In this document you can find some definitions that could help you to be able to differentiate some terms.

1. THE INTONATION IN
ENGLISH
by Jesús Rodríguez

3. How important is intonation?

5. Descendingintonation(FallingIntonation).
(The pitch of the voice falls at the end of the sentence.)
Falling intonation is the most common intonation pattern in
English.
It is commonly found in statements, commands, wh-questions
(information questions),
confirmatory question tags and exclamations.

6. Statements
1. My name is Adir Ferreira.
2. Nice to meet you.
3. I’m going to the movies.
4. I’ll be back in an hour.
5. Have a great day.
Questions
1. What’s your name?
2. Where does he live?
3. Why did you do that?
4. Who’s that woman over there?
5. How can I open this?

7. Ascending intonation (Rising Falling).
Describes when our pitch rises from the stressed syllable of the
last content word of the sentence and continues to climb.
Depending on the context and the emotion or attitude you’re
trying to convey with your tone, rising intonation may start
earlier in the sentence and then climb all the way to the end.

8. 1. Are you American?
2. Does she know about this?
3. Can you lend me a pencil?
4. Is the movie good?
5. Are we leaving soon?
Rising intonation is also used in expressions like:
1. Excuse me?
2. Really?
Yes/No questions

9. Rhythm
Rhythm is about how we use a combination
of stressed and
unstressed words in sentences. Sentences
have strong beats (the stressed words) and
weak beats (the
unstressed words). Intonation is the way
the pitch of a speaker's voice goes up or
down as they speak. We use intonation to
help get our message across.

10. Attitudinal function of
intonation .
Expresses the mood and emotions of a
speaker, their attitude to the certain situation
and also to the listener or other interlocutor.
... A single sentence can be pronounced in a
number of different ways depending on
intonation of the utterance.