please check my answers, they are Capitalized
1. the SI base unite used to measure mass is the
a. meter
b. second.
C. kilogram
d. liter
2. how does a scientist reudce the frequency of human error and minimize a lack of accuracy?
a. take repeated measurements
b. use the same method of measurements
c. maintain instruments in good working order
D. all of the above
thanks :)
Look fine to me.
(I prefer metre, but I am in Europe)
1) ok
2) A is the best answer, b,c have nothing to do with human error, they have to do with measurement error. Your text may disagree.
We often look for many repetitions, spaced over time, taken by different observers as the best method of minimizing human error.
Now b, c also reduce error, human and instrument.
It may be that the question is looking for this, and D would be the answer. I am not convinced the questions were well conceived, but you may be correct in your text materials viewpoint.
The problem with b and human error is that often when we get wrong results, it is because of the method of measurement, so repeating it wont help.
i think D would be best for me because i wasn't sure if i read about A, but i definitely found B and C in my book. so i think im gonna go with D.
thanks:)
Great! Let's check your answers:
1. The SI base unit used to measure mass is the:
a. meter - Incorrect. The meter is the SI base unit for measuring length.
b. second - Incorrect. The second is the SI base unit for measuring time.
C. kilogram - Correct! The kilogram is the SI base unit for measuring mass.
d. liter - Incorrect. The liter is a unit of volume, not mass.
2. How does a scientist reduce the frequency of human error and minimize a lack of accuracy?
a. Take repeated measurements - Correct! Taking repeated measurements helps to minimize random errors and improve accuracy.
b. Use the same method of measurements - Correct! Using the same method of measurements ensures consistency and reduces systematic errors.
c. Maintain instruments in good working order - Correct! Maintaining instruments in good working order ensures precision and accuracy.
D. All of the above - Correct! Taking repeated measurements, using the same method, and maintaining instruments all contribute to minimizing errors and maximizing accuracy.
So, you got both answers correct! Well done!