What is Metrology

Multiple Choice

Which of the following best describes metrology?

• The study of weather patterns

• The science of measurements

• The art of manufacturing

• The process of chemical reactions

Open Ended

Why is it important for measurements to be accurate and reliable in engineering and manufacturing?

Multiple Select

Which of the following is an example of quantitative data about a bookcase?

• Is 3 feet tall

• Is made of wood

• Weighs 100 pounds

• Smells like oak

Multiple Select

Select all the examples of qualitative data about a bookcase.

• Is deep brown

• Has 15 books on it

• Has golden knobs

• Weighs 100 pounds

Fill in the Blanks

A 'good' measurement is one that can be

when making decisions.

Multiple Choice

Which of the following terms is NOT typically associated with metrology vocabulary?

• Calibration

• Accuracy

• Hypothesis

• Precision

Multiple Choice

Which of the following best describes the role of units in measurements?

• Units define measurements and give numbers value.

• Units are only used for length.

• Units are not necessary for scientific measurements.

• Units are only used in the SI system.

Open Ended

Explain the difference between accuracy and precision in the context of scientific measurements.

Multiple Choice

Which of the following combinations describes a measurement that is accurate but imprecise?

• Values close to the true value but scattered.

• Values far from the true value but close together.

• Values close to the true value and close together.

• Values far from the true value and scattered.

Drag and Drop

Type qFill in the blank: A standard is an external ​

Placeholder

used to evaluate measurements.

Drag these tiles and drop them in the correct blank above

authority

precision

clarification

hypothisis

Multiple Choice

Which of the following is a step in calibrating a balance?

• Using standards with known masses

• Removing the units from any values

• Ignoring external standards

• Estimating the values

Open Ended

Why is dimensioning important in technical drawings and engineering?

Multiple Choice

Which of the following best describes the difference between 1 dimension, 2 dimensions, and 3 dimensions as shown in the diagrams?

• 1 dimension is length; 2 dimensions are length and width; 3 dimensions are length, width, and height.

• 1 dimension is width; 2 dimensions are width and height; 3 dimensions are width, height, and depth.

• 1 dimension is area; 2 dimensions are volume; 3 dimensions are mass.

• 1 dimension is height; 2 dimensions are height and depth; 3 dimensions are height, depth, and mass.

Fill in the Blanks

In the U.S., traceability for most physical and some chemical standards goes back to

(National Institute of Standards and Technology).

Multiple Select

Which of the following are types of error responsible for the difference between a measured value and the 'true' value?

• Gross (blunders)

• Random

• Systematic

• Density

Fill in the Blanks

Systematic error impacts

in scientific measurements.

Multiple Choice

Which ruler gives the length of the arrow with the most certainty?

• Ruler (a)

• Ruler (b)

• Both rulers give the same certainty

• Neither ruler gives certainty

Fill in the Blanks

Metrology is the science of

.

Open Ended

Reflecting on today's lesson about metrology, what is one aspect of measurement that you found most interesting or important?