Independent and Dependent Variables

Front

What is an independent variable?

Back

An independent variable is a variable that is manipulated or changed in an experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is a variable that is measured or observed in an experiment, and it is affected by changes in the independent variable.

Front

In the equation g = f(h), identify the independent and dependent variables.

Back

Independent variable: h (hours spent studying); Dependent variable: g (grade earned).

Front

In a study, if the number of hours studied increases, what happens to the grade? Identify the variables.

Back

Independent variable: hours studied; Dependent variable: grade. The grade is expected to increase with more hours studied.

Front

What does the term 'controlled variable' mean?

Back

A controlled variable is a variable that is kept constant throughout an experiment to ensure that the results are due to the independent variable.

Front

How do you identify the independent variable in a table of values?

Back

The independent variable is typically the one that is changed or controlled by the experimenter, often found in the first column of a table.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe its effect on the dependent variable, which is measured.

Front

In the context of a bakery, if the number of hours baked increases, what is the independent variable?

Back

The independent variable is the number of hours baked.

Front

If a graph shows the relationship between time spent studying and test scores, which axis represents the independent variable?

Back

The x-axis represents the independent variable (time spent studying).

Front

What is an example of an independent variable in a scientific experiment?

Back

An example of an independent variable could be the amount of sunlight a plant receives.