What is 0.5 liters to milliliters?
- A. 500 ml
- B. 50 ml
- C. 5 ml
- D. 0.5 ml
Correct Answer: A
Rationale: The question asks for the conversion of 0.5 liters to milliliters. The correct answer is 500 ml, which is derived from the standard conversion factor where 1 liter is equal to 1000 milliliters. Choice B, 50 ml, is incorrect as it represents the conversion of 0.05 liters to milliliters. Choice C, 5 ml, is incorrect as it corresponds to the conversion of 0.005 liters to milliliters. Choice D, 0.5 ml, is incorrect as it is the same value given in the question but in milliliters.
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What is the term for the amount of space an object occupies?
- A. mass
- B. volume
- C. density
- D. area
Correct Answer: B
Rationale: The correct term for the amount of space an object occupies is 'volume.' Volume refers to the three-dimensional space that an object occupies and is measured in cubic units like cubic meters. 'Mass' (Choice A) refers to the amount of matter in an object, 'density' (Choice C) is the mass per unit volume of a substance, and 'area' (Choice D) is the measurement of the extent of a surface.
What is 0.175 mg in mcg?
- A. 175 mcg
- B. 1.75 mcg
- C. 1750 mcg
- D. 17.5 mcg
Correct Answer: C
Rationale: To convert milligrams to micrograms, you need to multiply by 1000 because there are 1000 micrograms in 1 milligram. Therefore, 0.175 mg x 1000 = 1750 mcg. The correct answer is 1750 mcg. Choices A, B, and D are incorrect because they do not account for the conversion factor of 1000 between milligrams and micrograms. It's crucial to understand these conversions in medical calculations to ensure accurate dosing and prevent medication errors.
What is 0.04 grams converted to milligrams?
- A. 40 mg
- B. 4 mg
- C. 400 mg
- D. 0.4 mg
Correct Answer: A
Rationale: To convert grams to milligrams, you need to multiply by 1000, not 10000. Therefore, to convert 0.04 grams to milligrams, you multiply 0.04 by 1000, which equals 40 mg. Choice A (40 mg) is the correct answer. Choice B (4 mg) is incorrect as it represents converting 0.004 grams to milligrams. Choice C (400 mg) is incorrect as it is 10 times the correct conversion. Choice D (0.4 mg) is incorrect as it is 10 times smaller than the correct conversion.
What is 1500 milliliters in liters?
- A. 1.5 liters
- B. 0.15 liters
- C. 15 liters
- D. 0.015 liters
Correct Answer: A
Rationale: To convert milliliters to liters, you need to divide by 1000 since there are 1000 milliliters in 1 liter. Therefore, 1500 milliliters divided by 1000 equals 1.5 liters, making option A the correct answer. Option B, 0.15 liters, is incorrect as it would be the conversion of 150 milliliters. Option C, 15 liters, is incorrect because it would be the conversion of 15,000 milliliters. Option D, 0.015 liters, is incorrect as it would be the conversion of 15 milliliters.
How many centimeters are in 1 inch?
- A. 2.54 cm
- B. 3 cm
- C. 2 cm
- D. 1 cm
Correct Answer: A
Rationale: The correct answer is A: 2.54 cm. One inch is equivalent to 2.54 centimeters. This conversion factor is commonly used when converting measurements between the metric and imperial systems. Choice B (3 cm) is incorrect as it is not the accurate conversion factor for 1 inch. Choice C (2 cm) is also incorrect as it does not reflect the correct conversion. Choice D (1 cm) is incorrect as it inaccurately states the conversion value for 1 inch.