Logos – an appeal to Logic
This means the use of statistics, facts and data to reinforce your argument
The use of a logical appeal can enhance a persuasive speech by supplying information that is undeniable. It creates an argument that is hard to rebut because with facts to support you argument it becomes less of and opinion and simply a statement of what is true.
Ethos – an appeal to Authority
This means to address the credibility of a source of information. Using specific terminology related to the topic or quoting a notable figure is a good way to appeal to authority.
By using ethos you are able to enhance your speech by establishing that those with significance in the field agree with your point, thereby showing that you are right. Using the technical language adds the impression that you have knowledge of the topic.