Experimental Variables

Front

What is an independent variable?

Back

An independent variable is the factor that is changed or manipulated in an experiment to observe its effect on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

In an experiment testing the effect of mass on flight length, what is the independent variable?

Back

The independent variable is the amount of mass.

Front

In an experiment testing the effect of shoe color on running speed, what is the independent variable?

Back

The independent variable is the shoe color.

Front

In an experiment with pine tree seedlings, what is the dependent variable if the hypothesis is about growth rates?

Back

The dependent variable is tree growth.

Front

In a pendulum experiment, what is the dependent variable if the hypothesis involves time period?

Back

The dependent variable is the time period.

Front

What is the purpose of a hypothesis in an experiment?

Back

A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

Front

What is the control variable in an experiment?

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A control variable is a factor that is kept constant to ensure that any changes in the dependent variable are due to the independent variable.

Front

Why is it important to have a control group in an experiment?

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A control group provides a baseline for comparison, helping to determine the effect of the independent variable.

Front

What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.