Measurement, Errors, Data and Unit Conversion
How many micrograms are there in 0.25 g?
250
25,000
250,000
25,000,000
250,000
Micrograms are smaller than grams, so there will be more of them. A million times more, so 0.25 ร 106 = 250,000 ฮผg (g to ฮผg: shift the decimal point six places to the right).
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Given that 1 mmHg = 0.133 kPa, how can a systolic BP measurement of 120 mmHg be converted to a measurement in kPa?A. Divide 120 by 0.133
B. Multiply 120 by 0.133
C. Divide 0.133 by 120
D. Add 0.133โ120
What is meant when a person’s mass is stated as 73.6 kg? That:
A. The mass is closer to 73.6 than it is to 73.7 or 73.5.
B. The mass is closer to 73.6 than to any other value.
C. The mass is between 73.5 and 73.7.
D. The mass is 73.6 ยฑ0.1 kg.
How many milligrams are there in 1 ฮผg?
A. 0.001
B. 1000
C. 0.1
D. 1000 000
How many micrograms are there in 1 mg?
A. 0.001
B. 0.1
C. 100
D. 1000
What is the result of converting 650 ฮผg to mg?
A. 0.650
B. 6.50
C. 65
D. 65,000
What is 1.25 g converted to micrograms?
A. 125
B. 1250
C. 12,500
D. 1,250,000
A clinical thermometer is used to measure someone’s body temperature to be 101oF (Fahrenheit). When this temperature is converted to degrees Celsius using the conversion formula, T(ยฐC) = (T(ยฐF) โ 32) ร 5/9, what is the correct value?
A. โ6.5
B. 38.3
C. 82
D. 124
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