Measurement and Error

Quiz
•
Chemistry
•
12th Grade
•
Hard
Charles Martinez
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Decide the number of significant figures: 409.10
3
4
5
6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Decide the number of significant figures: 4091.00
3
4
5
6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A measurement result is considered ________ if it is judged to be close to the true value. It is influenced by random and systematic errors.
Precise
Accurate
An error
Resolution
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A quality denoting the closeness of agreement (consistency) between values obtained by repeated measurement. It is influenced by random effects and can be expressed numerically.
Repeatability
Precision
Uncertainty
Resolution
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Any measurement will have some ____________. This will come from variation in the data obtained and be subject to systematic or random effects. This can be estimated by considering the instruments and the method and will usually be expressed as a range such as 20 ± 2 °C.
Error
Precision
Reproducibility
Uncertainty
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The dashed line in the image represents
The error bars
The uncertainty
Line of best fit
Line of worst fit
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