ATI TEAS 7
Metric Conversions for TEAS 7 Questions
Question 1 of 5
What is the metric prefix for 10^-12 and how does it relate to meters?
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.
Question 2 of 5
What is 0.5 liters in ml?
Correct Answer: A
Rationale: To convert liters to milliliters, you multiply by 1000 since 1 liter = 1000 ml. Therefore, 0.5 liters x 1000 = 500 ml. Thus, the correct answer is A (500 ml). Choice B (50 ml) is incorrect as it is 10 times smaller than the correct answer. Choice C (5 ml) is incorrect as it is 100 times smaller than the correct answer. Choice D (0.5 ml) is incorrect as it is the same value in milliliters, not the conversion of liters to milliliters.
Question 3 of 5
Which instrument is used to measure the mass of an object?
Correct Answer: B
Rationale: The correct answer is B: balance scale. A balance scale is used to measure the mass of an object by comparing it to a set of known masses. It works on the principle of equilibrium, where the object's mass is balanced by adding or removing known masses until the scale is level. Choice A, thermometer, measures temperature, not mass. Choice C, scale, is a general term and could refer to different types of scales, but a balance scale specifically measures mass. Choice D, caliper, is used to measure dimensions such as length or diameter, not mass. Therefore, the balance scale is the correct choice for measuring mass accurately.
Question 4 of 5
What is the base unit for liquid volume in the metric system?
Correct Answer: B
Rationale: The correct answer is B: Liters. Liters are the base unit for liquid volume in the metric system because they are used to measure larger volumes, making them more practical for everyday use. Milliliters are a smaller unit derived from liters, making them not the base unit. Gallons are not part of the metric system; they are commonly used in the imperial system. Choosing Liters again reinforces that it is the correct base unit for liquid volume in the metric system.
Question 5 of 5
Convert 0.04 grams to milligrams.
Correct Answer: A
Rationale: To convert grams to milligrams, you need to multiply by 1000 since there are 1000 milligrams in 1 gram. So, 0.04 grams x 1000 = 40 mg. Therefore, the correct answer is A. Choice B is incorrect because it's 10 times smaller than the correct answer. Choice C is incorrect because it's 100 times larger than the correct answer. Choice D is incorrect because it's 100 times smaller than the correct answer.
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