AJ794152 Tier 3 Vocabulary quiz - Errors and Data

A measurement result is considered accurate if it is judged to be close to the true value, - select the relevant key word

• data

• accuracy

• calibration

• anomaly

The difference between a measured value and the true value.

• error

• accuracy

• random error

• Measurement error

Select the correct definition of random error

• The difference between a measured value and the true value.

• results vary in an unpredictable way from the true value

• Readings differ from the true value by a consistent amount each time a measurement is made.

• A measuring system gives a false reading when the true value of a measured quantity is zero, eg the needle on an ammeter failing to return to zero when no current flows.

Systematic errors

• These cause readings to be spread about the true value, due to results varying in an unpredictable way from one measurement to the next.

• These cause readings to differ from the true value by a consistent amount each time a measurement is made. S

• Any indication that a measuring system gives a false reading when the true value of a measured quantity is zero,

Evidence is ........

• A proposal intended to explain certain facts or observations.

• Data that is shown to be valid

Tags

NGSS.MS-LS2-4

Precise measurements are .....

• ones in which there is a lot of spread about the mean value

• ones in which there is very little spread about the mean value.

• ones in which there is no spread about the mean value

The true value is ,,,,,,,,,

• values that are labels, e.g. names of plants or types of material.

• a fair test

• values that are labels, eg names of plants or types of material

• the value that would be obtained in an ideal measurement.

A measurement result is considered accurate if it is judged to be close to the true value, - select the relevant key word

• data

• accuracy

• calibration

• anomaly

Precise measurements are .....

• ones in which there is a lot of spread about the mean value

• ones in which there is very little spread about the mean value.

• ones in which there is no spread about the mean value

A measurement result is considered accurate if it is judged to be close to the true value, - select the relevant key word

• data

• accuracy

• calibration

• anomaly