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Sound

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

ScienceAn experiment tests the effect of sound intensity on concentration. Participants are given questions of different difficulty. Which variable was not controlled?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentHard ScienceIn an investigation, sound intensity is changed and a person's reaction time is measured. Which is the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceWhich factor is appropriate to control while testing the effect of sound?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium ScienceIn which question can the loudness of sound be observed?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsEasy ScienceWhich observation is made using a sense organ?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsEasy ScienceWhich sense is useful for observing sound?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsEasy ScienceWhat would be a better quantitative observation than merely describing a sound as loud?Class 9Exploration: Entering the World of Secondary ScienceScientific questions and observationsMedium