Experiment: Car 1 will roll down the ramp and exert a force on car 2. The force experienced by car 2 is measured indirectly using (the distance it travels? or its speed?)
. If the force increases, car 2 will travel (?slower ? Farther?)
. The independent variable, or what’s being manipulated in the experiment, is (? the starting height of car 1 or The type of bumper attached to car ?)
. The dependent variable, or what’s responding, is (?The distance car 2 travels or the speed of car 1?)
. The height and starting position on the ramp are constants in this experiment.