unbalanced force causes objects to move
objects_fall_downward_if_there is nothing_to_support. coercion is force. animate_object has ability_to_move_itself reaction is force. whirling is fluid_movement. uninterestingness is powerlessness. logic_and_reason is unnatural_flawed_devices. magnetomotive_force is force. weak_force is force_vector. gravity is attractive_force_felt_between_objects.