Nokea
Convert 3.75 liters to milliliters.
- A. 3.75 ml
- B. 375 ml
- C. 3750 ml
- D. 37.5 ml
Correct Answer: C
Rationale: To convert liters to milliliters, you need to multiply by 1000 since there are 1000 milliliters in 1 liter. Therefore, 3.75 liters x 1000 = 3750 milliliters. This means that option C, 3750 ml, is the correct conversion. Choices A, B, and D are incorrect because they do not reflect the correct conversion from liters to milliliters.
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How many yards are in one mile?
- A. 1760 yards
- B. 1500 yards
- C. 2000 yards
- D. 1800 yards
Correct Answer: A
Rationale: The correct answer is A: 1760 yards. There are 1760 yards in one mile. This conversion is a standard unit of measurement in the imperial system. Choice B, 1500 yards, is incorrect as it is not the correct conversion from miles to yards. Choice C, 2000 yards, is also incorrect as it does not represent the accurate conversion. Choice D, 1800 yards, is incorrect as it does not reflect the correct number of yards in a mile according to the established conversion rate.
Convert 0.2 liters to milliliters.
- A. 20 ml
- B. 200 ml
- C. 2 ml
- D. 2000 ml
Correct Answer: B
Rationale: To convert 0.2 liters to milliliters, you need to multiply by 1000 because there are 1000 milliliters in 1 liter. Therefore, 0.2 liters x 1000 = 200 ml. Choice A (20 ml) is incorrect because it represents 0.02 liters, not 0.2 liters. Choice C (2 ml) is incorrect as it represents 0.002 liters. Choice D (2000 ml) is incorrect as it represents 2 liters, not 0.2 liters.
What is the base unit for mass in the metric system?
- A. milligrams
- B. grams
- C. kilograms
- D. tons
Correct Answer: B
Rationale: The base unit for mass in the metric system is grams. Grams are the fundamental unit of mass in the metric system, representing smaller quantities than kilograms and tons. Milligrams are a smaller unit of mass, kilograms are a larger unit, and tons are even larger units. Therefore, the correct choice is grams.
What is the correct formula to convert Fahrenheit to Celsius?
- A. F = (C 9/5) + 32
- B. C = (F - 32) 5/9
- C. C = (F - 32) 9/5
- D. F = (C + 32) 5/9
Correct Answer: B
Rationale: The correct formula to convert Fahrenheit to Celsius is C = (F - 32) 5/9. This formula is derived from the relationship between the two temperature scales. The incorrect choices can be ruled out as follows:
A. F = (C 9/5) + 32 - This formula is used to convert Celsius to Fahrenheit.
C. C = (F - 32) 9/5 - This formula incorrectly multiplies by 9/5 instead of dividing.
D. F = (C + 32) 5/9 - This formula does not subtract the constant 32 from the Fahrenheit value.
What is 0.4 expressed in inches?
- A. 0.04 inches
- B. 4 inches
- C. 0.4 inches
- D. 40 inches
Correct Answer: C
Rationale: To express 0.4 in inches, you don't need to convert it further as it is already in inches. Therefore, the correct answer is 0.4 inches. Choice A (0.04 inches) is incorrect as it represents a smaller quantity. Choice B (4 inches) and Choice D (40 inches) are incorrect as they represent larger quantities, which are not equivalent to 0.4 inches.