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Precision

Class 9 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceIn the same experiment liquid volume is measured using different measuring cylinders with different precision. This problem is related to which variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentHard ScienceRepeated experimental results are very similar to one another but far from the true value. What can be said about the measurements?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationExpert ScienceRepeated measurements are sometimes slightly high and sometimes slightly low. What is the best way to reduce this uncertainty?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationExpert ScienceAn experiment gives results of (12.1) cm (12.0) cm and (12.2) cm while the true value is (15.0) cm. How should these measurements be described?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationExpert ScienceWhich option would most improve the precision of measurement?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationExpert ScienceIf a result difference is smaller than the instrument's measurement resolution what conclusion is appropriate?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationExpert ScienceIf the smallest ruler division is one centimetre what limitation exists when comparing millimetre level differences?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationExpert ScienceResults follow the expected direction but the difference is very small and comparable to measurement error. What is the most appropriate conclusion?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceA temperature instrument records only whole-number values while small changes are expected. What is the main limitation?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceIf two experiments give the same average but one has less spread in its values which experiment is more precise?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceIf repeated measurements are close to one another but far from the accepted value what is the correct conclusion?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceIf the smallest division of a measuring instrument is one millimetre which value is recorded appropriately?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceA student recorded temperature as hot cold and normal. What improvement would allow more precise comparison?Class 9Exploration: Entering the World of Secondary ScienceRecording and analysing dataMedium ScienceThe smallest division of a measuring instrument is five millimetres. A student records a length as twelve point three four centimetres. What is wrong?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert ScienceFour students measured the same object's length and obtained slightly different results. What is the most appropriate scientific response?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert ScienceIf the markings on a ruler used in an investigation are very thick what will be the main limitation?Class 9Exploration: Entering the World of Secondary ScienceMeasurement and scientific unitsMedium ScienceIn an experiment three values are close to one another but all are far from the accepted value. What does this situation indicate?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceA student measured three times and obtained values of twelve point one centimetres twelve point two centimetres and twelve point one centimetres. What do these values mainly indicate?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard ScienceWhich statement is a more precise observation?Class 9Exploration: Entering the World of Secondary ScienceMeasurement and scientific unitsEasy ScienceWhich of the following observations is the most precise?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsMedium