High School

Match the descriptions with the recorded reading from a mass measurement using the scale provided with your lab kit. Assume that the actual mass should be 38.6 g.

1. 0.0386 kg
2. 1.360 oz
3. 38.6
4. 38.6 g
5. 38.6 kg
6. Fluctuating from 38.4 g to 38.8 g

A. Units are converted before recording
B. Scale is set to wrong unit
C. Mass is too large (overload error)
D. Correct reading
E. Wrong units are recorded
F. Breath or moving air affecting reading
G. Units are missing

Answer :

Final answer:

The recorded mass measurements are matched with their descriptions such as correct reading, unit conversion, and incorrect units hence, answer is D. Correct reading

Explanation:

In matching the descriptions with the recorded reading for a mass measurement of 38.6 g, we can determine the following:

  • Type A: EEEE - Fluctuating from 38.4 g to 38.8 g corresponds to 'D. Correct reading' as it is common for scales to have slight fluctuations around the actual mass.
  • 0.0386 kg corresponds to 'A. Units are converted before recording' because the mass has been converted from grams to kilograms correctly (since 38.6 g is 0.0386 kg).
  • 1.360 oz corresponds to 'B. Scale is set to wrong unit' since this is a unit of ounces, not grams or kilograms.
  • 38.6 corresponds to 'G. Units are missing' because no units are specified next to the number.
  • 38.6 g corresponds to 'D. Correct reading' as it shows the mass in grams, which is the expected measurement.
  • 38.6 kg corresponds to 'C. Mass is too large (overload error)' because the mass is given in kilograms and it is too high compared to the actual mass in grams.
  • Type B: HHHHH potentially corresponds to 'F. Breath or moving air affecting reading' if the HHHHH signifies an unstable reading.