Question

1. robin measures the force needed to pull a wagon up an incline as more weight is added. in this investigation, weight is the ___ variable.

a. control
b. dependent
c. independent
d. natural

Explanation:

In an experiment, the independent variable is the one that is changed or manipulated. Here, the weight being added to the wagon is what is being changed to observe its effect on the force needed to pull the wagon up the incline.

Answer:

C. independent