James took two pea plants, placing one in a dark closet and the other on a sunny window sill. Both are located in air-conditione
d rooms. He then measured the growth of the pea plants after a week. In this experiment, sunlight is a(n)____________. A. independent variable
B. dependent variable
C. constant
D. control
I think the correct answer from the choices listed above is option A. In this experiment, sunlight is an independent variable. It is the variable that cannot be changed James no matter what. Hope this answers the question. Have a nice day.
The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
The dependent variable is 'dependent' on the independent variable. As the experimenter changes the independent variable, the effect on the dependent variable is observed and recorded.
In this experiment, sunlight is an independent variable. It is the variable that cannot be changed James no matter what.
Reason: No force is opposing the motion of an object except frictional force. Hence an object requires 15 N of force to set an object in motion and is greater than friction. Hope this helps, have a great day ahead!