I cannot comment with any authority on how the rest of the
world behaves, but Americans and obsessed by CAUSE.
As soon as we find ourselves in a position of some urgency, our
first priority (often to our detriment) is to account for how we
got there. This obsession with cause makes it quite likely that
if the speaker clearly indicates that he or she is going to
employ a cause and effect organizational pattern, the audience
member will be both willing and able to follow.
How about one of those maddeningly scholarly definitions?
To organize employing cause and effect is to connect a precedent to its consequence--that is a result to the actions from which it inevitably follows.
Let's try to say that in simpler terms. From the point of view of rhetorical cause and effect, the universe is a pool table on which things get where they are, because other things bump into them.

The speaker's goal can be broken into the following steps:
the latter issued directly from the former.
One of the unique properties of Cause and Effect is that the speaker can go either direction to establish the relationship. The speaker can, first, establish the situation with which the audience must contend, then go backwards to the actions leading up to it; or the speaker can begin by describing actions--either performed or proposed--and show how the have or will lead to a particular result. Audience's are comfortable with either option, as long as the cause and effect are clearly "labelled."
When employing Cause and Effect Development, keep these things in mind:
Consider the tragic but illuminating case of someone who claims that a loved one radically altered his/her personality or even committed suicide, because he or she listened to a particular song or genre of music--that the music somehow CAUSED the tragedy. Those of us who face such tragedies wish (and cannot really be held in too much disdain for believing) that such simple explanations exist, but the rest of us cannot be so casual in our investigation of cause and effect.
I am going to go out on a limb here and state a few declarations:
To claim that they do one had better have massive amounts of evidence to support the cause and effect relationship.
For instance, which house below is more likely to be burglarized?

If you picked Home A, give up your life of crime and return to your first love,Macrame. If you picked Home B, you are right. Home B is more likely to be burglarized, because the street light illuminates the entrance to Home A, but the street light that should illuminate Home B is broken. The burglar would obviously prefer Home B.
That said, recognize that the broken street light in no way CAUSES Home B to be burglarized. The condition of darkness created by the broken street light simply increases the likelihood that if someone decides to burglarize a home, it will be Home B.
Influence is not the same as cause. You can argue effectively on the basis of influence, just do not make the mistake (or the intentional manipulation) of confusing the two.
| Topic: | How Steam Elevators work. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Purpose: | To Inform. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Specific Speech Purpose: | The audience member will understand how steam-operated elevators work. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Central Idea: | The elevator sits on top of a piston, pushed upward by the energy created by the steam. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Main Idea One: | The elevator sits on a piston which is pushed up by steam. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A. When water turns to gas it expands. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| B. The expansion creates a hydraulic force against the piston. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Main Idea Two: | At the top of the cycle, the elevator can vent the steam and go back down. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A. The steam created kinetic energy. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| B. The raising of the elevator created potential energy. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C. The elevator can convert potential energy into kinetic energy. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||