Measurement Errors Quiz

This bullseye demonstrates...

• High Accuracy & High Precision

• Low Accuracy & High Precision

• High Accuracy & Low Precision

• Low Accuracy & Low Precision

Which of these is NOT true for random errors?

• They are less likely for small sample sizes.

• They are difficult to detect.

• They do not arise from the design of the study.

Random errors lead to a lack of:

• accuracy in the measurement.

• precision in the measurement.

• significant digits in the measurement.

• gradation of the measuring instrument

Systematic errors lead to a lack of:

• precision in the measurement.

• gradation of the measuring instrument

• significant digits in the measurement.

• accuracy in the measurement.

The diagram above represents a target with a grouping of shots. Based on the pattern, what does it indicate about the accuracy and precision of the shots?

• Low Accuracy & High Precision

• High Accuracy & High Precision

• High Accuracy & Low Precision

• Low Accuracy & Low Precision

Identify which uncertainties can be committed by students during handling this instrument.

• Environmental error

• Wrong calibration

• Random error

• Parallax error

Tags

NGSS.HS-PS1-3

What type of error influences the accuracy of your measurements and can come from faulty calibration of an instrument?

• Both Systematic and random error

• Systematic Error

• Random Error

Repeated measurements of a quantity can reduce the effects of

• random errors

• both random errors and systematic errors

• neither random errors nor random errors

• systematic errors

Which of these is NOT true for systematic errors?

• They arise from the design of the study.

• They are reproducible inaccuracies that are consistently in the same direction.

• They arise due to errors in the measuring instruments used.

• Repeating the observations or increasing the sample size can eliminate them.

How close a measurement is to the true value is called.

• Precision

• Accuracy

• Estimate

• Significant