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Accuracy

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

ScienceA student says that it is always possible to keep every controlled variable exactly identical. Which evaluation is most appropriate?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentHard ScienceDistance between a plant and lamp is changed to alter light intensity. How should the independent variable be recorded more accurately?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 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 ScienceEven after increasing the number of measurements all readings remain biased in the same wrong direction. What does this suggest?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceIf all measurements in an experiment are consistently two units above the true value what type of error is this?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceIf repeated measurements are close to one another but far from the true value how should the results be described?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceWhat is the main purpose of calibration in an experiment?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 all measurements in an experiment are consistently higher than the true value what is the most likely cause?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceWhich experimental change could improve accuracy without necessarily improving reliability?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationHard ScienceWhich action improves reliability but does not necessarily improve accuracy?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhat should be done if a zero error is found in an instrument?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhich is the most appropriate way to improve accuracy in an experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceIn which situation will the accuracy of a result be affected most?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhat problem may occur if a thermometer reading is recorded before it becomes stable?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationMedium ScienceWhy is it wrong to record guessed measurements in an experiment?Class 9Exploration: Entering the World of Secondary ScienceHypothesis and experimentationEasy ScienceWhat problem may occur if a thermometer reading is recorded immediately after placing it in a hot liquid?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsExpert ScienceTemperature was measured in an experiment but the thermometer calibration was not checked. Which quality may be affected most?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsHard 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