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Class 9 Mcq

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

ScienceHow should the relationship between facts and value judgements in science be understood?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceWhy is it necessary to state the amount of uncertainty in scientific knowledge?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceIf a new version of a scientific theory explains all earlier successful predictions as well as new evidence what is its advantage?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceA study showed a clear benefit but did not measure harms. What is the most appropriate conclusion?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceIf a claim is supported only by computer simulation with no real observations what limitation remains?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceParticipants changed groups during a study. Which interpretation becomes difficult?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceA scientific conclusion says that the evidence proved the hypothesis. Which statement is more appropriate?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceIf a result appears only with one highly specific instrument and not with others what should be examined?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceA researcher defined data exclusion criteria before starting the study. What is the main benefit?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceIf evidence for and against a claim is of similar quality how should the scientific conclusion be framed?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceIf a control group did not receive the treatment but received more attention which factor may affect the outcome?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceAdding a new variable to a scientific model improves the fit to old data but the variable cannot be measured. What is the concern?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceA conclusion is accepted by many experts but the original data are unavailable. What is the most appropriate evaluation?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceA scientific report provides all data but omits the units of variables. What is the main problem?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceIf a scientific question cannot be tested by a controlled experiment for ethical reasons what is the best alternative?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceA scientist labelled an opposing result as measurement error without investigation. What is the correct scientific step?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceIf all supporting studies are small while larger studies show no effect what should be examined?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceA study finds a very small effect using highly precise measurements. Which conclusion is appropriate?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceStudies supporting a scientific conclusion were conducted under very similar conditions. What kind of test would be most useful next?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3ExpertScienceThe operational definition in an experiment was unclear and different observers interpreted it differently. What is the best improvement?Class 9Exploration: Entering the World of Secondary ScienceNature and meaning of scienceLevel 3Expert

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