Accuracy and Precision

Front

What is the definition of accuracy in measurements?

Back

Accuracy refers to how close a measurement is to the accepted or true value.

Front

What is the definition of precision in measurements?

Back

Precision refers to the consistency or repeatability of measurements, regardless of their accuracy.

Front

What does a bullseye with all darts clustered closely together but far from the center indicate?

Back

Low Accuracy & High Precision.

Front

What does a bullseye with darts spread out but centered around the target indicate?

Back

High Accuracy & Low Precision.

Front

What does a bullseye with darts scattered and far from the center indicate?

Back

Low Accuracy & Low Precision.

Front

What is the estimated volume of a pipette marked at 25.5 mL?

Back

25.5 mL.

Front

How do you convert milliliters to liters?

Back

To convert mL to L, divide the volume in mL by 1000.

Front

What is the estimated volume of a beaker marked at 48 mL?

Back

48 mL.

Front

What is the estimated volume of a graduated cylinder marked at 63.5 mL?

Back

63.5 mL.

Front

If a measurement is consistently off by the same amount, what does this indicate about its accuracy?

Back

It indicates that the measurement is precise but not accurate.