Since only one factor changed in this experiment it is called a

A hypothesis that is tested with the manipulation of one variable, that is referred to as a controlled experiment. The change that comes from the manipulation creates a causality that is formed through cause-and-effect that is directional. The variable that is been up late it is called the independent variable, and the researcher is focused on observing the reaction of the variable that is left unaltered, and referred to as the dependent variable.

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy