lower value than 'Tera'.

Correct Answer: B

Rationale: To convert 0.16 inches to a fraction, we can write it as 16/100 or 4/25. Both 16/100 and 4/25 are equivalent to 0.16. Therefore, the correct answer is B: 0.16 inches. Option A (0.016 inches) is incorrect as it is one-tenth of the correct value. Option C (1.6 inches) is incorrect as it is ten times the correct value. Option D (16 inches) is incorrect as it is one hundred times the correct value.

Correct Answer: B

Rationale: The correct answer is B: 100 cm. There are 100 centimeters in one meter because the metric system is based on units of 10. 1 meter is equivalent to 100 centimeters. Choice A is incorrect because 1/10 cm is not a valid conversion from meters to centimeters. Choice C is incorrect as 10 cm is the conversion from decimeters to centimeters, not meters. Choice D is incorrect because 1000 cm is the conversion from meters to millimeters, not centimeters. Therefore, the correct choice is B as it accurately reflects the conversion from meters to centimeters in the metric system.

Correct Answer: B

Rationale: The correct answer is B: 4 quarts. There are 4 quarts in 1 gallon because a quart is a unit of volume equal to a quarter of a gallon. Therefore, when you multiply 1 gallon by 4 quarts per gallon, you get 4 quarts. Choice A (2 quarts) is incorrect because 2 quarts is only half of a gallon. Choice C (3 quarts) is incorrect because 3 quarts is three-quarters of a gallon. Choice D (1 quart) is incorrect because 1 quart is only a quarter of a gallon.