Question

a group of students build a catapult that releases marbles. the students performed several trials with marbles of different masses. catapult information mass of marbles (g) distance traveled (m) 2.0 3.5 3.0 2.4 4.0 1.3 based on the information, which is the independent (manipulated) variable in the experiment? the type of marbles the size of the marbles the mass of the marbles the distance the marbles traveled

Explanation:

In an experiment, the independent (manipulated) variable is the one that is changed by the experimenter to observe its effect on the dependent variable. Here, the students changed the mass of the marbles (as seen in the "Mass of Marbles" column with different values: 2.0 g, 3.0 g, 4.0 g) and measured the distance traveled (dependent variable). The type and size of marbles are not indicated as being changed, and distance is the outcome being measured. So the independent variable is the mass of the marbles.

Answer:

the mass of the marbles