Measurement, Uncertainty, Accuracy, and Precision

Front

What is the definition of measurement in scientific terms?

Back

Measurement is the process of obtaining the magnitude of a quantity relative to a standard unit.

Tags

NGSS.MS-PS2-2

Front

What are certain digits in a measurement?

Back

Certain digits are the digits in a measurement that are known with complete confidence.

Front

How many certain digits should a measurement of the pink bar have?

Back

2

Front

What are uncertain digits in a measurement?

Back

Uncertain digits are the digits in a measurement that are estimated and not known with complete confidence.

Front

How many uncertain digits should a measurement of the pink bar have?

Back

1

Front

What does it mean for a measurement to be accurate?

Back

A measurement is accurate if it is close to the true or accepted value.

Front

What does it mean for a measurement to be precise?

Back

A measurement is precise if it yields consistent results when repeated under the same conditions.

Front

Describe Mr. Millhollan's Dart Shooting Game when the shots are accurate but not precise.

Back

The shots are close to the target (true value) but spread out, indicating variability.

Front

Describe Mr. Millhollan's Dart Shooting Game when the shots are of high precision and high accuracy.

Back

The shots are clustered closely together and near the target, indicating both consistency and correctness.

Front

Describe Mr. Millhollan's Dart Shooting Game when the shots are precise but not accurate.

Back

The shots are clustered together but far from the target, indicating consistency but incorrectness.