Working with Data Vocabulary (Science_GCSE)

A measurement result is considered ______ if it is judged to be close to the true value.

• accurate

• precise

• random

• biased

Marking a scale on a measuring instrument to establish the relationship between indications of a measuring instrument and standard or reference quantity values is called ______.

• calibration

• insulation

• lubrication

• alignment

Information, either qualitative or quantitative, that has been collected is called ______.

• data

• theory

• hypothesis

• variable

The difference between a measured value and the true value is called ______.

• measurement error

• measurement unit

• measurement scale

• measurement range

Values in a set of results which are judged not to be part of the variation caused by random uncertainty are called ______.

• anomalies

• means

• constants

• averages

These cause readings to be spread about the true value, due to results varying in an unpredictable way from one measurement to the next. What is this type of error called?

• random error

• systematic error

• gross error

• instrumental error

These cause readings to differ from the true value by a consistent amount each time a measurement is made. What is this type of error called?

• systematic error

• random error

• gross error

• parallax error

Fill in the blank: Any indication that a measuring system gives a false reading when the true value of a measured quantity is zero, e.g., the needle on an ammeter failing to return to zero when no current flows, is called _________.

• Zero error

• Parallax error

• Systematic error

• Random error

Fill in the blank: Data which has been shown to be valid is called _________.

• Evidence

• Noise

• Assumption

• Guess

Fill in the blank: A _________ is one in which only the independent variable has been allowed to affect the dependent variable.

• Fair test

• Random test

• Biased test

• Uncontrolled test