Metric Conversions for TEAS 7

Correct Answer: A

Rationale: To find the result of multiplying 0.15 by 60, we simply multiply the two numbers. 0.15 x 60 = 9. This is because when you multiply a decimal by a whole number, you multiply as if the decimal point isn't there and then adjust the decimal point in the final answer. Therefore, the correct answer is A: 9. Choice B (15) is incorrect as it would be the result of multiplying 0.15 by 100. Choice C (45) is incorrect as it would be the result of multiplying 0.15 by 300. Choice D (60) is incorrect as it would be the result of multiplying 1 by 60.

Correct Answer: A

Rationale: The correct answer is A: King Hector Died By Drinking Chocolate Milk. This mnemonic stands for kilo, hecto, deka, base unit, deci, centi, milli - the order of metric prefixes. It helps remember the order and conversion factors for metric units. Choice B is irrelevant and does not relate to metric conversions. Choice C is too general and does not provide a specific mnemonic for metric conversions. Choice D does not provide any helpful information or mnemonic for recalling metric conversions.

Correct Answer: C

Rationale: The correct answer is C: femto- (f) = 10^-12 meters. The prefix "femto-" represents 10^-15, not 10^-12. Therefore, choices A and D are incorrect. Choice B, nano- (n) = 10^-12, is incorrect as well because it actually represents 10^-9. The correct relationship is that femto- (f) corresponds to 10^-12 meters, making option C the right choice.

Correct Answer: B

Rationale: The prefix 'centi' denotes the factor of 0.01. This is because 'centi' comes from the Latin word 'centum' which means one hundred. Therefore, 'centi' represents 1/100 or 0.01. The correct answer is B (0.01). Choice A (0.1) is incorrect as 'centi' is smaller than that. Choice C (0.001) is incorrect as it represents 'milli', not 'centi'. Choice D (1) is incorrect as 'centi' denotes a fraction of one, not a whole unit.

Correct Answer: C

Rationale: The correct answer is C: 1,000 grams. There are 1,000 grams in 1 kilogram because the prefix "kilo-" in the metric system signifies 1,000. Therefore, 1 kilogram equals 1,000 grams. Choice A (10 grams) is incorrect because it is not equivalent to a kilogram. Choice B (100 grams) is incorrect as well, as it is also not the correct conversion. Choice D (10,000 grams) is incorrect because it is ten times the amount in a kilogram.