Nokea
What mnemonic helps in recalling metric conversions?
- A. King Hector Died By Drinking Chocolate Milk
- B. Kittens Have Delighted By Dancing Cool Moves
- C. Memorize Your Units Well
- D. Convert These Every Time
Correct Answer: A
Rationale: The mnemonic 'King Hector Died By Drinking Chocolate Milk' aids in recalling metric prefixes in order: kilo-, hecto-, deca-, base (meter, liter, gram), deci-, centi-, milli-. Choice B does not provide a relevant mnemonic for metric conversions. Choices C and D do not offer a helpful phrase for remembering metric prefixes, making them incorrect.
You may also like to solve these questions
What is 0.4 grams in milligrams?
- A. 400 mg
- B. 40 mg
- C. 4 mg
- D. 4000 mg
Correct Answer: A
Rationale: To convert grams to milligrams, you need to multiply by 1000 as there are 1000 milligrams in one gram. Therefore, 0.4 grams x 1000 = 400 mg. Choice A, 400 mg, is the correct answer. Choices B, C, and D are incorrect because they do not correctly apply the conversion factor of 1000 to convert grams to milligrams.
What is 0.09 liters in milliliters when converted?
- A. 0.09 ml
- B. 90 ml
- C. 900 ml
- D. 9 ml
Correct Answer: B
Rationale: To convert liters to milliliters, you need to multiply by 1,000 since there are 1,000 milliliters in a liter. Therefore, 0.09 liters x 1,000 = 90 milliliters. Choice A, 0.09 ml, is incorrect as it represents the original volume in milliliters. Choices C and D, 900 ml and 9 ml, are incorrect as they miscalculate the conversion from liters to milliliters.
What is equivalent to 1 L?
- A. 1 kilogram
- B. 1 quart
- C. 1 milliliter
- D. 1000 milliliters
Correct Answer: D
Rationale: 1 liter is equivalent to 1000 milliliters. This conversion is based on the fact that 1 liter equals 1000 milliliters, a standard metric relationship. Choice A is incorrect because a kilogram is a unit of mass, not volume. Choice B, 1 quart, is a non-metric unit of volume and is not equivalent to 1 liter. Choice C, 1 milliliter, is too small to be equivalent to 1 liter; it takes 1000 milliliters to make up 1 liter.
What is 0.07 as a simplified fraction?
- A. 7/100
- B. 7/50
- C. 7/25
- D. 7/10
Correct Answer: A
Rationale: The decimal 0.07 can be expressed as the fraction 7/100, where 7 is the numerator and 100 is the denominator. To simplify the fraction, you divide both the numerator and denominator by their greatest common divisor, which in this case is 1. Therefore, 7/100 is already in its simplest form and cannot be further simplified. Choices B, C, and D are incorrect fractions as they do not represent the decimal 0.07.
What is the correct conversion of 35,400 milligrams to grams (g)?
- A. 35.4 g
- B. 35.4 g
- C. 354 g
- D. 354,000 g
Correct Answer: B
Rationale: To convert milligrams to grams, you need to divide by 1,000 because there are 1,000 milligrams in a gram. Therefore, 35,400 mg · 1,000 = 35.4 grams. Choice A is incorrect because it does not account for the conversion from milligrams to grams. Choice C is incorrect as it incorrectly drops a zero, leading to an inaccurate conversion. Choice D is incorrect as it incorrectly multiplies instead of dividing, resulting in a significantly larger value than the correct answer.