The similarities between them include: (1) their aim is to persuade and encourage customers to believe into what they are saying as well as both are informative. This takes the speech to be of persuasive type (2) usage of words that catches the ears of the listeners. The differences include (1) advertisements focus only on the positive side or strengths of the product to be sold in the market while in speeches, you lay down all the strengths and weakness of a particular area or subject.(2) speeches' subjects cover a wider scope compared to advertisements which is usually product based or centered.
Both the advertisement and the speech focus on industry work as vital to the war effort. However, the advertisement directly connects factory work to war victory through images and a concise message with key words, such as free and win. By contrast, the speech delivers this message by thanking workers in various American industries. It lists a variety of industries and speaks equally of the roles of men and women, whereas the advertisement focuses solely on men working in factories.