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Variables In An Experiment

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

ScienceIn an experiment, the volume of music is changed and reading speed is measured. What type of variable is reading speed?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceWhile testing the sinking time of the same object in different liquids, which factor should be controlled?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceThe burning time of candles of different lengths is measured. Which is the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceIf acid concentration is changed and the reaction rate with a metal is measured, what is the independent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceA student investigates the relationship between sleep duration and the number of words remembered the next morning. What is the number of words remembered?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceWhile testing the effect of water temperature on the dissolving time of a tablet, what should be controlled?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceThe electric current produced by a solar cell is measured at different distances from a light source. Which is the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceThe cooling time of water in cups covered with different insulating materials is measured. What is the independent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceIf the amount of food is changed and fish growth is measured, what type of variable is the amount of food?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceWhile studying water temperature over time in sunlight, which factor can be kept controlled?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceDifferent amounts of detergent are used and the percentage of stain removed is measured. What is the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceWhile testing the effect of thread thickness on the load it can bear before breaking, which is the independent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceIn an experiment, wire length is changed and its electrical resistance is measured. What type of variable is resistance?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceWhile testing plant growth under different colours of light, which should be a controlled variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceThe amount of gas produced by yeast at different temperatures is measured. Which is the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceIf fan speed is changed and the drying time of a wet cloth is measured, what is the independent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceA student investigates the effect of study time on test score. What type of variable is the test score?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceWhile testing the effect of salt concentration on whether an egg floats, which variable should be controlled?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceThe time taken by a stone to reach the ground from different heights is measured. What is the dependent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMediumScienceWhile testing the effect of ice-cube size on melting time, what is the independent variable?Class 9Exploration: Entering the World of Secondary ScienceVariables in an experimentMedium

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