An Internal Preview is a statement, which is made in the body of the speech, so that the audience knows what the speaker is going to discuss next.
The title slide is the first slide of a presentation. It usually contains a title and a subtitle.
Audience Dynamics means the motivations, attitudes, beliefs and values, which influence the listener's behaviour.
Slide transitions are visual effects which appear in PowerPoint when one slide moves to the next. There are many different transitions, like for example fade and dissolve.