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How many grams are in 5 kilograms?
- A. 50 grams
- B. 500 grams
- C. 5000 grams
- D. 5 grams
Correct Answer: C
Rationale: To convert kilograms to grams, you need to multiply by 1000 because there are 1000 grams in a kilogram. Therefore, 5 kilograms x 1000 grams/kilogram = 5000 grams. Choices A, B, and D are incorrect because they do not correctly convert kilograms to grams.
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What is 0.1 liter converted to milliliters?
- A. 10 ml
- B. 100 ml
- C. 1000 ml
- D. 1 ml
Correct Answer: B
Rationale: To convert 0.1 liter to milliliters, you need to multiply by 1000 because there are 1000 milliliters in a liter. Therefore, 0.1 liter converts to 100 milliliters. Choice A (10 ml) is incorrect as it represents 0.01 liters, not 0.1 liters. Choice C (1000 ml) is incorrect as it represents 1 liter, not 0.1 liters. Choice D (1 ml) is incorrect as it is too small a quantity for 0.1 liters.
What is the metric prefix for 10^-12 and how does it relate to meters?
- A. pico- (p) = 10^-12 meters
- B. nano- (n) = 10^-12 meters
- C. femto- (f) = 10^-12 meters
- D. pico- (p) = 10^-15 meters
Correct Answer: C
Rationale: The prefix 'femto-' stands for 10^-15, making femtometer equal to 10^-15 meters. The incorrect choices are A and B because 'pico-' represents 10^-12 (picometer) and 'nano-' represents 10^-9 (nanometer), respectively. Choice D is also incorrect as 'pico-' is associated with 10^-12, not 10^-15.
What is 0.875 as a fraction?
- A. 7/8
- B. 9/10
- C. 5/6
- D. 3/4
Correct Answer: A
Rationale: To convert 0.875 to a fraction, you can write it as 875/1000. Simplifying this fraction by dividing the numerator and denominator by their greatest common divisor, which is 125, gives you 7/8. Therefore, the correct answer is 7/8. Choice B (9/10), Choice C (5/6), and Choice D (3/4) are incorrect as they do not represent the fraction equivalent of 0.875.
How many milliliters are there in 0.5 liters?
- A. 500 milliliters
- B. 50 milliliters
- C. 5 milliliters
- D. 0.5 milliliters
Correct Answer: A
Rationale: To convert liters to milliliters, you need to multiply by 1000 since there are 1000 milliliters in a liter. Therefore, 0.5 liters is equal to 500 milliliters. Choices B, C, and D are incorrect because they do not reflect the correct conversion from liters to milliliters.
What is the metric equivalent of 1 inch?
- A. 1.54 cm
- B. 2.54 cm
- C. 3.54 cm
- D. 4.54 cm
Correct Answer: B
Rationale: The correct answer is B: 2.54 cm. One inch is equivalent to 2.54 centimeters in the metric system. This conversion factor is commonly used in converting measurements between the imperial and metric systems. Choice A (1.54 cm), Choice C (3.54 cm), and Choice D (4.54 cm) are incorrect conversions and do not represent the accurate metric equivalent of 1 inch.